Teeth that erupt without an opposing antagonist are referred to as____________?
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Answer: C. Supra erupted
Explanation
Teeth that erupt without an opposing antagonist in the opposite arch are termed supra-erupted. They continue to erupt beyond the normal occlusal plane due to the absence of opposing contact. This compensatory movement occurs as the periodontal ligament remodels to accommodate continuous eruption. Normal dental occlusion relies on balanced contact between maxillary and mandibular opposing teeth. Loss of a functional antagonist removes the mechanical barrier restraining continuous tooth eruption. Supra-eruption can disrupt the occlusal plane and complicate future prosthetic replacement therapy.
Dental practitioners must replace missing teeth promptly to prevent adjacent drifting and supra-eruption. Excessive eruption often requires orthodontic intrusion or reshaping before placing crown restorations. Patients missing opposing molars frequently notice the opposing tooth touching their gum tissue. Option A describes a stationary tooth maintaining normal stable occlusal relationships with antagonists. Option B uses an informal descriptive term rather than the precise dental term supra-erupted. Option D refers to primary teeth failing to emerge into the oral cavity, also known as submerged.
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