When a molar has no opposing tooth, it can become_______________?
Correct answer: C. Extruded
- A. Protruded
- B. Intruded
- C. Extruded
- D. Retruded
Explanation
Without an opposing tooth to provide occlusal resistance, a molar commonly moves occlusally beyond its normal plane, a process called extrusion or overeruption. Intrusion is movement into the supporting bone and is the opposite direction.
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