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Related to lip biting: cheek biting
See: border, edge, margin
References in periodicals archive ?
Most of the oral mucoceles occur due to trauma and lip biting habits.
Patient also had a positive history lower lip biting habit with its frequency increased by the presences of swelling.
As Kareem began to exhibit a number of nervous behaviours including eye twitching, lip biting and bed-wetting, Farah turned to a psychiatrist for help.