1) A 17-year-old patient comes in for the germectomy of teeth 38 and 48.

This
The procedure will be performed under local anesthesia with 2% Lidocaine. What is the
fundamental principle by which that substance acts?
Select one:

a. By application of the cold characteristic of the anesthetic.

b. Due to the direct induction of a muscular ischemia.

c. By pressure on the nerve trunks to be blocked.

d. Due to blockage of depolarization and axonal conduction.

12-year-old patient whom you have diagnosed with periapical abscess in tooth
number 17, is a carrier of Down syndrome with mild psychomotor disability and
Has a history of allergy to penicillin. What is the medication that should be
prescribe?
Select one:
a. Cephalosporin.
b. Amoxicillin-clavulanic acid.
c. Erythromycin.
d. Dicloxacillin.

3) Select the management in a patient with syncope in the dental office:

Oxygen is not administered.
Premedication management can reduce or suppress emotional factors.
The patient should be placed horizontally, with the head lower than the body.
4. Inhalation of alcohol fumes.
5. No chest compressions or mouth-to-mouth resuscitation are given.

Select one:
a. 2, 3, 4
b. 1, 3, 5
c. 1, 2, 3

d. 2, 4, 5
4) To achieve success regarding the bonding of metal crowns in cementation
For ceramics, it is advisable to achieve both micromechanical retention and:
Select one:
a. The carving of the incisal surfaces.
b. The carving of the axial walls.
c. The good chemical bond.
 d. The good occlusal carving.
5) In which procedure should antibiotic prophylaxis be performed to prevent a
bacterial endocarditis?
Select one:
a. Impressions for implants.
b. Placement of brackets.
c. Apicoectomy.

d. Injection of local anesthetics.

Select the term for mechanical wear at the level of the occlusal surfaces.
product of parafunctions:
Select one:
a. Excursion.
b. Erosion.
c. Attrition.

d. Abrasion.
7) Arrange and relate the times with the definition in the extraction protocol
by forceps:
TIMES DEFINITION
a. It is the avulsion of the tooth from its socket, following the correct
Syndesmotomy
lever maneuver.
It is the disarticulation of the tooth by breaking the fibers.
2. Traction
periodontal.
c. The placement of the forceps at the level of the clinical neck of the tooth
3. Dislocation
to find a point of support.
d. Technique used to disinsert periodontal fibers and
4. Grasp
crestodentales.
Select one:
a. 1d, 4c, 3b, 2a.
b. 1b, 2a, 4c, 3d.
c. 4c, 1a, 2d, 3b.

d. 3b, 1d, 4c, 2a.

33-year-old patient presents to dental service with dental abscess.
piece 45 and the prescribed drug is Tetracycline. What dosage should be managed in
this case?
Select one:
250 mg every 8 hours.
500 mg every 6 hours.
c. 500 mg every 4 hours.
250 mg every 24 hours.
9) Within the semiological classification of tumors, those simple tumors of the
The mucosa of connective origin is called:
Select one:
a. Fibroma.
b. Osteoma.
c. Angioma.

d. Adenoma.
10) A 5-year-old child has a high rate of dental cavities. What is the compound?
chemical to be used to reduce incidence?
Select one:
toothpaste.
b. Chlorhexidine.
c. Hydrogen peroxide.

d. Saline solution.
11) Which artery is auscultated during the blood pressure measurement maneuver?
arm?
Select one:
a. Common carotid.
b. Brachial.
c. Temporal superficial.
d. Poplitea.
12) Select the age at which the first permanent molar erupts.
Select one:
12 years.
b. 8 years.
about 10 years.
6 years.
13) The odontogenic cyst characterized by being located at the coronal level from the limit
The procedure for included teeth is called:
Select one:
a. Dentigerous cyst.
b. Periapical cyst.
c. Lateral periodontal cyst
d. Nasopalatine cyst.
14) Patient comes to their appointment after having received a resin restoration.
composite that covers the occlusal, mesial, and distal surfaces on tooth 16, of
According to the patient, the pain occurs only when biting food. Upon clinical examination
the existence of a gap at the level of the gingival-distal wall is verified
cavity and presence of inflammation in the gum. What is the diagnosis regarding the
restoration?
Select one:
a. Microfiltration of the restoration.
b. Interproximal caries.
c. High contact points.
d. Lack of interproximal contact.
15) The anesthetic-surgical risk assessment scale according to the American Society
of Anesthesiologists (ASA), which group do patients with belong to
mild systemic disease, controlled and non-disabling
Select one:
Group IV
b. Group III
c. Group II
d. Group I
A cyst is formed by three fundamental structures: a central cavity or
light, an epithelial lining and an outer wall or capsule. What structures
Does it contain the capsule?
Select one:
a. Connective tissue, fibroblasts, and blood vessels.
b. Content of cell waste, keratin or mucus.
c. Stratified flat epithelial tissue or pseudostratified.
d. Content of liquid or semi-solid material.

17) What are the essential factors that determine the occurrence of malocclusion?
Select one:
a. Intensity, duration, frequency, age.
b. Intensity, persistence, maintenance, breed.
c. Intensity, duration, maintenance, genetic.
d. Intensity, persistence, frequency, genre.

18) During the restorative process performed on the occlusal surface of tooth 17, after the
removal of carious tissue, with management of absolute isolation; you place acid
phosphoric both on the superficial cavity edge and on dentin, rinse, dry, and apply the
selected adhesive system. What does it produce at the dentin level?
Select one:
a. The replacement of collagen fiber.
b. The hybridization of hydroxyapatite.
c. The inhibition of the dental tubules.
d. The hybridization of the dentinal tubules.
19) Select the guidelines that allow you to preserve dental structure during the
carved
Use of partial coverage crowns.
2. Axial preparation of the teeth with minimum convergence angle.
3. Maximum convergence angle in the carving.
4. Preparation of flat occlusal surfaces.
5. Preparation of the occlusal surface, the reduction should follow the anatomical planes.
6. Preparation of the axial surfaces so that a maximum thickness is maintained
structure around the pulp tissue.
Select one:
a. 1, 2, 5, 6
b. 2, 3, 4, 5
c. 2, 3, 4, 6
d. 1, 3, 4, 5
What does the surgical term osteotomy mean?
Select one:
a. Cutting of alveolar bone using rotary instruments or chisels.
Resection of alveolar soft tissue using rotary instruments or chisels.
c. Resection of alveolar bone using rotary instruments or chisels.
d. Soft tissue alveolar cutting using rotary instruments or chisels.
21) A 25-year-old patient comes to your office, upon clinical examination presents in tooth 15.
16 restorations that cover the occluso-mesio-distal surfaces,
compromising the palatine tips. In this case, what type of restoration is needed?
does it happen?
Select one:
a. Direct restorations with amalgam.
b. Direct restorations with resin.
c. Onlay inlays.
d. Inlays.
22) A 23-year-old man comes to the office for a dental check-up. Upon examination
clinically, lip herpes is evidenced with 1 day of evolution, indicating that this is the second
Time presented in the month. What is the characteristic of this entity in the stages?
premature?
Select one:
a. High fever and presence of lymphadenopathy.
b. Viral vesicles filled with liquid.
c. Lesions with a dotted appearance with a red base.
d. Brown crusty lesions.

50-year-old patient with a history of valvular heart prosthesis and endocarditis

secondary bacterial. Goes to the dental clinic with toothache from tooth 35
which must be extracted. The patient is not allergic to any medication. What is it?
What is the antibiotic prophylaxis scheme that the dentist should prescribe?
Select one:
4 grams of amoxicillin - 60 minutes before the tooth extraction.
b. 2 grams of amoxicillin - 240 minutes before the extraction.
c. 2 grams of amoxicillin - 120 minutes before the tooth extraction.
2 grams of amoxicillin - 60 minutes before the tooth extraction.

24) What is the factor related to functional habits in children that produces the
malocclusion?
Select one:
Thumb sucking.
b. Lingual interposition at rest.
c. Lip suction.
d. Atypical swallowing and mouth breathing.

Portion of the tooth that extends from the occlusal surface or the incisal edge
up to the CEJ (cementoenamel junction); portion of the tooth covered by enamel.
Select the correct term for this statement:
Select one:
a. Clinical crown.
b. Anatomical crown.
c. Total covering crown.
d. Prosthetic crown.

26) Patient goes to dental consultation, reports discomfort in the upper molar.
Right; during the clinical examination, the upper molar number 16 can be observed that
has moved beyond the occlusal plane due to the loss of the molars
 antagonistic lower limbs. Select the correct term for the following sign
clinical
Select one:
a. Avulsion.
b. Extrusion.
c. Frémito.
d. Intrusion.

27) Endodontic treatment after a dental avulsion in a tooth with apex

closed reduces the risk of developing the following complication:
Select one:
a. External inflammatory resorption
b. Superficial reabsorption.
c. Ankylosis.
d. Reabsorption by replacement.

28) When a fissured epulis of 2 cm in length by 1 cm in width presents, due to poor

adaptation of a total prosthesis, the surgical treatment is to perform a biopsy.
Select one:
a. Incisional.
b. Excisional.
c. By freezing.
d. FNA.

29) The picture of hypertension induced by pregnancy is the second cause of

maternal mortality in Ecuador, which is characterized by a clinical picture of
high blood pressure readings, edema of the lower limbs, weight gain, headache and
it can occur in any pregnant woman. What is the key finding for the
diagnosis of this disease?
Select one:
a. Proteinuria in pregnant women over 12 weeks.
b. Proteinuria in pregnant women over 20 weeks.
c. Hypertension and edema in pregnant women over 8 weeks.
Any week of pregnancy with hypertension and edema.

30) What is the most relevant clinical sign in bacterial endocarditis?

Select one:
a. Embolism.
b. Whispers.
c. Chills.
d. Fever.

31) Patient comes for extraction of tooth 14, after a root canal treatment.
failed and root fracture. After 48 hours, a dry socket process is established.
What is the main symptom of this pathology?
Select one:
a. Increase in temperature greater than 38º Celsius.
b. Paresthesias at the level of the upper jaw.
c. Intense pain radiating in the right maxillary region.
d. Presence of secretion at the alveolar level.
 32) Which of the following clinical symptoms is common in reversible pulpitis?
Select one:
a. Sharp and radiating pain.
b. Pain that increases with palpation.
c. Stimulated pain that increases with the cold.
d. Spontaneous pain that increases with heat.

33) Relate the column that contains adverse effects with the respective family of
antimicrobials:

ANTIMICROBIAL
Adverse effects
S
1. Electrocardiogram alterations and ototoxicity at doses
a.Cetaceans
elevated.
2. Hepatitis and hepatic insufficiency have been observed. b. Lincosamines
3. Gastrointestinal disorders: nausea, vomiting and especially
c.Tetracyclines
diarrhea.
4. Irreversible slowing of bone growth, a
yellowing of the teeth and increased risk of d.Macrolides
cavity.
Select one:
d
b. 1c, 2a, 3b, 4b.
c. 1a, 2c, 3d, 4a.
d. 1d, 2c, 3b, 4a.

34) The biological thickness is a structure that is formed by the following

elements:
Select one:
a. Junction epithelium, sulcus epithelium, and connective insertion.
b. Free gingiva, gingival sulcus, and gingival margin.
c. Periodontal ligament, alveolar bone and cement.
d. Connective tissue, oral epithelium, and alveolar mucosa.

35) Select the procedures to follow for placing light-cured sealants on a

4-year-old patient:

Dental prophylaxis.

2. Removal of old restoration.

3. Conditioning of cracks.

Absolute isolation.

5. Photopolymerize for 20 seconds

Select one:
a. 1, 3, 5
b. 1, 2, 4
c. 2, 4, 5
d. 2, 3, 4

A contraindication for an extraction occurs if a patient is

taking:
Select one:
a. Bisphosphonates.
b. Soccer.
c. Collagen.
d. Glucosamine.

The biological thickness is the distance between the gingival sulcus and the crest.
So, what is the average measurement of this very important structure to consider?
to maintain periodontal health?
Select one:
Between 0.97 mm and 1.08 mm.
b. Between 3.2 mm and 4.2 mm.
c. Between 2.7 mm and 3.2 mm.
d. Between 2.1 mm and 6.9 mm.

38) The incision is the first surgical step in any surgical intervention; there are
different types of incisions according to the anatomical area and the pathology to be treated.
What does the gingival incision or of the attached gum consist of?
Select one:
a. Curvilinear horizontal incision, or crescent-shaped, with the convex portion facing toward the
gingival zone.
b. Horizontal sulcular incision with two oblique vertical incisions from the gingival sulcus to the
lobby background.
c. Horizontal sulcular incision, connected to an oblique discharge from the gingival sulcus to the bottom of
lobby.
d. Horizontal incision that follows the gingival grooves up to the free margin, scalloping the
dental necks, sectioning the papillae.

39) Diagnostic models in fixed prosthesis are articulated in:

Select one:
a. Central relationship.
b. Protrusive interocclusal.
c. Condylar guide.
d. Maximum intercuspation.

One of the most common causes of endodontic failure in the upper first molar
It is the presence of a fourth canal. In which root is this canal located?
Select one:
a. Distopalatina.
b. Mesiobuccal.
c. Distovestibular.
d. Palatina.

41) What is the medication administered to an adolescent patient who presents

rheumatic fever as a background and remains under long-term treatment?
Select one:
Benzathine penicillin every 21 days.
b. Amoxicillin plus clavulanic acid every 21 days.
c. Azithromycin every 21 days.
d. Ampicillin plus sulbactam every 21 days.

42) A 25-year-old patient comes in for a routine check-up, during the questions about
The patient indicates being bulimic and you clinically observe the palatine surfaces.
polished and shiny upper teeth. The described characteristics are associated with
con:
Select one:
a. Abrasion.
b. Attrition.
c. Erosion.
d. Abfraction.

43) From what remnants does the lateral periodontal cyst originate?
Select one:
a. Embryonic structures of the oral region.
From the dental plate.
c. De Malassez.
d. From the reduced epithelium of the enamel.

44) Arrange the steps to follow for a periodontal treatment:

1. Motivation phase.

2. Corrective phase.

3. Systemic phase.

4. Maintenance phase.

Select one:
a. 3, 1, 2, 4
b. 2, 3, 4, 1
c. 4, 1, 3, 2
d. 3, 4, 1, 2

45) After a 60-minute treatment in the dental chair and at the moment of reclining the
back to the normal position, it is evident that the patient presents intense paleness,
lost look and does not respond to the stimuli and verbal commands given by you.
What is the proper position to reverse the symptoms?
Select one:
a. Raise the headrest of the dental chair to 60 degrees and lower the patient's feet.
b. Lower the dental chair's headrest to 30 degrees and raise the patient's feet.
c. Lower the dental chair backrest to 0 degrees and raise the patient's feet.
d. Raise the headrest of the dental chair to 90 degrees and lower the patient's feet.
 46) What type of marginal termination in fixed prosthesis is recommended for a patient who
at the level of tooth 11 there is a contact area that extends to the gingival crest,
cervical erosion, root sensitivity that has not been able to be controlled with
more conservative procedures have been decided to perform a crown?
Select one:
a. Supragingival margin.
b. Subgingival margin.
c. Marginal juxta-gingival
d. Margin in Chamfer.

47) A 65-year-old female patient comes to the consultation reporting pain and increased
volume in the right hemisphere, which shows an increase in intensity and volume
with the intake of food over a 72-hour period. During the clinical examination,
evidence of increased volume at the parotid area on the same side and
decrease in salivary flow, without characteristics of an infectious process. Select the
presumptive diagnosis:
Select one:
a. Sialolithiasis.
b. Mucocele.
c. Facial cellulitis.
d. Masseter hypertrophy.

48) Select the contraindications for the use of naproxen:

Rheumatoid arthritis.

2. Mild toothaches.

3. Hypersensitivity to NSAIDs.

4. Dyspepsia.

5. Pregnancy and breastfeeding.

Select one:
a. 3, 4, 5.
b. 1, 2, 3.
c. 2, 3, 4.
d. 1, 3, 5.

The periapical cyst is derived from the remnants of:

Select one:
a. Reduced enamel epithelium.
b. Internal epithelium of the cap phase.
c. Serres.
d. Malassez.
 50) An 8-year-old patient arrives at the dental clinic with her mother, who reports that the girl
he received a blow with a stick, which affected piece 21, upon clinical examination it is observed
6 mm dislocation inside the socket, injury to the oral mucosa and the tissues
underlying soft tissues. The radiographic examination shows the disappearance of the space.
periodontal of the mentioned piece and alveolar fracture. What injury does it correspond to?
the mentioned case?
Select one:
a. Alveolitis.
b. Intrusion.
c. Extrusion.
d. Avulsion.

51) Among the contraindications for dental extraction are the

malignant tumors associated with a tooth. What is the reason why it should not be
to carry out the extraction?
Select one:
a. Due to the deficit in the effectiveness of the anesthetic solution.
b. Due to the ease of dissemination and the lack of healing in the wound.
c. Due to the high risk of producing osteoradionecrosis.
d. Due to the exacerbation and spread of microorganisms.

52) In which patient is it necessary to prescribe prophylactic antibiotics before performing

a simple exodontia?
Select one:
a. Renal Dysfunction.
b. Prosthetic heart valve.
c. Pacemaker.
d. Controlled diabetic.

53) When a porcelain crown is made and the marginal contour invades the sulcus
Gingival over 1mm, this can cause an alteration in the periodontium. What
Is it very common to find it as an initial long-term effect of the alterations?
Select one:
a. Dental mobility.
b. Apical migration of the gingival margin.
c. Marginal suppuration.
d. Loss of dental tissue at the cervical level.

54) What is the purpose of saline solution irrigation at the time of the
osteotomy with rotary instrument?
Select one:
a. Remove the bone remains and spicules.
b. Prevent paresthesias.
c. Cool the tissues and prevent bone necrosis.
d. Prevent unwanted fractures.

According to Clark's rule, indicate what happens in a first premolar.

superior at locating the X-ray cone with a horizontal angulation from the mesial:
Select one:
a. The vestibular root does not displace.
b. The palatal root shifts distally.
c. The vestibular root projects mesially.
d. The palatal root projects towards the mesial.

56) Patient comes to consultation due to presenting odontalgia in tooth 33. Within the
personal pathological history shows that in her last pregnancy she presented
eclampsia syndrome. What symptoms did this patient present?
Select one:
a. Hypertension, proteinuria, and edema.
b. Hypertension, hyperreflexia, and edema.
c. Hypertension, edema, and coagulation disorders.
d. Hypertension, proteinuria, and seizures.

Which of the following corticosteroids has the highest anti-inflammatory potency?

Select one:
a. Hydrocortisone.
b. Prednisolone.
c. Dexamethasone.
d. Cortisone.

21-year-old female patient presents with fever and mild pain in tooth 23.
After the dental treatment. What medication would you use to manage this?
case?
Select one:
a. Diclofenac.
b. Codeine.
c. Tramadol.
d. Morphine.

59) A 54-year-old patient presents to clinical inspection with a small cyst located in
the soft tissues of the vestibular gingiva outside the bone at the level of the incisors,
it does not present pain or bleeding, it requires enucleation because it needs to be placed
a prosthesis. It has no associated causal factor. On radiographic examination, it does not
no evidence of any injury. What is the diagnosis of this injury?
Select one:
a. Lymphoepithelial cyst.
b. Nasolabial cyst.
c. Lateral periodontal cyst.
d. Gingival cyst.

A stable organic occlusion must have balance through its units of

occlusion. Select these units:

Posterior teeth

Central

3. Eccentric

4. Parafunction

Anterior Teeth

Select one:
a. 2, 3, 4
b. 3, 4, 5
c. 1, 2, 6
d. 4, 5, 6

61) Select the symptoms of an asthma attack:

1. Dyspnea.

2. Wheezing.

3. Exophthalmos.

4. Terms.

Select one:
a. 2, 3, 4.
b. 1, 3, 4.
c. 1, 2, 3.
d. 1, 2, 4.

62) Patient comes to the consultation with a diagnosis of fractured dental root of tooth 25.
Under local anesthesia, the extraction is carried out, considering the end of the
Procedure the need to suture the involved tissues. What is the objective?
What primordial will fulfill the suture in this case?
Select one:
a. Join the edges of the wound, promoting healing by secondary intention.
b. Stretch the tissues with excessive tension to bring the edges of the wound together.
c. Protect the clot, promoting good irrigation.
d. Protect the bony spicules as a result of a traumatic extraction.

63) Patient suffering from chronic renal failure, receives dialysis twice a
week. Requires extraction of teeth 24 and 35 due to cement caries and more
mobility grade 2. Once the care protocols prior to the
Tooth extraction. What would be the procedure to follow?
Select one:
Control active bleeding during the procedure.
b. Monitor the possible presence of hyperglycemia.
c. Carry out the procedure but be aware of the risk of the presence of endocarditis
bacterial.
d. Avoid hemostasis problems, susceptibility to infection, and other complications,
referring to the higher level of care.

64) Patient without pathological history, comes to the consultation for intense pain of
tooth 47 posterior to a fracture, which shows signs of infection. It
decide immediate extraction of tooth 47, a trunk anesthetic technique is performed
mandibular block, with lidocaine at 2% plus epinephrine 1:80,000; during the
the procedure the patient complains of intense pain that prevents any action
maneuver. What is the reason for the anesthetic not to fulfill its action?
pharmacological?
Select one:
a. Very posterior puncture in the pterygomandibular space.
b. Due to the fracture of the crown and presence of infection.
c. Due to hyperemia or variation in the pH of the tissue to be infiltrated.
d. Use of a short needle at the time of the anesthetic technique.

65) What injury occurs if a simple extraction is performed on a patient who

Have you been using Ibandronate for more than 2 years?
Select one:
a. Osteoid osteoma.
b. Osteomyelitis.
c. Osteoradionecrosis.
d. Osteonecrosis due to bisphosphonates.

66) What action is taken to cement a non-noble alloy inlay with

resin cements to prevent corrosion?
Select one:
a. Recording with hydrofluoric acid the internal surface of the metal inlay.
b. Clean the internal surface of the inlay with pumice stone and water using a brush
prophylactic.
c. Metalize the inner surface of the inlay and carry out the adhesive procedures on the
tooth.
d. Place chlorhexidine on the internal surface of the inlay and the periphery of the tooth.

67) What is the name of the anteroposterior curvature of the occlusal surfaces?
starting at the tip of the lower canine and continuing with the vestibular cusp of
the premolars and molars, continuing with the anterior border of the ramus?
Select one:
a. Speed.
b. Occlusion curve.
c. Wilson.
d. Camper.

68) Select the requirements that addition silicones must meet like those of
condensation, for taking a definitive impression:

Good dimensional stability.

2. To be thermally irreversible.

3. A complete elastic recovery.

4. Offers a working time of 3 to 6 minutes.

Select one:
a. 3, 4
b. 1, 4
c. 1, 3
d. 2, 4

69) The part of the root canal with the smallest diameter and point used by clinicians
as a reference for apical termination for shaping, cleaning and
obturación is called as:
Select one:
a. Apical constriction.
b. Smaller apical foramen:
c. Major apical foramen.
d. Union cement dentin.

70) The dentigerous cyst embryologically originates from:

Select one:
a. Reduced enamel epithelium.
b. Remains of Serres.
c. Hertwig's remnants.
d. Remnants of Malassez.

71) 24-year-old patient with a pericoronal abscess of tooth 38 with pain,

inflammation and pus under pressure. Select the best antibiotic coverage you
must prescribe:
Select one:
a. Piperacillin plus metronidazole.
b. Amoxicillin plus clavulanic acid and metronidazole.
c. Amoxicillin.
d. Piperacillin.

72) What is the pulp diagnosis of a tooth in which it is observed radiographically

an endodontic treatment with sub-obturated filling material?
Select one:
Clinically healthy pulp.
b. Previously treated tooth.
c. Pulp necrosis.
d. Previously initiated therapy.

73) Select the indications for the placement of sealants in pits and fissures in a
6-year-old child

Recently erupted pieces.

2. Caries in dentin of molar 16 and 26.

3. Pieces with pits and deep cracks.

Interproximal caries in molar 37 and 47.

5. Patients with a history of occlusal caries.

Select one:
a. 1, 3, 5
b. 2, 4, 5
c. 2, 3, 5
d. 1, 2, 3

74) When does mature swallowing begin?

Select one:
a. With the eruption of the first premolars.
b. With the eruption of the incisors and molars.
c. With the eruption of the canines.
d. With the eruption of the second premolars.

75) Select the correct characteristics of a mouth-breathing patient:

Lip incompetence.

2. Muscle hypotonia.

3. Class I of molar angle.

More free space between arches.

5. Absence of dark circles.

6. Round Face.

Select one:
a. 2, 3, 5
b. 1, 5, 6
c. 3, 4, 6
d. 1, 2, 4

76) After the adaptation process of a ceromer inlay, you

check that it only contains self-conditioning resin cement for
its cementation, considering that the pulp wall of this cavity is located
covered by modified resin glass ionomer, when demineralized with acid
phosphoric acid in the tooth cavity What can it cause?
Select one:
a. Dental iatrogenesis.
b. Increase in cement adhesion.
c. Marginal sealing.
d. Misalignment on the surface cable.

77) What is the treatment of a vital pulp of a tooth with formation called?
incomplete radicular, in which pulpal vitality is preserved and closure is achieved
apical?
Select one:
Revascularization.
b. Biopulpectomy.
c. Apical formation.
d. Apexification

78) In a bruxist patient with periodontal problems, it is observed that the root of the
the tooth is denuded of bone and the root surface is only covered
by periosteum and overlying gum. What is this bone defect called?
Select one:
a. Crater.
b. Angular.
c. Fenestration.
d. Dehiscence.
 79) By applying pressure on a hemangioma on the lower lip with a microscope slide, the
injury changes to a color:
Select one:
Purplish.
b. Whitish.
c. Blue.
d. Red.

80) 5-year-old patient comes to the appointment with her mother, during the examination she presents
root remnants in the tooth 55, considering it is the only one missing in the
temporary dentition What type of prosthetic restoration would you place?
Select one:
a. Removable partial prosthesis.
Denari Prosthesis.
c. Space maintainer based on a handle and band with intraalveolar guide.
d. Space maintainer with band and simple handle without intralveolar guide.

81) What are the sequential times of extraction with forceps?

Select one:
a. Application, dislocation, traction.
b. Grasping, traction, dislocation.
c. Compression, dislocation, traction.
d. Application, rotation, traction.

A 50-year-old patient with no personal medical history or previous history

family pathologies with a diagnosis of Chronic Periodontitis. What is the
pharmacological treatment?
Select one:
a. Paracetamol plus amoxicillin.
b. Amoxicillin plus metronidazole.
c. Ibuprofen plus amoxicillin.
d. Amoxicillin and clavulanic acid.

83) A 9-year-old patient comes to the consultation because they feel pain when eating.
The area of tooth 16, upon clinical examination, shows deep caries.
Radiographically, there is no evidence of communication of the lesion with the pulp chamber.
no compatible images with other pathologies are observed. The caries is removed, but
a 2 mm pulp exposure occurs which bleeds. What therapeutic approach should be taken?
Is it the right one?
Select one:
a. Pulpectomy.
b. Apexification.
c. Pulpotomy.
d. Direct pulp protection.

84) Relate the type of prosthesis with its respective support:

TYPES OF PROSTHESIS SUPPORT

Fixed dental prosthesis. Mucosal support.
2. Removable dental prosthesis. b. Implant supported.
3. Full prosthesis. c. Mucosal-supported.
4. Prosthetics with dental implants. d. Tooth-supported.
Select one:
a. 1c, 2d, 3b, 4a.
b
a
d

85) Patient comes to the consultation for extraction of tooth 14, due to a fracture of the
50% of the clinical crown. During the procedure, a subluxation occurs and
moderate mobility of tooth 15, due to an incorrect application of the
elevators. What is the immediate treatment to resolve this complication?
Select one:
a. Reimplant the tooth into its socket and stabilize it for 2 months alongside the neighboring teeth.
b. Does not require treatment, will only be kept under observation for a month.
c. Splinting of the neighboring teeth for 2 to 4 weeks and control of pulpal vitality.
d. Endodontics of tooth 15 and postpone surgical extraction of tooth 14.

86) Select the considerations to be taken into account for performing a pulpotomy.

The pulp chamber is with some degree of pathology.

The root pulp is normal.

The pulp chamber is healthy.

The root pulp is infected.

The goal is to leave vital tissue to recover health.

Select one:
a. 2, 3, 5
b. 1, 4, 5
c. 2, 4, 5
d. 1, 2, 5

87) Female patient, 52 years old, with no pathological history, not a carrier of
prosthesis, comes in due to presenting painful lesions in the oral mucosa, reports that the
they appear with some frequency and episodically in outbreaks of one to three
lesions. Clinical examination reveals superficial crateriform ulcers with a
white-yellowish base and an erythematous halo on the mucosa of the cheek and lip
inferior. What is the most likely diagnosis?
Select one:
Lichen planus on plaques.
b. Mucous membrane pemphigoid.
c. Recurrent aphthous stomatitis.
d. Common warts.

88) Two-year-old child presents with a 2 mm intrusive luxation towards the labial.
Upper central incisors. What is the treatment?
Select one:
a. Place a semi-rigid splint.
b. Orthodontic extrusion.
c. Surgical Replacement.
d. Wait for spontaneous re-eruption.

89) When there is a primary periodontal lesion with secondary pulp involvement.
What are the routes by which the infection of the pulp component occurs?
Select one:
a. Dentin tubules.
b. Alveolar Bone.
c. Periodontal ligament.
d. Root Cement.

90) What does osteotomy mean within an oral surgery procedure?

Select one:
a. Curettage of the bone tissue.
b. Bone tissue cutting.
c. Bone tissue removal.
d. Osteosynthesis of tissue.

91) One of the whitish lesions with a high tendency towards malignancy is the
leukoplakias. What is the main risk factor for this to happen?
Select one:
a. The homogeneous leukoplakias on the lip.
b. The localization and presence of epithelial dysplasia.
Elderly people have a greater predisposition.
d. Hematological deficiencies iron or vitamin B12.

92) The anesthetic technique for the upper anterior teeth blocks the following
anatomical structure
Select one:
a. Zygomatic region.
b. Maxillary vestibular periosteum.
c. Maxillary tuberosity.
d. Upper eyelid.

The intramuscular injection of Benzathine Penicillin G is prescribed with much

frequency in our health services to treat odontogenic infections and
prophylaxis of bacterial endocarditis. What is the dose used in adults?
Select one:
2,400,000 I.U.
1,000,000 U.I.
c. 1,200,000 IU
600,000 U.I.
94) Indicate to which malignant bone lesion of the jaw the following belongs
radiological characteristics: widening of the periodontal membrane of the
adjacent teeth, large radiopaque areas within a diffuse radiolucent background
not defined with poorly delimited irregular areas, with a mixed pattern that is
compares like rays of sunshine due to the reaction generated in the periosteum.
Select one:
a. Osteosarcoma.
b. Mucoepidermoid carcinoma.
c. Meningioma.
d. Adenocarcinoma.
95) 35-year-old patient with Necrotizing Ulcerative Gingivitis. What medications are
Should they prescribe in this case?

Select one:
a. Metronidazole plus tetracycline.
b. Tetracycline plus gentamicin.
c. Amoxicillin plus ciprofloxacin.
d. Amoxicillin plus metronidazole.
96) A 67-year-old patient comes to consultation to get new full dentures, her
old prostheses are very loose, when replacing them with new dental prostheses, the
patient recovers
Select one:
a. Vertical Dimension.
b. Degree of mobility of the mucosa of the ridge.
c. Height of the residual ridges.
d. Mutually protected occlusion.
The destruction of the surrounding apical bone is a fundamental characteristic in the
asymptomatic apical periodontitis. Bone resorption is caused by:
Select one:
a. Dendritic cells.
b. Macrophages.
c. Fibroblasts.
d. Osteoclasts.
98) What is the treatment for pulp necrosis without radiolucent shadow?
apical?
Select one:
a. Biopulpotomy.
b. Necropulpectomy I.
c. Apiceptomia.
d. Necropulpectomy II.
 99) What corresponds to the height of the lower third of the face or the spatial relationship of the
jaw in relation to the vertical plane in complete dentures?
Select one:
a. Bruxism.
b. Vertical dimension.
c. Lateroretrusion.
d. Centric relationship.

100) Patient in the clinical evaluation presents in their motor part

obedience to verbal orders, is disoriented and his ocular response
it is spontaneous, a score on the Glasgow scale of is evident:
Select one:
a. 10
b. 12
c. 14
d. 15
101) Which of the following antibiotics acts synergistically with the
penicillin in odontogenic origin infections?
Select one:
a. Erythromycin.
b. Tetracycline.
c. Cefuroxime.
d. Metronidazole.
102) Patient with no history, comes to the consultation due to presenting pain.
intense in tooth 45. Within the operative activities, the placement is carried out
of local anesthetic with vasoconstrictor, instrumentation of ducts and washing of
sodium hypochlorite. After a few minutes, the patient presents erythema, urticaria,
itching and mild dyspnea, what emergency situation is the patient experiencing?

Select one:
a. Orthostatic hypotension syndrome.
b. Hyperventilation syndrome.
c. Type I Hypersensitivity Reaction.
d. Sodium hypochlorite accident.
103) A 20-year-old woman comes to the consultation with orofacial edema and pain. In the
In the radiographic exam, a lesion of 3x3 can be observed, what is the diagnosis?
Select one:
a. Reversible pulpitis.
b. Symptomatic irreversible pulpitis.
c. Acute apical periodontitis.
d. Acute exacerbation of chronic apical periodontitis.

104) What is the name of the irregular dentin that is formed at the interface?
dentin pulp and which is limited to the area underlying the carious lesion?
Select one:
a. Tertiary dentin.
b. Translucent dentin.
c. Primary dentin.
d. Secondary dentin.
105) What are the specific curettes for scraping and smoothing?
radicular in posterior dental pieces?
Select one:
a. Gracey 1/2, 3/4
b. Columbia 13/14, 4R/4L
c. Gracey 11/12, 13/14
d. McCall's 17-18, 7/8
106) 16-year-old patient undergoing fixed orthodontic treatment (brackets) attends
upon your examination, you observe the presence of inflamed gums and
plate at the cervical level following the gingival contour, after mechanical removal of
You observe white stains that are rough and dull in appearance, which indicate to you
what it is about:
Select one:
a. Mild or moderate dental fluorosis.
b. Amelogenesis imperfecta.
c. Incipient enamel caries.
d. Non-cariogenic cervical lesion, abfraction.

107) 18-year-old patient attends the consultation for endodontics.

piece 25 and within the personal history recorded, it has the diagnosis
of rheumatic fever. What is the dosage that the patient should be using?
as preventive treatment for rheumatic fever?
Select one:
Clemizol penicillin 1,000,000 intramuscular every day for three days.
Benzathine penicillin 1,200,000 intramuscular every three weeks.
Benzathine penicillin of 1,200,000 intramuscularly every three months.
d. Clemizole penicillin 1,000,000 intramuscular every three weeks.
108) According to Clark's rule, what happens in a first premolar?
superior when taking a periapical radiograph with a horizontal angle from
mesial?
Select one:
a. The vestibular root projects mesially.
b. The palatal root projects towards the mesial.
c. The roots appear elongated.
Both roots project towards the mesial.
109) Which of the following malocclusions develops in children who
do they exhibit a habit of digital sucking?

Select one:
a. Decrease of the horizontal overbite.
b. Open anterior bite.
c. Anterior crossbite.
d. Crowding of permanent incisors.
110) In the adhesive restoration process of a medium cavity with
irregularities at the level of the pulp wall, after acid conditioning
proceed to apply the adhesive system and polymerize it, afterwards the
Placement of composite resin. Days later, the patient returns with sensitivity.
postoperative. What is the most likely cause of this discomfort?
Select one:
a. Accumulation of the adhesive in deep areas that prevent solvent evaporation.
b. Increase in the washing time of the surface after contact with acid in enamel.
c. Presence of bubbles and irregularities on the external surface of the composite resin.
d. Absence of proximal contacts associated with the improper placement of wedges.
111) What is the name of the cylindrical, extra-long strawberry with six
cutting blades and inactive tip, which is used for removal of
occlusal interferences when performing endodontic accesses?
Select one:
Zekrya
b. Gates Glidden
c. Endo Z
d. Piece
 112) During the cementation process of an inlay restoration
made in ceromer on tooth 46, after the fitting of the inlay and
execution of the previous adhesive processes, you choose a resinous cement
What characteristics should it have?

Select one:
a. Fluidity and penetration in irregularities of the tooth surface and filling.
b. It prevents the occurrence of recurrent caries at the tooth and filling interface.
c. Closing and sealing of the interface greater than 2 mm between the tooth and the inlay.

d. It blocks the penetration of bacteria between the tooth and the filling.
113) Preeclampsia has the following manifestation in laboratory tests:
Select one:
a. Neutrophilia.
b. Proteinuria.
c. Decreased hemoglobin.
d. Elevated hematocrit.
114) Patient presents color change due to enamel hypoplasia in the
teeth 12, 11, 21, 22, clinically there is slight incisal wear observed. Indicate the
treatment for this case:
Select one:
a. Veneers.
b. Corona.
c. Onlay.
d. Teeth whitening.
115) The patient comes to the consultation with pain in tooth 11, clinically there is
a fracture of the crown of more than 50%; on the radiographic examination there is
widening of the periodontal ligament and the root canal is filled
three years ago. Indicate the treatment for this case:
Select one:
Implant.
b. Corona.
c. Pin and crown.
d. Inlay and pin.
116) What is the first-choice penicillin most used for treatment?
from periodontal disease alone or in combination with other compounds?

Select one:
a. Tetracyclines.
b. Clindamycin.
c. Ampicillin.
d. Amoxicillin.
117) Patient presents in tooth 24 interproximal caries, mobility
II of Miller, suppuration, bleeding, pain on probing and vertical percussion.
horizontal, the radiographic examination shows loss of crestal bone in the form of
wedge to the root surface. What is the diagnosis according to Armitage?
Select one:
Chronic Apical Periodontitis.
b. Periodontitis associated with Endodontics.

c. Acute Apical Periodontitis.

d. Necrotizing Periodontal Disease.
118) 40-year-old male patient, bruxist, who received two months ago
endodontic treatment on your tooth 36, you come to the consultation with sharp pain and
located that increases with chewing. What is the most likely diagnosis?
correct?
Select one:
Chronic gingivitis.
b. Irreversible pulpitis.
c. Dental fracture.
d. Hypersensitivity.
119) Within the elemental lesions in pathology, it is important to define
clearly specify the type of injury in the request for the histopathological study. What is it about
What does macula mean?

Select one:
a. Visible accumulation of fluid in the epithelium or beneath it.
b. Palpable circumscribed elevation less than 0.5 cm in diameter.
c. Shedding of the outer layers of the skin or mucosa.
d. Flat and circumscribed alteration of color or texture, not raised
120) The ionizing radiation produced by X-rays, when applied in the
product of the mother, causes the most harmful effect in the phase:

Select one:
Fetal.
b. Neonatal.
c. Embryonic.
d. Postnatal.
121) Interrelate the five categories that indicate teratogenic potential
of the medications used during pregnancy, according to the European community and
FDA.
Category A a. There is no fetal risk.

Category B b. Congenital malformations can occur.

Category C c. Contraindicated use
Category D d. Unproven fetal risk
Category X e. Unknown fetal risk
Select one:
a. 1e, 2c, 3a, 4d, 5b
b
a
b
122) Select the disadvantages of using sonic instruments and
ultrasonic devices for dental prophylaxis:

They create greater injuries to the periodontal tissues.

2. Reduced tactile sensation.

3. Reduced visibility due to water atomization.

4. The operator's time increases.
5. Temporary changes in hearing.
6. They create deposits of supragingival and subgingival calculus.

Select one:
a. 1, 2, 3
b. 1, 4, 6
c. 2, 3, 5
d. 4, 5, 6
123) Patient comes to his office after having received 6 months ago
a composite resin restoration in tooth 26 that covers the surfaces
occlusal, mesial, and distal of that tooth. In the clinical evaluation, verify the
presence of a gap at the level of the superficial cavity edge of the gingival wall of the
distal box, observing a high presence of bacterial plaque at that level. What
What element produced the presence of this painting?
Select one:
a. The excessive acid conditioning time on the dentin.
b. The polymerization shrinkage of restorative resin materials.
c. The demineralization of the composite resin due to the presence of bacterial plaque.
d. The excessive polymerization time of the resin.
124) 50-year-old patient with type II diabetes reports that he is bleeding from his ...
Signs when brushing teeth, does not present pain; through exploration.
The clinic and the periodontal probe show periodontal pockets of 5 mm, with calculus.
subgingival in most of her teeth and type II recessions were also observed
of Milles in the teeth 24 and 25 due to occlusal trauma; and a Plaque Index
80%. Arrange the sequence of the Treatment Phases.
Supragingival and subgingival detartrage

2. Selective wear of parts 24 and 25

3. Carry out complementary examinations

4. Motivation for Oral Hygiene and Plaque Control

5. Root Scaling and Planing
6. Surgery for covering recessions
Select one:
a. 5, 3, 2, 1, 4, 6
b. 3, 4, 1, 5, 2, 6
c. 6, 3, 4, 5, 1, 2
d. 1, 5, 3, 4, 2, 6
125) What is the cross-sectional profile of a K- file?
Flexofile?
Select one:
a. Parallelogram.
b. Square.
c. Circular.
d. Triangular.
126) A 5-year-old patient presents radiographically with tooth 74 showing decay.
deep, without pain or mobility upon clinical examination. When removing the decay, a
small pulp exposure. Select the treatment to follow:
Select one:
a. Direct pulp capping.
b. Indirect pulp capping.
c. Pulpotomy.
d. Biopulpectomy.
127) In an emerging treatment for hypoglycemia, the application of
the following medication increases normal levels:
Select one:
a. Bedex.
b. Glucose.
c. Glucagon.
d. Dextrose.
128) 7-year-old patient presents with carious lesion on tooth 74: amelodentinal caries
deep, extensive, spontaneous pain, constant, sensitivity to percussion. Without
presence of intraoral or extraoral inflammation. Radiographically, a is observed
radiolucent shadow compatible with caries less than 1 mm from the pulp chamber.
Select the diagnosis and treatment plan:
Select one:
a. Pulp Necrosis - Pulpotomy.
b. Reversible pulpitis - Direct pulp protection.
c. Deep caries - Indirect Pulp.
d. Irreversible pulpitis - Pulpectomy.
129) Thirty days after the placement of a total prosthesis in a patient.
67 years old, comes to your consultation worried about having felt some discomfort in the
muscles of the face. You explain that it is due to the tension of the loads
Vertical, diagonal, and horizontal chewing. Where does it distribute to?
tension of these chewing loads?
Select one:
Interdental papilla.
b. Residual ridge.
c. Periodontal ligament.
d. Retromolar triangle.
130) Select the mechanism of action of topical fluoride.
Select one:
a. Favor the post-eruptive maturation of enamel.
b. It increases the cariogenic potential of the plaque.

c. Less resistance to the demineralization of enamel.

It hinders the remineralization process of the enamel.
131) What is the function of the presence of a larger connector in the prosthesis?
removable upper partial?
Select one:
a. Reduce the forces transmitted to the bone tissue.
b. Increase the forces transmitted to the retainers.
c. Improve the aesthetics of the removable prosthesis.

d. Increase the stability of the removable prosthesis.

132) Before preparing a deep cavity, the operator must
perform pulp vitality tests, these are executed by:
Select one:
Dental pressure.
b. Change of coloration.
c. Thermal means.
d. Sensitivity to cold
Mouth rinses have certain characteristics fulfilling their
bacteriostatic and bactericidal action. What of the characteristics listed in
Which of the following best defines chlorhexidine?
Select one:
a. Detergent.
b. Solubility.
c. Substance.
d. Desensitizing.
134) When we are faced with a pulp necrosis in a child, what is the
What is the objective of preparing the channels?

Select one:
a. Waiting for the part to be replaced does not require treatment.

b. Reduce the bacteria from the contaminated pulp.

c. Replace the pulp with gutta-percha cones.
d. Obtain very wide ducts.
135) In which systemic disease is the treatment contraindicated?
endodontics in pediatric patients?
Select one:
a. Liver disorder.
b. Psychological disorder.
c. Hemorrhagic disorder.
d. Congenital disorder.