ABP ABP Occlusion and Biomechanics

Question 1

In periodontal co-destruction theory, what is the primary role of occlusal trauma in the presence of plaque-induced periodontitis?

Accepted Answer

Acts as a co-destructive factor accelerating bone loss in already-inflamed tissue

Answer

Occlusal trauma acts as a co-destructive factor that accelerates alveolar bone loss when combined with existing plaque-induced inflammation, but does not initiate pocket formation alone.

Question 2

What term describes the adaptive widening of the periodontal ligament space without attachment loss in response to increased occlusal forces?

Accepted Answer

Adaptive remodeling

Answer

Adaptive remodeling refers to the reversible widening of the PDL space that occurs when the periodontium accommodates increased occlusal loads without inflammatory bone loss.

Question 3

Which clinical sign is MOST indicative of primary occlusal trauma in a periodontally healthy patient?

Accepted Answer

Pathologic tooth mobility with normal bone levels radiographically

Answer

Primary occlusal trauma manifests as tooth mobility from excessive forces on a periodontally healthy tooth with normal or slightly widened PDL space but no attachment loss.

Question 4

Fremitus is best defined as which of the following clinical findings?

Accepted Answer

Vibration or movement of a tooth felt by the examiner's finger during occlusal contact

Answer

Fremitus is the palpable or visible movement of a tooth when the patient taps or moves through occlusal contacts, indicating excessive occlusal forces on that tooth.

Question 5

According to the 2017 World Workshop classification, occlusal trauma is categorized under which major disease group?

Accepted Answer

Traumatic occlusal forces and occlusal trauma

Answer

The 2017 classification system places traumatic occlusal forces, including primary and secondary occlusal trauma, under a distinct category of periodontal conditions not caused by plaque.

(ABP) American Board of Periodontology Practice Test

(ABP) American Board of Periodontology Practice Test

ABP ABP Occlusion and Biomechanics