Complete Denture Construction

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Questions and Answers

What is a primary benefit of restoring normal jaw separation in denture patients?

It allows for a wider variety of food choices.
It prevents abnormal chewing habits and preserves the temporomandibular joints. (correct)
It enhances the aesthetic appearance of the patient.
It eliminates the need for regular dental check-ups.

Which step is considered a clinical step in complete denture construction?

Preliminary impressions (correct)
Setting up of artificial teeth
Pouring study casts
Construction of special trays

What does the try-in stage of complete denture construction primarily involve?

Final adjustments to the artificial teeth setup.
Testing the fit and comfort of the denture with the patient. (correct)
Creating jaw relation records.
Flasking and packing of acrylic resin.

Which laboratory step occurs directly after pouring of master casts?

Construction of occlusion blocks (B) Signup and view all the answers

What is one of the last steps in the complete denture construction process?

Finishing and polishing (A) Signup and view all the answers

What does the polished surface of a complete denture include?

Labial, buccal, and lingual surfaces (A) Signup and view all the answers

Why is mastication important in denture patients?

It enhances the chewing efficiency and digestion. (C) Signup and view all the answers

How does tooth loss affect facial appearance?

It leads to a senile appearance due to loss of support. (D) Signup and view all the answers

What is the function of the occlusal surface in a denture?

To make contact with opposing dentition. (B) Signup and view all the answers

Which surface of a complete denture is referred to as the fitting surface?

Basal surface (B) Signup and view all the answers

What is one of the effects of properly constructed dentures on speech?

They help correct speech defects that result from tooth loss. (B) Signup and view all the answers

What happens to the alveolar processes after tooth loss?

They experience varying degrees of resorption. (B) Signup and view all the answers

What role does chewing play in relation to natural teeth?

It enhances the enjoyment of eating. (A) Signup and view all the answers

What is the primary focus of prosthodontics?

Restoration and maintenance of oral function (C) Signup and view all the answers

Which term describes a condition where all natural teeth are present in the oral cavity?

Dentulous (C) Signup and view all the answers

What characterizes a complete denture?

It replaces the entire natural dentition and associated structures. (C) Signup and view all the answers

What is the denture base?

The part that rests on the tissue foundation (B) Signup and view all the answers

Which part of the denture is related to the cheek?

Buccal flange (B) Signup and view all the answers

Which type of denture is constructed prior to the extraction of teeth?

Immediate denture (D) Signup and view all the answers

What distinguishes a partial denture from a complete denture?

A partial denture can be fixed or removable (C) Signup and view all the answers

What is true about a complete edentulous condition?

All natural teeth are absent (A) Signup and view all the answers

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Study Notes

Surfaces of a Complete Denture

Polished Surface: The outer surface of the denture that faces the lips, cheeks, tongue and palate.
Occlusal Surface: The surface of the teeth that comes into contact with opposing teeth.
Fitting Surface (Basal Surface): The surface of the denture that fits on the supporting tissues.

Objectives of Complete Denture Construction

Restore masticatory efficiency: Chewing is essential for proper digestion and overall health.
Restore facial appearance: Lost teeth affect facial contours and lead to premature aging. Dentures help restore normal facial dimensions and support the lips and cheeks.
Correct speech defects: Teeth are crucial for speech production. Dentures ensure proper sound formation.
Preserve remaining natural tissues: Losing teeth leads to alveolar bone resorption. Dentures help minimize bone loss and maintain healthy tissues.

Terminology

Prosthetics: The science and practice of creating and using artificial replacements for missing body parts.
Prosthesis: An artificial replacement for a missing body part.
Prosthodontics: The dental specialty focused on replacing missing teeth and supporting structures with dentures, crowns, and other appliances.
Dentulous: Having all natural teeth present.
Edentulous: Having no natural teeth present.
Partially Edentulous: Missing some of the natural teeth.
Completely Edentulous: Missing all of the natural teeth.
Complete Denture: An artificial replacement for all teeth and supporting structures.
Partial Denture: An artificial replacement for some teeth and supporting structures.
Immediate Denture: A denture placed immediately after tooth extraction.

Components (Parts) of a Complete Denture

Denture base: Supports the artificial teeth and rests on gum tissue.
Denture border: The edge of the denture base where it meets the gum tissue.
Denture Flanges: Extensions of the denture base that extend from the neck of the teeth to the borders of the denture.
- Buccal flange: Faces the cheek.
- Labial flange: Faces the lips.
- Lingual flange: Faces the tongue (mandibular denture).
- Palatal portion: Faces the palate (maxillary denture).

Introduction to Complete Denture Prosthodontics

The loss of teeth affects the temporomandibular joints, leading to abnormal jaw movements and chewing habits.
Dentures contribute to patient satisfaction and comfort by restoring function, aesthetics, and improving overall oral health.

Steps of Complete Denture Construction

Clinical steps (done in the clinic with the patient):
- Examination and Diagnosis
- Preliminary impressions
- Final Impression
- Jaw relation registration
- Artificial teeth selection
- Try-in stage
- Denture delivery and patient instructions
- Inspection and after care.
Laboratory steps:
- Pouring study casts
- Construction of special trays
- Pouring of master casts
- Construction of occlusion blocks
- Mounting of the casts on an articulator
- Setting up of artificial teeth
- Waxing-up
- Facebow index
- Flasking
- Wax elimination
- Packing of acrylic resin
- Curing
- Deflasking
- Laboratory remounting
- Finishing and polishing.
The success of complete dentures depends on the precise execution of both clinical and laboratory steps.