ABP Implant Dentistry 5

Question 1

Which technique is used to evaluate the volumetric stability of soft tissue grafts used for peri-implant tissue augmentation?

Accepted Answer

Superimposition of intraoral scans at baseline and follow-up

Answer

Resonance frequency analysis

Answer

Digital subtraction radiography

Answer

Probing depth measurements at six points

Question 2

Screw-retained implant restorations are preferred over cement-retained restorations primarily because they:

Accepted Answer

Eliminate the risk of residual cement causing peri-implant disease

Answer

Provide better esthetics in the anterior zone

Answer

Distribute occlusal forces more evenly

Answer

Allow use of zirconia abutments in all cases

Question 3

The Summers osteotome sinus floor elevation technique relies on which principle to elevate the sinus membrane?

Accepted Answer

Controlled infracture of the sinus floor bone using blunt instruments

Answer

Hydraulic pressure from saline injection

Answer

Creation of a lateral window with piezoelectric surgery

Answer

Balloon inflation after antrostomy

Question 4

A patient presents with implant mobility 18 months after placement. The most appropriate initial management is:

Accepted Answer

Remove the implant immediately

Answer

Re-tighten the abutment screw and monitor

Answer

Splint the implant to adjacent teeth

Answer

Perform laser decontamination of the implant surface

Question 5

According to the 2017 World Workshop classification, peri-implant mucositis is characterized by:

Accepted Answer

Bleeding on probing without radiographic bone loss

Answer

Bleeding on probing with radiographic bone loss

Answer

Suppuration and probing depth >6 mm

Answer

Implant mobility with bone loss >3 mm

Question 6

Which of the following systemic conditions is considered an ABSOLUTE contraindication to implant placement?

Accepted Answer

Recent myocardial infarction (within 6 months) with ongoing anticoagulation

Answer

Well-controlled type 1 diabetes

Answer

Osteoporosis managed with oral bisphosphonates for 2 years

Answer

History of radiation to the head and neck (>50 Gy) treated >2 years ago

Question 7

The socket shield technique (partial root retention) in immediate implant placement is designed to preserve:

Accepted Answer

The buccal bundle bone by maintaining the root's PDL support

Answer

The periodontal ligament fibers on the palatal root surface

Answer

Pulpal vascularity to stimulate ridge healing

Answer

The interdental papilla height through root structure