Assignment on
“Immediate Denture”
Submitted By:
Name: Rayhana Zannat Joly
Batch: BDS-03
Session: 2015-16
Roll No: 05
Submitted To:
Dr. Jannatul Ferdous
Lecturer, Department of Prosthodontics
Dhaka Community Medical College & Hospital
Contents
Chapter 1: Immediate Denture....................................................................................................1
1.1 Types.....................................................................................................................................1
1.2 Treatment procedures.........................................................................................................1
1.2.1 Interim immediate denture...........................................................................................1
1.2.2 Conventional immediate denture.................................................................................2
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Chapter 1: Immediate Denture
Immediate Denture is defined as, “A complete or removable partial denture constructed for
insertion immediately following removal of natural teeth.”
1.1 Types
There are two types of immediate denture-
1. Interim immediate denture
2. Conventional immediate denture.
1.2 Treatment procedures
1.2.1 Interim immediate denture
1. An alginate impression is made and duplicated. One impression is used to make duplicate
cast and another impression is used to make master cast.
2. On the refractory impression, molten wax is poured into the teeth to be extracted. After
cooling the wax, dental stone is poured on the impression to make duplicate cast. Duplicate
cast has all the anatomical structures except the teeth to be extracted, which will be in wax.
3. On the master impression, master cast is poured directly using dental stone without filling
any wax. The master cast is used for adapting the base plate, fabricating the occlusal rim and
teeth arrangement.
4. A base plate is adapted and occlusal rims are fabricated on the master cast.
5. Jaw relation is recorded. Master casts are articulated using the jaw relation records and the
artificial teeth are arranged.
6. Try-in verification is carried out.
7. After try-in, the trial denture is shifted to the refractory cast.
8. The wax pattern is flasked and dewaxed. The teeth to be extracted will be hollow in the flask
mould. Even the arranged prosthetic teeth are removed. Self-cure acrylic resin is placed into
all the teeth moulds in the flask using sprinkle-on method.
9. Heat-cure denture base resin is packed into the remaining mould space and polymerized.
10. Extraction of the teeth is done as atraumatically as possible.
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11. Insertion of the interim denture. The patient should be recalled frequently to make occlusal
adjustments and placement of tissue conditioning materials.
1.2.2 Conventional immediate denture
1. The posterior teeth are extracted and sockets are allowed to heal. This doesn’t affect the
aesthetics of the patient.
2. An alginate impression is made with the help of a stock tray. A diagnostic cast is prepared
from the impression.
3. Two layers of wax are used to block out the undercuts in the dentulous areas of the cast. A
custom tray is fabricated over this diagnostic cast. The borders of the tray are trimmed 1 mm
below the sulcus for border molding.
4. Border moulding is done using green stick compound.
5. The spacer is removed and perforations are made on the body of the tray for escape of the
impression material during impression making.
6. Light bodied elastomer is used as the impression material.
7. Occlusal rims are fabricated over a temporary denture base covering the edentulous area.
8. Posterior teeth setting and try-in are completed.
9. The anterior teeth in the master cast are broken away and trimmed up to the cervical margin
and smoothened. The ridge lap portion of the artificial teeth are trimmed and arranged on a
master cast.
10. Artificial teeth are arranged over the area where the teeth are to be extracted. The teeth
arrangement should be in harmony with the existing teeth as well as the prosthetic teeth.
11. The denture is flasked, dewaxed, packed, processed and finished.
12. During the insertion appointment, the remaining anterior teeth are to be extracted as
atraumatically as possible, preserving the soft tissues and the bone. The finished denture is
seated in the patient’s mouth.
13. If the denture does not seat properly, the tissue surface of the denture should be reduced till
the denture surface seats properly.
14. Occlusion should be refined. If the denture has poor adaptation, tissue conditioners should be
used to line the tissue surface of the denture.
