Management of lower molar impaction during mixed dentition – a simple and effective mechanic

Vol. 13 – Number 49 – 2020 Case Report Page 64-67 Management of lower molar impaction during mixed dentition – a simple and effective mechanic Luciana Duarte Caldas¹ Anna Paula Nigri² Eduardo Franzotti Sant’Anna³ Abstract Lower molar ectopic eruption is very frequently found in clinical practice and redirecting its eruption path may be necessary to avoid adjacent tooth root resorption, tooth decay, periodontal problems, among others issues. However, its correction with interceptive orthodontics during the mixed dentition may be a challenge. Therefore, the aim of this paper is to present a simple, comfortable and effective manner of managing lower molar impaction during the mixed dentition. A lingual arch associated to an accessory attached to the occlusal surface of the impacted tooth and a helicoidal spring was proposed. The spring was designed in a manner it can be inserted and removed at any time for activation, not depending on patient cooperation and allowing redirection of the tooth eruption path during interceptive treatment. Descriptors: Orthodontics molar, interceptive, tooth movement techniques. ¹ Post-doctoral student and Drª. in Orthodontics – UFRJ, Me. in Dentistry – UFS, Federal University of Sergipe, Esp. in Orthodontics – UFBA ² Ma. In Orthodontics – UFRJ. ³ Prof. Associate of Orthodontics – UFRJ, Dr. and Me. In Orthodontics – UFRJ.