Transient functional crossbite and lip biting caused by eruption of the first permanent molar: a case report
Introduction: Tooth eruption is a physiological phenomenon that usually causes local changes. Objectives: The aim of this paper is to report unusual functional crossbite and lip biting caused by eruption of the first permanent molar. Case report: A 5-year-old girl sought dental treatment with the chief complaint of pain in the posterior region. At the clinical examination, swelling, accumulation of biofilm, local ulceration and severe traumatic tissue inflammation due to eruption of the first permanent lower left molar were observed. Furthermore, functional unilateral crossbite and lip biting were observed. Results: Local hygiene associated with chlorhexidine 0.12% and topical analgesic/anti-inflammatory ointment were prescribed for 10 and 7 days, respectively. At 1-month follow up, resolution of local inflammation was observed as well as spontaneous correction of the crossbite and lip biting. Conclusion: Because functional deviations can be caused by tooth eruption, it is important to diagnose and treat this condition to avoid these problems.
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