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Article: Volume 47 Number 11 Page 946 - December 2020

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  Dent Update 2020; 47: 946-949

Paediatric dentistry:  Resorption of maxillary first permanent molars by impacted maxillary second premolars: a case series

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Abstract: Although rare, resorption of the first permanent molar caused by impaction of the second premolar does occur. Three paediatric patients with impacted upper second premolars, distinct symptoms and signs of resorption are described. One case with clear resorption of the upper molar on initial presentation was managed immediately with extraction of the first permanent molar. Eruption of the impacted premolars was monitored in the other two cases, but symptom changes and sectional cone beam computed tomography (CBCT) highlighted resorption of the first permanent molars. In both cases the resorbed first permanent molars required extraction. Frequent clinical and radiographic assessment is imperative in such cases, along with consideration for the use of CBCT.

Clinical relevance: Many dental health professionals are unaware that resorption of maxillary molars induced by impacted premolars is possible, thus, this phenomenon is not monitored, resulting in misdiagnosis and avoidable patient morbidity.

Author notes: Isabelle Heliotis, Specialty Trainee in Paediatric Dentistry, Royal London Dental Hospital, Turner Street, Whitechapel, London E1 1DE, Manpreet Gakhal, Clinical Fellow in Paediatric Dentistry, Royal London Dental Hospital, Turner Street, Whitechapel, London E1 1DE and Rosemary Whatling, Consultant in Paediatric Dentistry, Royal London Dental Hospital, Turner Street, Whitechapel, London E1 1DE email: isabelle.heliotis@nhs.net

Objective: The reader should be able to evaluate cases in which resorption of the maxillary first permanent molar by impacted second premolars is possible. The reader will be able to manage such cases appropriately with consideration for the use of CBCT where necessary.

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