Benefits of Overdentures

Which of the following is the primary benefit of using an overdenture compared to a conventional complete denture?

• Lower cost of treatment

• Improved speech clarity

• Preservation of alveolar bone

• Faster fabrication process

• Elimination of the need for follow-up

Which is the most common attachment system used in implant-retained overdentures?

• Bar attachments

• Magnetic attachments

• Ball attachments

• crew-retained abutments

• Locator attachments

What is the primary purpose of overdenture abutment teeth?

• To provide occlusal support

• To improve denture esthetics

• To preserve residual ridge integrity

• To act as a guide for denture insertion

• To eliminate the need for prosthetic relines

What is the minimum number of implants typically recommended for a mandibular implant-supported overdenture?

• one

• two

• three

• four

• six

Which factor most significantly influences the stability of a maxillary overdenture?

• Number of implants placed

• Type of attachment system used

• Adequate palatal coverage

• Patient's age

• Material of the overdenture base

Which type of tooth preparation is commonly performed for abutment teeth in a tooth-supported overdenture?

• Full coverage crown preparation

• Reduction of coronal height and placement of a dome-shaped restoration

• Minimal occlusal reduction without restoration

• Root amputation and gingivectomy

• Complete extraction of the root

What is the primary reason for placing a coping over the retained roots in a tooth-supported overdenture?

• To improve esthetics

• To enhance retention of the denture

• To prevent caries and provide structural support to the roots

• To reduce the cost of the prosthesis

• To make the denture lighter

Which type of periodontal therapy is essential before fabricating a tooth-supported overdenture?

• Complete root canal therapy of all teeth

• Gingival grafting to improve esthetics

• Scaling of abutment teeth

• Flap surgery for all remaining teeth

• Extraction of all non-abutment teeth

What is the main contraindication for a tooth-supported overdenture?
.

• Presence of a shallow vestibule

• Moderate alveolar bone loss

• Poor periodontal health of potential abutment teeth

• History of dental caries

• Limited financial resources

The following is the disadvantage for tooth-supported overdentures except

• Risk of caries on the retained abutments

• Difficulty in prosthesis fabrication

• Increased cost of treatment compared to conventional dentures

• Reduced patient satisfaction compared to conventional dentures

• Poor retention of the prosthesis