Dental Implants Prosthetic Restoration 2

Question 1

An implant overdenture retained by locator attachments provides which primary advantage over a conventional full denture?

Accepted Answer

Significantly improved retention and stability with minimal bone resorption prevention

Answer

Locator-retained overdentures dramatically improve retention and functional stability compared to conventional dentures while preserving remaining alveolar bone.

Question 2

The McGill consensus (2002) recommended that the minimum standard of care for edentulous mandibular patients should be:

Accepted Answer

A two-implant retained mandibular overdenture

Answer

The McGill and York consensus statements established that a two-implant mandibular overdenture should be the minimum standard for edentulous patients.

Question 3

In the All-on-4 concept, the two posterior implants are tilted at approximately what angle?

Accepted Answer

45 degrees

Answer

Posterior implants in the All-on-4 protocol are tilted at approximately 45 degrees to avoid anatomical structures (sinus/nerve) while maximizing bone contact and reducing cantilever length.

Question 4

What is the purpose of a 'pink porcelain' or 'pink acrylic' component in full-arch implant prostheses?

Accepted Answer

It replaces lost gingival and bone tissue for esthetic and phonetic support

Answer

Pink prosthetic material mimics gum tissue to replace volumetric loss of soft and hard tissue that occurs after tooth loss and resorption.

Question 5

Implant-supported crowns should NOT have which type of occlusal contact?

Accepted Answer

Heavy working-side interferences during lateral excursion

Answer

Working-side interferences on implant crowns create potentially destructive lateral forces that the implant bone interface cannot absorb with a periodontal ligament shock absorber.

Dental Implants Practice Test

Dental Implants Practice Test

Dental Implants Prosthetic Restoration 2