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oral pathology - 3 Questions
Hyperacusis (increased sensitivity to sound) occurs due to facial nerve damage affecting the stapedius muscle. The stapedius muscle normally dampens excessive sound transmission by stiffening the stapes. When the facial nerve is damaged, paralysis of the stapedius muscle leads to hyperacusis. The malleus and incus are not directly involved in this protective mechanism.
Lamina dura is lost or partially lost in hyperparathyroidism.
Radiodensity can be increased by increasing target-film distance.
MCQ