ABP Occlusion and Biomechanics Flashcards
6 cards from real ABP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ABP Occlusion and Biomechanics flashcards as text
Which tooth movement pattern places the greatest lateral stress on the periodontium, predisposing to angular bone defects?
Answer: Lateral/tipping forces creating tension and pressure zones
Lateral and tipping forces create alternating zones of tension and pressure within the PDL, leading to angular (infrabony) bone loss patterns when combined with inflammation.
In the concept of 'jiggling' occlusal forces, how does this type of loading affect a periodontally compromised tooth?
Answer: Causes irreversible tooth mobility and accelerated bone loss
Jiggling forces (alternating pressures from multiple directions) on a compromised periodontium cause progressive bone resorption and increasing mobility that does not resolve without intervention.
What is the primary purpose of occlusal splint therapy prior to definitive periodontal treatment?
Answer: Diagnose and stabilize occlusal relationships before irreversible treatment
Occlusal splints allow clinicians to diagnose centric relation discrepancies and distribute forces evenly before committing to irreversible occlusal adjustments or restorations.
Bruxism is considered a risk factor in periodontal prognosis primarily because it does which of the following?
Answer: Increases parafunctional forces that can accelerate bone loss in inflamed tissues
Bruxism generates excessive parafunctional forces that, when superimposed on inflamed periodontal tissues, can significantly accelerate alveolar bone destruction.
When evaluating furcation involvement radiographically, which projection provides the most accurate view of mandibular molar furcations?
Answer: CBCT cross-sectional view
CBCT provides three-dimensional visualization of furcation morphology and bone levels that cannot be accurately assessed with two-dimensional conventional radiographs.
The Glickman co-destruction theory proposes that occlusal trauma affects the 'zone of irritation' by doing which of the following?
Answer: Altering the pathway of inflammation extension from the gingiva into the supporting bone
Glickman proposed that occlusal trauma alters the transseptal fiber pathway so that gingival inflammation extends through vascular channels into the alveolar crest, creating angular bone defects.