Thomas Mücke1, Anja Löffel2, Anastasios Kanatas3, Sandy Karnezi3, Majeed Rana4, Andreas Fichter2, Stephan Haarmann2, Klaus-Dietrich Wolff2, Denys John Loeffelbein2. 1. Department of Oral and Maxillofacial Surgery, Technische Universität München, Klinikum Rechts der Isar, Germany. Electronic address: th.mucke@gmx.de. 2. Department of Oral and Maxillofacial Surgery, Technische Universität München, Klinikum Rechts der Isar, Germany. 3. Leeds Teaching Hospitals and St James Institute of Oncology, Leeds General Infirmary, LS1 3EX, UK. 4. Department of Oral and Maxillofacial Surgery, Medizinische Hochschule Hannover, Germany.
Abstract
INTRODUCTION: The etiology of deep bite is multifactorial. One of the causes is increased muscular activity. This makes the treatment of deep bite malocclusions difficult and often results in relapse in many cases. In this work we compared patients with surgical orthognathic treatment only and surgical orthognathic treatment with additional injections of botulinum toxin after mandibular advancement for class II division 2 malocclusion. MATERIAL AND METHODS: This is a prospective study. Adult patients were assessed pretreatment (T1), posttreatment (T2), and long-term after 1 year (T3). In total, 32 patients (mean age, 30.7 years; 23 women and 9 men) reached the study end point (T3); 24 patients were treated without botulinum toxin and 8 patients received preoperative injections of botulinum toxin. RESULTS: Significant differences between both groups were observed, with a more stable result for the experimental group treated with botulinum toxin. DISCUSSION: In a selective group of adult patients with a class II division II incisor relationship and with a class II skeletal base, botulinum toxin injections can effectively prevent relapse. This may present an alternative to a conventional myotomy.
INTRODUCTION: The etiology of deep bite is multifactorial. One of the causes is increased muscular activity. This makes the treatment of deep bite malocclusions difficult and often results in relapse in many cases. In this work we compared patients with surgical orthognathic treatment only and surgical orthognathic treatment with additional injections of botulinum toxin after mandibular advancement for class II division 2 malocclusion. MATERIAL AND METHODS: This is a prospective study. Adult patients were assessed pretreatment (T1), posttreatment (T2), and long-term after 1 year (T3). In total, 32 patients (mean age, 30.7 years; 23 women and 9 men) reached the study end point (T3); 24 patients were treated without botulinum toxin and 8 patients received preoperative injections of botulinum toxin. RESULTS: Significant differences between both groups were observed, with a more stable result for the experimental group treated with botulinum toxin. DISCUSSION: In a selective group of adult patients with a class II division II incisor relationship and with a class II skeletal base, botulinum toxin injections can effectively prevent relapse. This may present an alternative to a conventional myotomy.
Authors: Ricardo Grillo; Alexandre M Borba; Ana Paula C B Lima; Marcos C Pitta; Regiane Veronesi; Claudio R P Jodas Journal: J Taibah Univ Med Sci Date: 2021-09-04
Authors: Maxim Van den Bempt; Shankeeth Vinayahalingam; Michael D Han; Stefaan J Bergé; Tong Xi Journal: Orthod Craniofac Res Date: 2021-06-23 Impact factor: 2.563