Student name:

Student number:

Faculty: Dr. Musab Abu Arquob Feb 24, 2007

Third Year Dental Students

Second Theoretical Exam
2006/2007

(Duration: 60 Min)
Please answer all the questions
 Multiple Choice Questions

In each of the following statements, Please select the one most correct
answer:

1. A less length of tooth than normal may be shown if the

edentulous patient :
a. Has a short upper lip.
b. With along upper lip.
c. Has superior protrusion.
d. None of the above.

2. The low lip line :

a. Indicates the amount of the denture which may be seen under
normal conditions.
b. Assists in determining the length of tooth needed.
c. Gives some indication of the width to be taken up by six
anterior teeth.
d. All of the above.

3. Stability is :
a. The ability of denture to remain in contact with its supporting
mucosa.
b. The force of attraction existing between denture and mucosa.
c. The ability of denture to remain stationery in relation to the
surrounding muculature.
d. None of the above.

4. The anterior plane is :

a. An imaginary line running from the external auditory meatus
or trgus of the ear to lower border of the ala of the nose.
b. An imaginary line joining the pupils of the eyes.
c. Line at right angles the medline sagittal plane of the face.
d. b+c.

5. Normally there is a gap of 2-3mm between the occlusal surface

of the teeth when the mandible is in rest position this gap is
called :
a. Speaking space.
b. Vertical dimension.
c. Freeway space.
d. All of the above.

6. In selection of the teeth colour : a person of powerful build an

with large teeth usually has :
a. Pearly-white teeth.
b. Teeth of dark shade and rather pronounced colour.
c. Yellow is dominant with this person.
d. None of the above.

7. The denture base function(s) is (are) :

a. To provide a comfortable and atraumatic occlusion.
b. To assist in preparing food for deglutition.
c. To provide the retention and stability of the denture.
d. All of the above.

8. According to the positioning of the upper central teeth its long

axis is :
a. Parallel to the vertical axis when viewed from the front or the
side.
b. Slopes bucclly when viewed from the front.
c. Inclines towards the vertical axis when viewed from the front.
d. None of the above.

9. According to the positioning of the lower canine its long axis is:
a. Parallel to the vertical plane when viewed from the front.
b. Leans very slightly towards the midline when viewed from
front.
c. Inclines the vertical.
d. None of the above.

10. The position of the upper second premolar in setting of the

teeth :
a. Both buccal and palatal cusps are in contact with the occlusal.
b. The palatal cusp is about 1mm short of, and its buccal cusps in
contact with the occlusal plane.
c. Only mesiopalatal cusps in contact with the occlusal plane.
d. None of the above.

11. In setting of teeth the position of lower second molar :

a. The mesiobuccal cusp occludes in the fossa between upper
second premolar and first molar.
b. The buccal cusp contacting the fossa between the low upper
premolars.
c. The distal and mesial cusps are about 2mm above the occlusal
plane.
d. None of the above.

12. The process of the carving the denture base to simulate the
contour of the natural tissues which are being replaced by the
denture is called :
a. Wax pattern.
b. Packing.
c. Festooning.
d. None of the above.

13. In complete denture construction in the first step of flasking :

a. The top portion or capping of the flask is poured.
b. The upper half of the flask is put in place and stone is poured
to the occlusal surface of the teeth.
c. The cast is secured to the base of the flask with stone.
d. None of the above.

14. In complete denture construction –flasking- a plaster

separating medium is painted on :
a. The base of the cast.
b. The first stage stone.
c. The surface of the second stage stone.
d. All of the above.

15. Semi-adjustable articulator is:

a. Used primarily in full mouth reconstruction when the occlusal
surfaces of the natural teeth are to be restored.
b. The most widely used in many phases of dentistry, but are of
particular importance in complete and partial denture
construction.
c. Used to make simple dental appliances, such as all plastic
temporary partial dentures.
d. None of the above.

16. Anterior "Vibrating" Line is :

a. The familiar "junction of the hard and soft palate."
b. Is an imaginary line at the junction of the aponeurosis of the
tensor veli palatini muscle and the muscular portion of the soft
palate.
c. The "Ah" line.
d. All of the above.

17. Amount of tooth below lip line depends on:

a. V.D.O.
b. Vertical Overlap (Overbite.)
c. Mobility of Upper lip.
d. All of the above.

18. The length of interior upper teeth may be guided by the use of
the :
a. Low lip line.
b. High lip line.
c. Canine lines.
d. All of the above.
Thank you
Good lock
1. Maxillary individual trays are cut :

a) At the previously marked muccobuccal fold position.

b) 3-4mm short of muccobuccal fold position.
c) 2mm short of the buccal and labial sulci at rest.
d) 2mm short of muccobuccal fold position with a”V” shape relife over
the frena.

2. The area between the mandibular buccal frenum and the anterior edge of
the masseter muscle is known as:

a) The crest of the residual ridge.

b) The retromolar pad.
c) The Genial tubercle.
d) The Buccal Shelf

3. alginate is used :

a) Wenever there are undercuts not suitable for rigid materials.

b) As a final wash material.
c)to modify the fit of the stock tray.
d)All of the obove

4. Impression compound:

a) It produces excellent surface details.

b) It can be used to obtain preiphal seal.
c) It can not be add to and re-adapted.
d) None of the obove.

5. As resorption progresses, what dimensions do the maxillary and mandibular arches

assume?

a) the maxillary arch becomes narrower and the mandibular arch broader.
b) the maxillary arch becomes broader and the mandibular arch narrower.
c) both arches become narrower
d) both arches becom boroader.

6. Normally there is a gap of 2-3mm between the occlusal surface

of the teeth when the mandible is in rest position this gap is called
:
a. Speaking space.
b. Vertical dimension.
c. Freeway space.
d. All of the above.
 7. The process of the carving the denture base to simulate the
contour of the natural tissues which are being replaced by the
denture is called :
a. Wax pattern.
b. Packing.
c. Festooning.
d. None of the above

8. Impression paste (ZOE):

a. It produces excellent surface details.

b. It can be used to obtain preiphal seal
c. It can not be add to and re-adapted.
d.None of the obove.

9. Secondary Impressions for totally edentulous patients are usually performed

using:

a.plastic impression trays

b.Metallic impression trays
c.Individual trays
d.None of the above.

10. In order to border-mold the humular notches to its functional position the
patient is instructed to:

a) Perform a swallowing motion several times.

b) Open the mouth wide and close it several times.
c) To move the lower jaw to the right and left.
d) None of the obove

.
11.aa mechanical device that represents the temporomandibular joints and jaw
members to which maxillary and mandibular casts may be attached is colled :
a.facebow.
b.articulator
c..flask
d. Non of the abov.
.
12. temporary form representing the base of a denture and used for making jaw
relation records, arranging artificial teeth, or trial placement in the mouth is
colled:
a. .facebow.
b.Baseplates
c.Occlusion Rims
d.None of the obove
13) Incisive papilla:

a.Lies closer the crest to the mandibular ridge.

b.Located posterior to the maxillary central incisorsat the midline.
c.Two glandular openings.
d.None of the obov

14. Base plates can be fabricated using:

a. cold curing acrylic resign

b.Light curing acrylic resign
c.Shellack
d.All of the above

15.Water cooled trays are usually designed for:

a.Alginate
b.Plaster or compound
c.Agar Agar
d.All of the above

16. Retention is:

a.The force of attraction existing between denture and mucosa.

b.The ability of denture to remain staionery in relation to the surrounding
musculature
c.the ability of denture to remain in contact with its supporting mucosa
d.all of the above

17. The canine lines :

a.Indicates the amount of the denture which may be seen under normal
conditions.
b.Assists in determining the length of tooth needed.
c.Give some indication of the width to be taken up by six anterior teeth.
d.All of the above

18. Anterior "Vibrating" Line is :

a. The familiar "junction of the hard and soft palate."
 b. Is an imaginary line at the junction of the aponeurosis of the
tensor veli palatini muscle and the muscular portion of the soft
palate.
c. The "Ah" line.
d. All of the above.

19. In selection of the teeth colour : a person with fair hair, blue eyes and fresh
complexion usually :
a. Has Pearly-white teeth.
b.Has Teeth of dark shade and rather pronounced colour.
c.Yellow is dominant with this person.
d.None of the above.

20. In Relaxed position of the maxillo-mandibular relations:

a) The heads of the condyles are retruded in the glenoid fossae and the occlusal
surfaces of the teeth are separated by 2—4mm.
b) When the occlusal surfaces of the teeth make eccentric contact during
function.
c)The cusps of the opposing teeth are in contact, and the heads of the
condyles are placed back in the glenoid fossae.
d)All of the obove

21. Undercuts can be extremely helpful in the retention of the prosthesis in:

a) unilateral tuberosity undercuts.

b) Maxillary premolar areas.
c) Distolingual areas.
d) All of the above

22 . The retaining forces available to counteracted displacement of

the denture is:

a) The interference and locking of the cuspes.

b) The muscles surrounding the oral cavity , and the
tongue.
c) Adhesion and cohesion.
d) None of the obove
23. Fovea palatini :

a) Located posterior to the maxillary central incisors at the midline

b) As resorption takes place they will come to lie closer to the crest of
the mandibular ridge.
c) two glandular openings within the tissues of the posterior portion of the
hard palate on either side of the midline.

d.All of the obove.

24. In complete denture construction –flasking- a plaster

separating medium is painted on :
a. The base of the cast.
b. The first stage stone.
c. The surface of the second stage stone.

d.All of the above.

25. The length of the maxillary occlusion rim should be : (a

a.16mm.
b.18mm
c.20mm.

d. 22mm
Student name:

Student number:

Faculty: Dr. Musab Abu Arquob 25.11. 2007

Third Year Dental Students

First Theoretical Exam
2007/2008

(Duration: 60 Min)
Please answer all the questions
 Multiple Choice Questions
In each of the following statements, Please select the one most correct
answer:

Part one: multiple choice questions(MCQ):

2. in Selection of the stock trays for preliminary impression The upper or

maxillary stock tray :

a) Covers the maxillary tuberosity.

b) does not rock from side to side.
c) Sufficient space shoud not exist between the tray and the tissues for the
impression material.
d) a and b.

3.Water cooled trays are usually disigned for:

a)alginate.
b) palster or compound.
c) Zinc oxide-eugenol paste.
d) None of the obove.

4.custom trays ca

5. Maxillary individual trays are cut :

a) At the previously marked muccobuccal fold position.

b) 3-4mm short of muccobuccal fold position.
c) 2mm short of the buccal and labial sulci at rest.
d) 2mm short of muccobuccal fold position with a”V” shape relife over the
frena.

6. The objective of the border molding procedure is:

a) Recording the exact depth and width of the sulci at rest.

b) Recording the exact height of the residual ridges.
c) Recording the limit between moving and non moving structuree limiting
the denture.
7. Secondary impressions are usually performed using:

a) Plastic Impression trays.

b) Metal Impression trays.
c) Properly extended stock trays.
d) None of the above.

8. The objective of the Secondary impressions is:

a) To record totally the potential denture bearing area.

b) To obtain a precise master cast with high quality.
c) To record denture-limiting structures in function.
d) All of the above.

9. In order to border-mold the humular notches to its functional position the

patient is instructed to:

a) Perform a swallowing motion several times.

b) Open the mouth wide and close it several times.
c) To move the lower jaw to the right and left.
d) None of the obove.

10. by asking the patient to protrude the tongue and then to push the tongue
against the front part of the palate we mold the:

a)Lateral aspect of the floor of themouth.

b)Posterior portion of the floor of the mouth.
c)The anterior lingual flange.
d)None of the obove.

11. Undercuts can be extremely helpful in the retention of the prosthesis in:

a) unilateral tuberosity undercuts.

b) Maxillary premolar areas.
c) Distolingual areas.
d) All of the above.

12 . The retaining forces available to counteracted displacement of

the denture is:

a) The interference and locking of the cuspes.

 b) The muscles surrounding the oral cavity , and the tongue.
c))Adhesion and cohesion.
d) None of the obove.

13.Fovea palatini :

a) Located posterior to the maxillary central incisors at the midline

b) As resorption takes place they will come to lie closer to the crest of the
mandibular ridge.
c) two glandular openings within the tissues of the posterior portion of the hard
palate on either side of the midline.
d) All of the obove.

13. The area between the mandibular buccal frenum and the anterior edge of
the masseter muscle is known as:

a) The crest of the residual ridge.

b) The retromolar pad.
c) The Genial tubercle.
d) The Buccal Shelf.

14. In Retruded position of the maxillo-mandibular relations:

a) The heads of the condyles are retruded in the glenoid fossae and the
occlusal surfaces of the teeth are separated by 2—4mm.
b) When the occlusal surfaces of the teeth make eccentric contact during
function.
c) The cusps of the opposing teeth are in contact, and the heads of the
condyles are placed back in the glenoid fossae.
d) All of the obove.

15. alginate is used :

a) Wenever there are undercuts not suitable for rigid materials.

b) As a final wash material.
c) to modify the fit of the stock tray.
d) All of the obove.

16.Impression paste (ZOE):

a) may be modified and added to if faulty.

b) It produces excellent surface details.
c) It is hygienic.
d) All of the obove.

17. Impression compound:

a) It produces excellent surface details.

b) It can be used to obtain preiphal seal.
c) It can not be add to and re-adapted.
 d) None of the obove.

18. As resorption progresses, what dimensions do the maxillary and mandibular

arches assume?

a) the maxillary arch becomes narrower and the mandibular arch broader.
b) the maxillary arch becomes broader and the mandibular arch narrower.
c) both arches become narrower.
d) both arches become broader.

19. The low lip line :

a. Indicates the amount of the denture which may be seen
under normal conditions.
b. Assists in determining the length of tooth needed.
c. Gives some indication of the width to be taken up by six
anterior teeth.
d. All of the above.

20. Stability is :
a. The ability of denture to remain in contact with its
supporting mucosa.
b. The force of attraction existing between denture
and mucosa.
c. The ability of denture to remain stationery in
relation to the surrounding muculature.
d. None of the above

Part II: In the following figures, certain anatomical landmarks

are drawn and numbered, please mention the names of the
required landmarks:
The anatomical landmarks are:

THANK YOU
Good Luck

1. 2.

3. 4.

5. 6.

7. 8.

9. 10.
Student name:

Student number:

Faculty: Dr. Musab Abu Arquob 23.11. 2008

Third Year Dental Students

First Theoretical Exam
2008/2009

(Duration: 60 Min)
Please answer all the questions
 Multiple Choice Questions
In each of the following statements, Please select the one most correct
answer:

1. Secondary Impressions for totally edentulous patients are usually performed

using:

a) plastic impression trays

b) Metallic impression trays
c)Individual trays
d)None of the above.

2. in Selection of the stock trays for preliminary impression The upper or

maxillary stock tray :

a) Shoud covers the maxillary tuberosity.

b) does not rock from side to side.
c) Sufficient space shoud not exist between the tray and the tissues for the
impression material.
d) a and b.

3) in order to border-mold the labial frenum:

a) Perform a swallowing motion several times.

B)Open the mouth wide and close it several times.
c) To move the lower jaw to the right and left.
c)None of the above.

4) The retaining forces available to counteracted displacement of the complete

denture is- (are):

a) cohesion and adhesion

b)Atmospheric pressure
c)Undercut area
d)all of the above

5. Maxillary individual trays are cut :

a) At the previously marked muccobuccal fold position.

b) 3-4mm short of muccobuccal fold position.
c) 2mm short of the buccal and labial sulci at rest.
 d) 2mm short of muccobuccal fold position with a”V” shape relife over the
frena.

6. The objective of the border molding procedure is:

a) Recording the exact depth and width of the sulci at rest.

b) Recording the exact height of the residual ridges.
c) Recording the limit between moving and non moving structuree limiting
the denture.
d) All of the obove.

7.Fovea palatini :

a) Located posterior to the maxillary central incisors at the midline.

b) As resorption takes place they will come to lie closer to the crest of the
mandibular ridge.
c) two glandular openings within the tissues of the posterior portion of the hard
palate on either side of the midline.
d) All of the obove.
.

8.The objective of the Secondary impressions is:

a) To record totally the potential denture bearing area.

b) To obtain a precise master cast with high quality.
c) To record denture-limiting structures in function.
d) All of the above.

9.In order to border-mold the humular notches to its functional position the
patient is instructed to:

a) Perform a swallowing motion several times.

b) Open the mouth wide and close it several times.
c) To move the lower jaw to the right and left.
d) None of the obove.
10.by asking the patient to protrude the tongue and then to push the tongue
against the front part of the palate we mold the:

a)Lateral aspect of the floor of themouth.

b)Posterior portion of the floor of the mouth.
c)The anterior lingual flange.
d)None of the obove.
11. Undercuts can be extremely helpful in the retention of the prosthesis in:

a) unilateral tuberosity undercuts.

b) Maxillary premolar areas.
c) Distolingual areas.
d) All of the above.

12.The area between the mandibular buccal frenum and the anterior edge of the
masseter muscle is known as:

a) The crest of the residual ridge.

b) The retromolar pad.
c) The Genial tubercle.
d) The Buccal Shelf.

13.alginate is used :

a) Wenever there are undercuts not suitable for rigid materials.

b) As a final wash material.
c) to modify the fit of the stock tray.
d) All of the above.

14.Impression paste (ZOE):

a) may be modified and added to if faulty.

b) It produces excellent surface details.
c) It is hygienic.
d) All of the obove.

15. Impression compound:

a) It produces excellent surface details.

b) It can be used to obtain preiphal seal.
c) It can not be add to and re-adapted.
d) None of the obove.

16. As resorption progresses, what dimensions do the maxillary and mandibular

arches assume?

a) the maxillary arch becomes narrower and the mandibular arch broader.
b) the maxillary arch becomes broader and the mandibular arch narrower.
c) both arches become narrower.
d) both arches become broader.

17. Stability is :
a. The ability of denture to remain in contact with its
supporting mucosa.
 b. The force of attraction existing between denture and
mucosa.
c. The ability of denture to remain stationery in relation to the
surrounding muculature.
d. None of the above

18.Anterior "Vibrating" Line is :

a. The familiar "junction of the hard and soft palate."
b. Is an imaginary line at the junction of the aponeurosis of the tensor veli
palatini muscle and the muscular portion of the soft palate.
c. The "Ah" line.
d. All of the above.

19.Water cooled trays are usually designed for:

a.Alginate
b.Plaster
c. compound
d. None of the above

12 . The displacing forces causing instability of the denture is -are:

a) The interference and locking of the cuspes.

b) The muscles surrounding the oral cavity , and the tongue.
c))Viscous and sticky food
d) All of the obove.

THANK YOU
Good Luck
1. All of the following are types of Cingulum Rests except:

a. Ledge rest.
b. Ball rest.
c. Inverted ‘v’ rest.
d. Positive rest.
e. Answers 2 & 4.

2. A device that relieves the abutment teeth from forces generated by occlusal
function on a removable partial denture attached to these teeth is a:

a. Pull Retainer.
b. Guiding Plate.
c. Stress Breaker.
d. Positive Rest.
e. Minor Connector.

3. All of the following are tools used with the surveyor except:

a. Analyzing rods
b. Graphite marker
c. Undercut gauge
d. Sectioning Disks
e. Trimming knife

4. The best and easiest RPD path of placement (insertion): ??

a. If it approximates the perpendicular to the plane of occlusion.

b. Is when at least two rest seats can be found.
c. Is when at least one retention clasp can be placed.
d. Is when no tooth preparation is required.

5. All of the following statements about the Interim Removable partial dentures
are True except:

a. They are totally soft tissue supported.

b. They may be constructed to be immediate dentures.
c. There construction requires the use of a surveyor.
d. They may be used for diagnostic purposes in other prosthodontic problems.
e. Wrought Wire Clasps are always used in interim RPD’s.

6. All of the following are advantages of infrabulge retainers as compared to

suprabulge retainers except:

a. Disengages the undercut when loaded vertically.

b. Less tooth contact.
c. Cleaner.
d. Less bothersome to vestibular tissues.
e. Esthetically superior in most cases.
7. The type of gypsum product that should be used for fabricating the master
model (secondary model) in the RPD construction process is:

a. Type I
b. Type II
c. Type III
d. Type IV
e. Type V

8. A properly designed rest on the lingual surface of a canine is preferred more

than a properly designed rest on the incisal surface because:

a. Less leverage is exerted against the tooth by the lingual rest.

b. The enamel is thicker on the lingual surface.
c. Visibility of as well as access to the lingual surface is better.
d. The cingulum of the canine provides a natural surface for the recess.

9. When a removable partial denture is completely seated, the retentive tips

(ends) of the retentive clasp arms should be: ??

a. Passive and applying no pressure on the teeth.

b. Contacting the abutment teeth only in the suprabulge areas.
c. Resting lightly on the height of contour line on the abutment teeth.
d. Applying a definite, positive force on the abutment teeth in order to prevent
dislodgment of the removable partial denture.

10. Which of the following is false concerning 'Clasp Assemblies'?

a. The clasp assembly consists of a retentive clasp arm, a reciprocal clasp arm, a
minor connector, and rest seats.
b. Reciprocal clasp arms should rigidly contact the tooth on or above the height
of contour.
c. If significant horizontal undercuts are found on good strategic areas buccal
and lingual to a certain tooth, you can use both retentive areas buccally and
lingually by placing two retentive arms on the same tooth.
d. Clasps should be designed to permit insertion and removal without applying
excessive force.
e. Facial and proximal contours of premolars and molars most often need to be
altered to avoid failure of partials due to poor clasp design.

11. In the mesial rest, proximal plate and I-bar design (RPI); reciprocation is
achieved by:

a. Minor connectors
b. Contact areas of proximal teeth
c. Guiding plates extended around the tooth surface
d. Major connectors
e. A+C
f. A+D
12. A wrought wire clasp Can Never be used in which of the following
situations?

a. On a terminal abutment of an extension RPD.

b. As an embrasure clasp.
c. On a tooth with an indirect retainer on it.
d. All of the above
e. None of the above

13. While constructing a cobalt-chromium partial denture, there are often reasons
for carrying out a survey of the study cast with the occlusal plane tilted. All of
the following are reasons for carrying out such a survey except:

a. To achieve the best appearance

b. To improve clasp retention
c. To obtain retention from guiding surfaces
d. To avoid anatomical obstructions
e. To avoid over cutting of natural tooth abutments

For Questions 14, 15, and 16

14. Concerning the shown mandibular class II modification I case (above), which
one of the following statements regarding the drawn framework is True?

a. Both rests on teeth numbers #35 (left second premolar) and #44 (right first
premolar) are indirect retainers and function when the patient bites down on
the distal extension area.
b. If the undercut on the lower left wisdom tooth was distolingual, the best clasp
used would have been a ring clasp.
c. In order to ensure adequate retention, the tips of both the buccal and lingual
arms on the molar should be placed in undercuts.
d. The retentive arm on the lower left second premolar should be wrought wire
while those on the other teeth should be cast.
e. The indirect retainer is placed in the most suitable position, and will provide
effective indirect retention.
15. The shown major connector in the drawing above is called:

a. Swing lock
b. Lingual bar
c. Double continuous bar
d. Modified lingual plate
e. Tongue toy

16. Which of the following may cause a problem, and forbid using the major
connector you see in the drawing?

a. Large interproximal spaces have resulted from periodontal surgery.

b. The patient exhibits a high floor of the mouth.
c. There is overlapping of the anterior teeth.
d. Both a and b above.
e. All of the above

17. The surveyor makes it possible to design a removable partial denture so that
resilient and nonresilient sections go into place in the mouth as a single unit
free from interferences either tooth or soft tissue convexities.

a. True
b. False

18. A Distal Extension Partial Denture will usually have a path of insertion
produced by tilting the anterior part of the cast upwards on the surveyor table.

a. True
b. False

19. Infrabulge retainers as compared to suprabulge retainers are Less bothersome

to vestibular tissues

a. True
b. False

20. The following may increase the magnitude of a force required to displace a
clasp Except:

a. Employing a cast cobalt-cromium clasp rather than a gold clasp arm.

b. Increasing the length of the retentive arm.
c. Using a retentive clasp arm with Minimal taper.
d. increasing the thickness of section of the clasp arm.
e. None of the above.
 21. Which of the following is/are function(s) of the reciprocal clasp arm of a
removable partial denture?

a. Reciprocation
b. Stabilization
c. Bracing
d. Answers 1 & 2
e. All of the above.

22. Which of the following clasp assemblies utilize a primary rest and an auxiliary
rest?

a. Double Acker clasp

b. Ring clasp
c. Infrabulge clasp
d. combination clasp
e. Reverse action clasp

23. Which of the following statements concerning the altered cast technique are
True?

a. One of the purposes of this technique is to accurately relate the edentulous

segment to the teeth via the framework.
b. The technique helps to obtain soft tissue support to aid abutments in resisting
functional stresses.
c. This technique utilizes the metal framework to hold customized impression
trays for the edentulous areas.
d. Border molding is one of the steps that should be followed while applying the
technique.
e. All of the above statements are true.

The drawing below shows a part of a distally extended partially edentulous case. The
distal abutment was surveyed and two survey lines are shown. The continuous line
(marked A) is the first survey line. The interrupted line (marked B) is the second
survey line. Please answer the following three questions (24, 25 and 26):
 24. Which of the following statements are FALSE?

a. The first survey line is a type III survey line.

b. The second survey line was created by tilting the model anteriorly.
c. The retentive clasp arm should be placed in the undercut relative to the second
survey line.
d. The undercuts below the second survey line are related to the path of insertion.
e. Placing the retentive tip of the retentive clasp arm under both survey lines will
provide better retentive qualities and magnitudes.

25. The primary component that provides retention in the upper drawing for the
removable partial denture, relative to the path of displacement is:

a. The guiding plate.

b. The reciprocal arm
c. The retentive arm below the first survey line.
d. The retentive arm below the second survey line.
e. Cohesion and adhesion.

26. Which of the clasp assemblies listed below has the GREATEST DANGER
of torquing the distal abutment you see in the drawing, during functional
movements of the extension base?

a. Mesial rest and cast I-bar

b. Mesial rest and WW circumferential clasp
c. Mesial rest with an aker cast clasp
d. All have about the same potential danger

The drawing below represents a partially edentulous upper arch where the upper left
second premolar and first molar of the patient are missing. The replacement saddle
and teeth are outlined. Answer the following three questions (27,28, and 29):

27. which of the following statements are true:

a. Positions A and D are the best positions to place supporting rests.

b. Position A would be a clinically suitable position to place the indirect retainer
for the proposed RPD.
c. Placing a ring clasp on the upper left second molar of the patient would be a
good choice utilizing position C as a primary rest seat and position D as a
secondary auxiliary rest seat.
d. The Removable Partial Denture we are designing has a definite single path of
insertion if the guiding plates were designed properly on the proximal surfaces
of the bounding teeth.
e. We expect to have low bracing qualities for the proposed removable partial
denture.

28. The best direct Retainers (types and Positions) for the planned Removable
Partial Denture would be:

a. An Aker clasp on the upper left first premolar of the patient, an Aker clasp on
the upper left second molar and a Double Aker (Embrasure Clasp) passing
through the embrasure of the upper right second premolar and first molar.
b. A quadrilateral distribution of four Aker clasps: on the left first premolar, left
second molar, right first premolar and right second molar.
c. Two infrabulge clasps (I-Bar type) on the teeth upper left first premolar and
second molar, and two wrote wires on the upper right first premolar and
second molar.
d. Only two infrabulge clasps on the upper left first premolar and second molar.
e. Only two suprabulge clasps on the upper left first premolar and second molar.

29. The best major connector choice for the proposed Removable Partial Denture
would be:

a. An Anterior – Posterior bar

b. A broad Palatal strap
c. A palatal strap
d. A full coverage
e. A horse shoe

30. Clasp arms cast in cobalt chromium…

a. Should be positioned to engage 0.25 mm (0.01 in) of horizontal undercut.

b. Should be positioned to engage 0.5 mm (0.02 in) of horizontal undercut.
c. May engage deeper horizontal undercuts than gold clasps of similar
proportions without permanent deformation.
d. exert less loading on the abutment tooth during insertion and removal than a
cast gold clasp of similar proportions.
e. Answers 1 & 4 are correct.

31. A less length of tooth than normal may be shown if the

edentulous patient :
a. Has a short upper lip.
b. With along upper lip.
c. Has superior protrusion.
d. None of the above.
 32. The anterior plane is :
a. An imaginary line running from the external auditory meatus or trgus of the
ear to lower border of the ala of the nose.
b. An imaginary line joining the pupils of the eyes.
c. Line at right angles the medline sagittal plane of the face.
d. b+c.

33. Retention is :
a. The ability of denture to remain in contact with its supporting mucosa.
b. The force of attraction existing between denture and mucosa.
c. The ability of denture to remain stationery in relation to the surrounding muculature.
d. None of the above.

34. In selection of the teeth colour : a person of powerful build an with large teeth
usually has :
a. Pearly-white teeth.
b. Teeth of dark shade and rather pronounced colour.
c. Yellow is dominant with this person.

35. The denture base function(s) is (are) :

a. To provide a comfortable and atraumatic occlusion.
b. To assist in preparing food for deglutition.
c. To provide the retention and stability of the denture
d. All of the above.

36. A mechanical device that represents the temporomandibular joints and jaw
members to which maxillary and mandibular casts may be attached is colled :
a. facebow.
b .Articulator
c. flask
c. None of the above.

37. The occlusion rims, alone or in conjunction with central bearing devices, are used
to make :
a.Proper lip contours.
b.Proper placement of the occlusal plane.
c.Correct vertical dimension of occlusion
d.All of the above.

38. “Horizontal forces and lateral torquing of the maxillary denture can be resisted
only by adequate border seal” this Statemente is :
a.True
b.false

39. In order to border-mold the humular notches to its functional position the patient
is instructed to:

a) Perform a swallowing motion several times.

b) Open the mouth wide and close it several times.
c) To move the lower jaw to the right and left.
d) None of the above.

40. Incisive papilla:

a. Lies closer the crest to the mandibular ridge.

b.Located posterior to the maxillary central incisors at the midline.
c.Two glandular openings.
d. None of the above.

41. Base plates can be fabricated using:

a. cold curing acrylic resign
b. Light curing acrylic resign
c.Shellack
d.All of the above

42. The length of the maxillary occlusion rim should be (a

a.16mm.
b.18mm
c.20mm
d. 22mm

43. Impression compound: is used :

a) Whenever there are undercuts not suitable for rigid materials.

b) As a final wash material.
c)to modify the fit of the stock tray.
d)All of the above.

44. Impression paste (ZOE): :

a) It produces excellent surface details.

b) It can be used to obtain preiphal seal.
c) It can not be add to and re-adapted.
d)All of the above.

45. Alginate :

a.It produces excellent surface details.

b. It can be used to obtain preiphal seal.
c. It can not be add to and re-adapted.
d. None of the above.

46.Plaster:
a. It produces excellent surface details.
b. It can not be add to and re-adapted
c. It produces good surface details.
d. None of the above.
47. In Retruded position of the maxillo-mandibular relations:

a) The heads of the condyles are retruded in the glenoid fossae and the occlusal
surfaces of the teeth are separated by 2—4mm.
b) When the occlusal surfaces of the teeth make eccentric contact during function.
c)The cusps of the opposing teeth are in contact, and the heads of the condyles are
placed back in the glenoid fossae.
d)All of the obove.

48. Mental foramen :

a) Located posterior to the maxillary central incisors at the midline

b) As resorption takes place they will come to lie closer to the crest of the
mandibular ridge.
c) two glandular openings within the tissues of the posterior portion of the hard
palate on either side of the midline.
d)All of the above.

49. One constant, relatively unchanging structure on the mandibular denture bearing
surface ,contains glandular tissue, loose connective tissue, one of the primary support
areas is:

a)The crest of the residual ridge.

b) The retromolar pad.
c) The Genial tubercle.
d) The Buccal Shelf.

50. Median palatal suture

a) Located posterior to the maxillary central incisors at the midline.
b)Line of union between bilateral symmetric suture until reach soft palat.
c)compact bone that doesn’t absorb. strongest stress bearing area in mandible .
d)sensitive area for retension of mandibular denture .

51. According to the positioning of the upper canine teeth its long axis is :
a. Parallel to the vertical axis when viewed from both front or and side.
b. Slopes bucclly when viewed from the front.
c. Inclines towards the vertical axis when viewed from the front.
d. None of the above.

52. The position of the upper first premolar in setting of the teeth :
a. Both buccal and palatal cusps are in contact with the occlusal.
b. The palatal cusp is about 1mm short of, and its buccal cusps in contact with
the occlusal plane.
c. Only mesiopalatal cusps in contact with the occlusal plane.
d.None of the above.

53. In setting of teeth the position of lower first molar :

a. The mesiobuccal cusp occludes in the fossa between upper second premolar
and first molar.
b. The buccal cusp contacting the fossa between the low upper premolars.
 c. The distal and mesial cusps are about 2mm above the occlusal plane.
d. None of the above.

54. According to the positioning of the lower central incisor teeth its long axis is :
a.Parallel to the vertical axis when viewed from the front .
b.Slopes lingually when viewed from the front.
c.Inclines slightly towards the vertical axis when viewed from the front.
d.None of the above.

55. According to the positioning of the lower first premolar its long axis is:
a. Parallel to the vertical plane when viewed from the front and from the side.
b. Leans very slightly towards the midline when viewed from front.
c. Inclines to the vertical axis when viewed from front.
d. None of the above.

56. In complete denture construction in the first step of flasking :

a. The top portion or capping of the flask is poured.
b. The upper half of the flask is put in place and stone is poured to the occlusal
surface of the teeth.
c. The cast is secured to the base of the flask with stone.
d. None of the above.

57. Semi-adjustable articulator is:

a. Used primarily in full mouth reconstruction when the occlusal surfaces of the
natural teeth are to be restored.
b. The most widely used in many phases of dentistry, but are of particular
importance in complete and partial denture construction.
c. Used to make simple dental appliances, such as all plastic temporary partial
dentures.
d. None of the above.

58. The process of the carving the denture base to simulate the contour of the
natural tissues which are being replaced by the denture is called :
a. flasking
b. Packing.
c. Festooning.
d. None of the above.

59.The width of interior upper teeth may be guided by the use of the :
a. Low lip line.
b. High lip line.
c. Canine lines.
d. All of the above.

60.A wax form is developed around the border of the final impression to preserve the
shape of the periphery and to simplify making casts. This proedure is called:
a. flasking
b. Packing.
c. Festooning.
d. boxing.