OBJECTIVE: This study aims to compare bone-borne (BB) surgically assisted rapid maxillary expansion (SARME) to tooth-borne (TB) SARME with regard to dentoskeletal effects. PATIENTS AND METHODS: Measurements were performed on 3D scanned cast models of 34 patients preoperatively and 20.5 +/- 1.34 months post-expansion. Secondary variables were pterygomaxillary disjunction or not; bimaxillary osteotomy or not and patient age. RESULTS: BB SARME without pterygomaxillary disjunction on patients <20 years led to a symmetric increase in transverse widening; however, simultaneously, to more dental tipping (canines/second molars) and to the biggest overall attachment loss (frontal teeth/premolars), especially, after the performance of bimaxillary osteotomy. TB SARME led to an asymmetric decrease in transverse widening and to more dental tipping (premolars/first molars). CONCLUSION: In long-term effects, BB SARME led to a symmetric increase in transverse widening; however, at the price of frontal attachment loss, resulting from the initial asymmetric, but bigger, overall transverse widening, the initial major segmental rotation and the necessary orthodontics for tooth arch alignment before and after bimaxillary osteotomy.
OBJECTIVE: This study aims to compare bone-borne (BB) surgically assisted rapid maxillary expansion (SARME) to tooth-borne (TB) SARME with regard to dentoskeletal effects. PATIENTS AND METHODS: Measurements were performed on 3D scanned cast models of 34 patients preoperatively and 20.5 +/- 1.34 months post-expansion. Secondary variables were pterygomaxillary disjunction or not; bimaxillary osteotomy or not and patient age. RESULTS:BB SARME without pterygomaxillary disjunction on patients <20 years led to a symmetric increase in transverse widening; however, simultaneously, to more dental tipping (canines/second molars) and to the biggest overall attachment loss (frontal teeth/premolars), especially, after the performance of bimaxillary osteotomy. TB SARME led to an asymmetric decrease in transverse widening and to more dental tipping (premolars/first molars). CONCLUSION: In long-term effects, BB SARME led to a symmetric increase in transverse widening; however, at the price of frontal attachment loss, resulting from the initial asymmetric, but bigger, overall transverse widening, the initial major segmental rotation and the necessary orthodontics for tooth arch alignment before and after bimaxillary osteotomy.
Authors: Eve Tausche; Lars Hansen; Volker Hietschold; Manuel O Lagravère; Winfried Harzer Journal: Am J Orthod Dentofacial Orthop Date: 2007-04 Impact factor: 2.650
Authors: Rania M Nada; Bram van Loon; Thomas J J Maal; Stefaan J Bergé; Yehya A Mostafa; Anne Marie Kuijpers-Jagtman; Jan G J H Schols Journal: Clin Oral Investig Date: 2013-02-02 Impact factor: 3.573
Authors: Felix Kunz; Christian Linz; Gregor Baunach; Hartmut Böhm; Philipp Meyer-Marcotty Journal: J Orofac Orthop Date: 2016-07-18 Impact factor: 1.938