Which mechanism compensates for occlusal wear by moving the tooth axially upward?

Get ready for the Tooth Development and Shedding Test. Utilize flashcards and multiple-choice questions with hints and explanations. Enhance your preparation and ace the exam effortlessly!

Multiple Choice

Which mechanism compensates for occlusal wear by moving the tooth axially upward?

Explanation:
When occlusal surfaces wear down, the tooth can erupt a bit more to keep contact with the opposing dentition. This upward movement is driven mainly by remodeling of the periodontal ligament, which allows controlled axial movement of the tooth within the socket as the surrounding bone adjusts. In other words, the tooth is “alarmed” to move upward through PDL-mediated eruption to compensate for wear. Root growth isn’t the mechanism for this compensation, and enamel cannot thicken after formation. Cementum deposition on the root can alter root height slightly, but it doesn’t drive the tooth to move upward.

When occlusal surfaces wear down, the tooth can erupt a bit more to keep contact with the opposing dentition. This upward movement is driven mainly by remodeling of the periodontal ligament, which allows controlled axial movement of the tooth within the socket as the surrounding bone adjusts. In other words, the tooth is “alarmed” to move upward through PDL-mediated eruption to compensate for wear.

Root growth isn’t the mechanism for this compensation, and enamel cannot thicken after formation. Cementum deposition on the root can alter root height slightly, but it doesn’t drive the tooth to move upward.

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