scholarly journals Novel Digital Measurement Technique to Analyze the Palatine Suture Expansion after Palatine Rapid Maxillary Expansion Technique

2021 ◽  
Vol 11 (10) ◽  
pp. 962
Author(s):  
Mariano Requena Pérez ◽  
Álvaro Zubizarreta-Macho ◽  
Pedro Colino Gallardo ◽  
Alberto Albaladejo Martínez ◽  
Daniele Garcovich ◽  
...  
Keyword(s):  
Measurement Technique ◽  
Three Dimensional ◽  
Volume Measurement ◽  
Rapid Maxillary Expansion ◽  
Digital Measurement ◽  
Maxillary Expansion ◽  
Midpalatal Suture ◽  
Volumetric Assessment ◽  
Expansion Technique ◽  
Single Operator

The aim of the study was to validate a novel digital measurement method to quantify the volume of the midpalatal suture after rapid maxillary expansion (RME). Material and methods: Eight patients with maxillary skeletal transverse deficiency were submitted to palatine suture expansion using the McNamara orthodontic appliance during a period of nine months. After 30 days of treatment, all patients were exposed postoperatively to a cone-beam computed tomography (CBCT) scan. Afterwards, the scans were uploaded into the three-dimensional orthodontic-planning software to allow the volumetric assessment of the palatine suture expansion through palatine rapid maxillary expansion using a McNamara appliance. The repeatability was analyzed by repeating twice the measures by a single operator and reproducibility was analyzed by repeating three times the measures by two operators, and Gage R&R statistical analysis was performed. Results: The expansion of the midpalatal suture by means of the rapid maxillary expansion technique, in terms of digital volume measurement, showed a repeatability value of 0.09% and between the two operators a reproducibility value of 0.00% was shown. Conclusions: The novel measurement technique demonstrated a high repeatability and reproducibility rate for volume assessment of the palatine suture expansion through palatine rapid maxillary expansion technique.

scholarly journals An assessment of the maxilla after rapid maxillary expansion using cone beam computed tomography in growing children

2014 ◽  
Vol 19 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Jessica L. Woller ◽  
Ki Beom Kim ◽  
Rolf G. Behrents ◽  
Peter H. Buschang
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Three Dimensional ◽  
Rapid Maxillary Expansion ◽  
Cone Beam ◽  
Maxillary Expansion ◽  
Midpalatal Suture ◽  
Three Dimensional Images

INTRODUCTION: With the advent of cone beam computed tomography (CBCT), it is now possible to quantitatively evaluate the effects of rapid maxillary expansion (RME) on the entire maxillary complex in growing patients. OBJECTIVE: The purpose of this study is to use three-dimensional images to evaluate the displacement that occurs at the circummaxillary sutures (frontonasal, zygomaticomaxillary, intermaxillary, midpalatal, and transpalatal sutures) following rapid maxillary expansion in growing children. METHODS: The CBCT scans of 25 consecutively treated RME patients (10 male, 15 female) with mean age of 12.3 ± 2.6 years, were examined before expansion and immediately following the last activation of the expansion appliance. RESULTS: Statistically significant (P < 0.05) amounts of separation were found for the displacement of the bones of the frontonasal suture, the intermaxillary suture, the zygomaticomaxillary sutures, and the midpalatal suture. The change in angulation of the maxillary first molars due to RME was also statistically significant. There was no statistically significant displacement of the transpalatal suture. CONCLUSIONS: Rapid maxillary expansion results in significant displacement of the bones of circummaxillary sutures in growing children.

scholarly journals Comparison of Tooth- and Bone-Borne Appliances on the Stress Distributions and Displacement Patterns in the Facial Skeleton in Surgically Assisted Rapid Maxillary Expansion—A Finite Element Analysis (FEA) Study

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1152
Author(s):  
Rafał Nowak ◽  
Anna Olejnik ◽  
Hanna Gerber ◽  
Roman Frątczak ◽  
Ewa Zawiślak
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Rapid Maxillary Expansion ◽  
Stress Distributions ◽  
Maxillary Expansion ◽  
Facial Skeleton ◽  
Element Analysis ◽  
Maxillary Constriction

The aim of this study was to compare the reduced stresses according to Huber’s hypothesis and the displacement pattern in the region of the facial skeleton using a tooth- or bone-borne appliance in surgically assisted rapid maxillary expansion (SARME). In the current literature, the lack of updated reports about biomechanical effects in bone-borne appliances used in SARME is noticeable. Finite element analysis (FEA) was used for this study. Six facial skeleton models were created, five with various variants of osteotomy and one without osteotomy. Two different appliances for maxillary expansion were used for each model. The three-dimensional (3D) model of the facial skeleton was created on the basis of spiral computed tomography (CT) scans of a 32-year-old patient with maxillary constriction. The finite element model was built using ANSYS 15.0 software, in which the computations were carried out. Stress distributions and displacement values along the 3D axes were found for each osteotomy variant with the expansion of the tooth- and the bone-borne devices at a level of 0.5 mm. The investigation showed that in the case of a full osteotomy of the maxilla, as described by Bell and Epker in 1976, the method of fixing the appliance for maxillary expansion had no impact on the distribution of the reduced stresses according to Huber’s hypothesis in the facial skeleton. In the case of the bone-borne appliance, the load on the teeth, which may lead to periodontal and orthodontic complications, was eliminated. In the case of a full osteotomy of the maxilla, displacements in the buccolingual direction for all the variables of the bone-borne appliance were slightly bigger than for the tooth-borne appliance.

scholarly journals Digital radiographic evaluation of the midpalatal suture in patients submitted to rapid maxillary expansion

2013 ◽  
Vol 24 (1) ◽  
pp. 76 ◽  
Author(s):  
Maria de FátimaBatista de Melo ◽  
SauloLeonardo Sousa Melo ◽  
TiagoGorgulho Zanet ◽  
Marlene Fenyo-Pereira
Keyword(s):  
Rapid Maxillary Expansion ◽  
Radiographic Evaluation ◽  
Maxillary Expansion ◽  
Midpalatal Suture

scholarly journals Efeitos da expansão rápida de maxila na audição: revisão sistemática da literatura

2016 ◽  
Vol 21 (0) ◽  
Author(s):  
Claudine Devicari Bueno ◽  
Camila Zander Neves ◽  
Pricila Sleifer ◽  
José Renato Prietsch ◽  
Erissandra Gomes
Keyword(s):  
Hearing Loss ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Palatal Expansion Technique ◽  
Palatal Expansion ◽  
Expansion Technique

RESUMO Objetivo Verificar os efeitos provocados pela expansão rápida de maxila na audição. Estratégia de pesquisa Conduziu-se uma busca no mês de janeiro de 2016, usando as palavras-chave “hearing loss”, “hearing”, “rapid maxillary expansion” e “palatal expansion technique” nas bases de dados MEDLINE, SciELO e Bibliografia Brasileira de Odontologia (BBO). Critérios de seleção Foram selecionados artigos em inglês, português e espanhol, publicados até janeiro de 2016, sem limitação de data inicial, cuja abordagem metodológica referisse os efeitos da expansão rápida de maxila na audição. Resultados A estratégia de busca resultou na seleção de oito artigos, classificados como ensaios clínicos. Os estudos constataram que a expansão rápida de maxila realizada em crianças e/ou adolescentes melhora os limiares de audibilidade e as medidas de imitância acústica. Conclusão A expansão rápida da maxila provocou melhora na audição, apesar da diversidade e das limitações metodológicas dos estudos analisados.

scholarly journals Midpalatal suture maturation: Classification method for individual assessment before rapid maxillary expansion

2013 ◽  
Vol 144 (5) ◽  
pp. 759-769 ◽  
Author(s):  
Fernanda Angelieri ◽  
Lucia H.S. Cevidanes ◽  
Lorenzo Franchi ◽  
João R. Gonçalves ◽  
Erika Benavides ◽  
...  
Keyword(s):  
Rapid Maxillary Expansion ◽  
Classification Method ◽  
Maxillary Expansion ◽  
Midpalatal Suture ◽  
Individual Assessment

Three-dimensional evaluation of surgically assisted implant bone-borne rapid maxillary expansion: A pilot study

2007 ◽  
Vol 131 (4) ◽  
pp. S92-S99 ◽  
Author(s):  
Eve Tausche ◽  
Lars Hansen ◽  
Volker Hietschold ◽  
Manuel O. Lagravère ◽  
Winfried Harzer
Keyword(s):  
Pilot Study ◽  
Three Dimensional ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion

scholarly journals Midpalatal Suture Density Evaluation after Rapid and Slow Maxillary Expansion with a Low-Dose CT Protocol: A Retrospective Study

Medicina ◽  
2020 ◽  
Vol 56 (3) ◽  
pp. 112 ◽  
Author(s):  
Rosamaria Fastuca ◽  
Ambra Michelotti ◽  
Riccardo Nucera ◽  
Vincenzo D’Antò ◽  
Angela Militi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Low Dose ◽  
Similar Rate ◽  
Rapid Maxillary Expansion ◽  
Regions Of Interest ◽  
Maxillary Expansion ◽  
Midpalatal Suture ◽  
Ct Protocol ◽  
Density Evaluation ◽  
Low Dose Computed Tomography

Background and objectives: The aim of the present paper is to use low-dose computed tomography (CT) to evaluate the changes in the midpalatal suture density in patients treated with rapid maxillary expansion (RME) and slow maxillary expansion (SME). Materials and Methods: Thirty patients (mean age 10.2 ± 1.2 years) were retrospectively selected from the existing sample of a previous study. For each patient, a low-dose computed tomography examination was performed before appliance placement (T0) and at the end of retention (T1), seven months later. Using the collected images, the midpalatal suture density was evaluated in six regions of interest. Results: No significant differences were found between the timepoints in the rapid maxillary expansion group. Three out of six regions of interest showed significant decreases between the timepoints in the slow maxillary expansion group. No significant differences were found in comparisons between the two groups. Conclusions: The midpalatal suture density showed no significant differences when rapid maxillary expansion groups were compared to slow maxillary expansion groups, suggesting that a similar rate of suture reorganization occurs despite different expansion protocols.

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