Australian Dental Council (ADC) Practice Test

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What is the periodontal response when a newly placed restoration interferes with occlusion?

Thickening of the periodontal membrane

When a newly placed restoration interferes with occlusion, the periodontal response typically involves a thickening of the periodontal membrane. This thickening occurs as a protective response to the abnormal forces exerted on the teeth due to the malocclusion. The periodontal ligament adapts to changes in occlusal forces, and an increase in the thickness of the ligament can be a sign of this adaptive process.

Over time, if the occlusal interference persists, it may lead to further complications such as inflammation or resorption; however, the immediate response of the periodontal structures is to become thicker to better withstand the altered forces. This adaptive thickening is part of the body's way of maintaining stability and function within the teeth and periodontal tissues under new conditions.

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Atrophy of the periodontal ligament

Resorption of alveolar bone

Inflammation of gum tissue

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