Abrasion can occur from toothbrushing. Toothbrush abrasion usually appears as a V-shaped notch in the cementum apical to the cementoenamel junction
A) First statement is true, second statement is false.
B) First statement is false, second statement is true.
C) Both statements are true.
D) Both statements are false.
C
Explanation: C) When toothbrush abrasion damage does occur, it usually appears as a V-shaped notch in the cementum apical to the cementoenamel junction and is termed toothbrush abrasion.
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