scholarly journals Alveolar bone changes after rapid maxillary expansion with tooth-born appliances: a systematic review

2017 ◽  
Vol 40 (3) ◽  
pp. 296-303 ◽  
Author(s):  
Antonino Lo Giudice ◽  
Ersilia Barbato ◽  
Leandro Cosentino ◽  
Claudia Maria Ferraro ◽  
Rosalia Leonardi
Keyword(s):  
Systematic Review ◽  
Alveolar Bone ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Bone Changes

scholarly journals Clinical effect on the alveolar bone of maxillary molar after rapid maxillary expansion: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Bowen Zhang ◽  
Mengqiao Wang ◽  
Fenglu Zhao ◽  
Zijie Zhang ◽  
Fulan Wei
Keyword(s):  
Systematic Review ◽  
Cortical Thickness ◽  
Alveolar Bone ◽  
Data Extraction ◽  
Meta Analysis ◽  
Rapid Maxillary Expansion ◽  
Cochrane Central Register ◽  
Maxillary Expansion ◽  
Manual Search ◽  
The Stability

Abstract Background This study assessed the effects of rapid maxillary expansion (RME) on alveolar bone cortical thickness and vertical bone level of maxillary first molar. Material and methods PubMed, Web of Science, Cochrane Central Register of Controlled Trials (CENTRAL), Scopus and a manual search in reference lists of the included studies were searched up to November 2020. The data extraction and risk of bias assessment were performed independently by two authors. Review Manager 5 was used for quantitative analysis. Results Eight studies were selected for the systematic review, and six studies were statistically selected in meta-analysis. The thickness of the distal buccal alveolar bone was significantly reduced of both left (MD 0.53;95% CI:0.15–0.90) and right (MD 0.61;95% CI:0.28–0.94) sides of the maxillary first molar after RME. The same was true for the left (MD 0.63;95% CI:0.28–0.98) and right (MD 0.63;95% CI:0.36–0.91) sides of the mesial buccal side. And the vertical distance between the cusp tip and the buccal alveolar crest increased significantly after RME (SMD − 0.92;95% CI: -1.20–0.64). However, the study of palatal cortical thickness of maxillary first molar needs more clinical trials because of its high heterogeneity (left: I2 = 92%; right: I2 = 86%). Conclusions According to current studies, RME can reduce the buccal cortical thickness of maxillary first molars and increase vertical bone loss. More research is needed to determine the stability of the results. However, it is advisable to evaluate the alveolar bone before treatment.

scholarly journals Buccal alveolar bone changes following rapid maxillary expansion and fixed appliance therapy

2020 ◽  
Author(s):  
Adam Sperl ◽  
Laurence Gaalaas ◽  
John Beyer ◽  
Thorsten Grünheid
Keyword(s):  
Computed Tomography ◽  
Alveolar Bone ◽  
Treatment Time ◽  
Rapid Maxillary Expansion ◽  
Cone Beam ◽  
Maxillary Expansion ◽  
Bone Thickness ◽  
Fixed Appliance ◽  
Computed Tomography Scans ◽  
Bone Changes

ABSTRACT Objectives To assess factors that may be associated with buccal bone changes adjacent to maxillary first molars after rapid maxillary expansion (RME) and fixed appliance therapy. Materials and Methods Pretreatment (T1) and posttreatment (T2) cone-beam computed tomography scans were obtained from 45 patients treated with RME and preadjusted edgewise appliances. Buccal alveolar bone thickness was measured adjacent to the mesiobuccal root of the maxillary first molar 4 mm, 6 mm, and 8 mm apical to the cementoenamel junction, and anatomic defects were recorded. Paired and unpaired t-tests were used to compare alveolar bone thickness at T1 and T2 and to determine whether teeth with posttreatment anatomic defects had thinner initial bone. Correlation analyses were used to examine relationships between buccal alveolar bone thickness changes and amount of expansion, initial bone thickness, age at T1, postexpansion retention time, and treatment time. Results There was a statistically significant reduction in buccal alveolar bone thickness from T1 to T2. Approximately half (47.7%) of the teeth developed anatomic defects from T1 to T2. These teeth had significantly thinner buccal bone at T1. Reduction in alveolar bone thickness was correlated with only one tested variable: initial bone thickness. Conclusions RME and fixed-appliance therapy can be associated with significant reduction in buccal alveolar bone thickness and an increase in anatomic defects adjacent to the expander anchor teeth. Anchor teeth with greater initial buccal bone thickness have less reduction in buccal bone thickness and are less likely to develop posttreatment anatomic defects of buccal bone.

Calculations used for assessment of rapid maxillary expansion

ORL ro ◽  
2016 ◽  
Vol 1 (1) ◽  
pp. 24-26
Author(s):  
Ruxandra Bartok ◽  
Bogdan Dimitriu Dimitriu ◽  
Constantin Vârlan ◽  
Radu Stanciu ◽  
Georgiana Moldoveanu ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Elasticity Modulus ◽  
Rapid Maxillary Expansion ◽  
Laboratory Animals ◽  
Maxillary Expansion ◽  
Literature Reference ◽  
Bone Changes ◽  
Upper Jaw ◽  
Materials Used

Rapid maxillary expansion is defined as the release of medio-palatine suture using an orthopedic forces. The role of this procedure is to expand  the upper jaw in order to achieve the  broadening of the upper arch. This study was initiated to quantify the effects of disjunction and post- treatment bone changes, after an adequate contention which lasted for three weeks. This study  is  carried on laboratory animals (common breed rabbit) to determine tensile strength and the elasticity modulus of  biological materials  used in orthdodontics. The results of the study are consistent with those reported in the literature reference.  

scholarly journals The Effect of Low-Level Laser Therapy on Bone Healing After Rapid Maxillary Expansion: A Systematic Review

2018 ◽  
Vol 36 (2) ◽  
pp. 61-71 ◽  
Author(s):  
Foteini G. Skondra ◽  
Despina Koletsi ◽  
Theodore Eliades ◽  
Eleftherios Terry R. Farmakis
Keyword(s):  
Systematic Review ◽  
Laser Therapy ◽  
Bone Healing ◽  
Rapid Maxillary Expansion ◽  
Low Level Laser Therapy ◽  
Maxillary Expansion ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser

Rapid Maxillary Expansion after Secondary Alveolar Bone Grafting in Patients with Alveolar Cleft

2009 ◽  
Vol 46 (3) ◽  
pp. 331-338 ◽  
Author(s):  
Omar Gabriel da Silva Filho ◽  
Elaine Boiani ◽  
Arlete de Oliveira Cavassan ◽  
Milton Santamaria
Keyword(s):  
Bone Grafting ◽  
Alveolar Bone ◽  
Qualitative Evaluation ◽  
Rapid Maxillary Expansion ◽  
Dental Arch ◽  
Sample Population ◽  
Maxillary Expansion ◽  
Alveolar Bone Grafting ◽  
Before And After ◽  
Secondary Alveolar Bone Grafting

Objective: To test the hypothesis that it is possible to perform rapid maxillary expansion (RME) after alveolar bone grafting in patients with clefts of the lip and palate (CLP) without compromising the final result of the bone graft. Design: Occlusal and periapical radiographs of the grafted area of 17 unilateral and 11 bilateral patients with CLP (n  =  28) were obtained before and after RME. Setting and sample population: Hospital for Rehabilitation of Craniofacial Anomalies (HRAC), University of São Paulo. Twenty-eighty patients with CLP who had undergone RME. Interventions: RME was performed in patients with CLP who had already undergone RME before secondary bone grafting but with relapse of the maxillary dental arch constriction, as well as in patients with CLP who had never undergone expansion before bone grafting. Outcome measure: Qualitative evaluation in occlusal and periapical radiographs after alveolar bone grafting. Results: Findings showed opening of the midpalatal suture in 42.8% of patients in this study. Regardless of the success rate of RME, the alveolar bone grafting was not affected when the procedures were inverted. Conclusion: The hypothesis was accepted. RME can be performed after secondary alveolar bone grafting without affecting it.

Rapid maxillary expansion for pediatric obstructive sleep apnea: A systematic review and meta-analysis

2016 ◽  
Vol 127 (7) ◽  
pp. 1712-1719 ◽  
Author(s):  
Macario Camacho ◽  
Edward T. Chang ◽  
Sungjin A. Song ◽  
Jose Abdullatif ◽  
Soroush Zaghi ◽  
...  
Keyword(s):  
Systematic Review ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Meta Analysis ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Obstructive Sleep
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