Classification of midpalatal suture opening after surgically assisted rapid maxillary expansion using computed tomography

Author(s):  
Max Domingues Pereira ◽  
Gabriela Pereira Ribeiro Prado ◽  
Meire Maman Fracher Abramoff ◽  
Antonio Carlos Aloise ◽  
Lydia Masako Ferreira
Medicina ◽  
2020 ◽  
Vol 56 (3) ◽  
pp. 112 ◽  
Author(s):  
Rosamaria Fastuca ◽  
Ambra Michelotti ◽  
Riccardo Nucera ◽  
Vincenzo D’Antò ◽  
Angela Militi ◽  
...  

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.


2017 ◽  
Vol 6 (1) ◽  
pp. 15-19
Author(s):  
Renato Bigliazzi ◽  
Aline de Oliveira Silva Magalhães ◽  
Paulo Enrique Magalhães ◽  
André Pinheiro de Magalhães Bertoz ◽  
Kurt Faltin ◽  
...  

2008 ◽  
Vol 19 (2) ◽  
pp. 433-438 ◽  
Author(s):  
Patricia P. Loddi ◽  
Max D. Pereira ◽  
Angela B. Wolosker ◽  
Claudia T. Hino ◽  
Tessie M. Kreniski ◽  
...  

2014 ◽  
Vol 19 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Jessica L. Woller ◽  
Ki Beom Kim ◽  
Rolf G. Behrents ◽  
Peter H. Buschang

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.


2012 ◽  
Vol 82 (3) ◽  
pp. 458-463 ◽  
Author(s):  
Annelise Nazareth Cunha Ribeiro ◽  
João Batista de Paiva ◽  
José Rino-Neto ◽  
Edson Illipronti-Filho ◽  
Tarcila Trivino ◽  
...  

2013 ◽  
Vol 24 (1) ◽  
pp. 76 ◽  
Author(s):  
Maria de FátimaBatista de Melo ◽  
SauloLeonardo Sousa Melo ◽  
TiagoGorgulho Zanet ◽  
Marlene Fenyo-Pereira

1996 ◽  
Vol 33 (5) ◽  
pp. 445-449 ◽  
Author(s):  
Takafumi Susami ◽  
Takayuki Kuroda ◽  
Teruo Amagasa

Some adult cleft palate patients show severe maxillary transverse contraction and posterior crossbite. This case report demonstrates successful surgical-orthodontic treatment of such a patient. Surgically assisted rapid maxillary expansion (SA-RME) was completed prior to comprehensive orthodontic treatment. The osteotomy was performed on both the buccal and lingual aspects of the posterior maxillary alveolus. A Hyrax-type maxillary-expansion appliance was used, and the screw (0.2 mm, one quarter turn) was turned two or three times per day. Comprehensive orthodontic treatment was initiated after extraction of the mandibular first premolars and four third molars. The maxillary lateral incisors were also extracted after active orthodontic treatment. The amount of expansion achieved using SA-RME was greater at the posterior than at the anterior maxilla. Midpalatal suture opening occurred. After orthodontic treatment, occlusal stability was satisfactory. This case demonstrates the effectiveness of SA-RME in adult cleft palate patients with severe posterior crossbite.


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