Advantages of Overdentures and Attachments Quiz

Improved occlusal stress distribution is the main advantage of overdentures.

Inadequate reduction may increase vertical dimension, which is a disadvantage of overdentures related to abutment teeth.

Overdentures are primarily indicated when there are few remaining teeth.

Overdentures are contraindicated if other prosthetic plans can provide better results.

Overdentures contribute to bone preservation by reducing trauma to soft tissues.

Mandibular bone is affected four times more than the maxillary bone. This is a key difference in bone preservation related to overdentures.

Overdenture retention primarily depends on attachments.

Excessive bony undercut can limit the path of insertion of the overdenture.

Mobile teeth indicate a potential need for overdentures as they signify reduction in unhealthy remaining periodontal teeth.

Poor oral hygiene makes overdentures unsuitable due to an increased risk of complications.

Expense and time-consuming procedures are the most significant disadvantage of overdentures.

Overdenture stability and support rely on retention through attachments.

The main function of an attachment in an overdenture is to assist in retention, ensuring the denture stays secure.

Resilient attachments allow controlled vertical and lateral movement, reducing torque on abutments.

Canines and premolars are the preferred locations for retained teeth as abutments for an overdenture.

A thimble-shaped coping used as an abutment preparation for an overdenture is designed to increase retention.

Endodontic therapy with amalgam plug is indicated for an abutment when there is a normal interarch space.

Jaw Relation Records involves mounting the upper cast on a semi-adjustable articulator using face-bow records and centric occluding relation mounting to set up teeth.

The crown root ratio, vertical space available, and amount of bone support are key factors affecting the selection of attachments in overdentures. These factors are related to the location of the abutment.

Bar attachment provides support and retention for the overdenture while simultaneously splinting the abutment teeth together.

Non-resilient or solid restorations are considered non-resilient in terms of attachment functionality.

Brushing is essential for maintaining oral hygiene with an overdenture.

Intraradicular and Extraradicular attachments are classified based on their location.

Semi-precision attachments, often fabricated by direct casting of plastic, wax, or refractory patterns, are designed for economy.