Advantages of Overdentures and Attachments Quiz

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What is the primary advantage of Overdentures?

Preservation of proprioceptive response

Improved occlusal stress distribution (correct)

Retention through attachments

Patient acceptance and psychological benefits

Which of the following is a disadvantage of Overdentures related to the abutment teeth?

Caries susceptibility

Gingivitis

Bony undercuts limiting the path of insertion

Inadequate reduction may increase vertical dimension (correct)

What is the main indication for using Overdentures?

Few remaining teeth are present (correct)

Severe attrition

Congenital defects

Alternative treatment to single dentures

What is a contraindication for using Overdentures?

Any other prosthetic plan can give superior results Signup and view all the answers

How does Overdenture contribute to bone preservation?

By reducing trauma to soft tissues Signup and view all the answers

What is the impact on mandibular bone compared to maxillary bone?

Mandibular bone is affected four times more than the maxillary bone Signup and view all the answers

What does Overdenture retention depend on?

Attachments Signup and view all the answers

What problem may excessive bony undercut cause in Overdenture placement?

Limiting the path of insertion of the overdenture Signup and view all the answers

What can mobile teeth indicate as an indication for Overdentures?

Reduction of unhealthy remaining periodontal teeth Signup and view all the answers

Which condition makes Overdentures unsuitable?

Poor oral hygiene Signup and view all the answers

What is the most significant disadvantage of Overdentures?

Expense and time-consuming Signup and view all the answers

What does Overdenture stability and support depend on?

Retention through Attachments Signup and view all the answers

What is the main function of an attachment in an overdenture?

To assist in retention of the overdenture Signup and view all the answers

Which type of attachments allows some controlled vertical and lateral movement, inducing less torque on abutments?

Resilient attachments Signup and view all the answers

What is the preferred location for the retained teeth as abutments for an overdenture?

Canines and premolars Signup and view all the answers

What is the purpose of a thimble-shaped coping used as an abutment preparation for an overdenture?

To increase retention of the overdenture Signup and view all the answers

Under which condition would endodontic therapy with amalgam plug be indicated for an abutment?

Normal interarch space Signup and view all the answers

What clinical procedure involves mounting the upper cast on a semi-adjustable articulator by face-bow record of the lower cast by centric occluding relation mounting setting up of teeth?

Jaw Relation Records Signup and view all the answers

In overdenture attachments, what is the main factor affecting the selection of attachments based on crown root ratio, vertical space available, and amount of bone support?

Location of abutments Signup and view all the answers

Which type of attachment provides support and retention for the overdenture while splinting the abutment teeth together?

Bar attachment Signup and view all the answers

What type of restorations are considered non-resilient or solid in terms of attachment functionality?

'Non-resilient' restorations Signup and view all the answers

How should oral hygiene be maintained for an overdenture?

'Brushing' Signup and view all the answers

'Intraradicular' and 'Extraradicular' are classifications based on which factor?

Location Signup and view all the answers

What is the purpose of a semi-precision attachment fabricated by direct casting of plastic, wax, or refractory patterns?

Economy Signup and view all the answers