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 Cone-beam computed tomography evaluation of bone density of midpalatal suture before, after, and during retention of rapid maxillary expansion in growing patients

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 ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Bone Density ◽  
Cone Beam Computed Tomography ◽  
Rapid Maxillary Expansion ◽  
Cone Beam ◽  
Maxillary Expansion ◽  
Midpalatal Suture

scholarly journals Upper airway expansion after rapid maxillary expansion evaluated with cone beam computed tomography

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 ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Upper Airway ◽  
Rapid Maxillary Expansion ◽  
Cone Beam ◽  
Maxillary Expansion

scholarly journals Evaluation of root resorption following rapid maxillary expansion using cone-beam computed tomography

2012 ◽  
Vol 82 (3) ◽  
pp. 488-494 ◽  
Author(s):  
Asli Baysal ◽  
Irfan Karadede ◽  
Seyit Hekimoglu ◽  
Faruk Ucar ◽  
Törün Ozer ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Rapid Maxillary Expansion ◽  
Cone Beam ◽  
Maxillary Expansion

scholarly journals Midpalatal suture maturation stage assessment in adolescents and young adults using cone-beam computed tomography

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Ludy Marileidy Jimenez-Valdivia ◽  
Violeta Malpartida-Carrillo ◽  
Yalil Augusto Rodríguez-Cárdenas ◽  
Heraldo Luis Dias-Da Silveira ◽  
Luis Ernesto Arriola-Guillén
Keyword(s):  
Computed Tomography ◽  
Young Adults ◽  
Cone Beam Computed Tomography ◽  
Adolescents And Young Adults ◽  
Cone Beam ◽  
Maturation Stage ◽  
Maxillary Expansion ◽  
Cross Sectional ◽  
Midpalatal Suture ◽  
Maturation Stages

Abstract Background The aim of this study was to evaluate the midpalatal suture maturation stages in adolescents and young adults using cone-beam computed tomography (CBCT). Methods The sample comprised 200 CBCT scans of individuals aged 10 to 25 years old (95 males and 105 females) divided into three groups, adolescents (n = 48), post-adolescents (n = 52), and young adults (n = 100). The Planmeca ProMax 3D software was used for the midpalatal suture maturation stage evaluation according to Angieleri’s method, using cross-sectional axial slice. Two previously calibrated examiners analyzed the images and classified according to five different maturation stages. A, B, and C stages were considered with open midpalatal suture, and D and E were considered without open midpalatal suture. Association tests were performed using chi-square test also, and a binary logistic regression was evaluated (P < 0.05). Results The possibility to find open midpalatal suture in individuals of 10 to 15 years old was 70.8%, in subject aged 16 to 20 and 21 to 25 years old was 21.2% and 17%, respectively. Furthermore, this possibility in individuals older than 16 years was greater in males than in females. Conclusions The possibility to find open midpalatal suture in post-adolescents and young adults is greater than the orthodontists considered years ago. Furthermore, men are more likely to find midpalatal suture opening. These implications might be considered by the orthodontists when maxillary expansion is required. Besides, the ossification of the middle palatal suture is very variable, and therefore, the use of CBCT might be recommended to clarify this possibility.

scholarly journals Rapid Maxillary Expansion and Upper Airway Morphology: A Systematic Review on the Role of Cone Beam Computed Tomography

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Gabriele Di Carlo ◽  
Matteo Saccucci ◽  
Gaetano Ierardo ◽  
Valeria Luzzi ◽  
Francesca Occasi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Randomized Clinical Trials ◽  
Upper Airway ◽  
Rapid Maxillary Expansion ◽  
Cone Beam ◽  
Cochrane Library ◽  
Maxillary Expansion ◽  
Screening Process ◽  
Airway Morphology

Objective. This study aimed to investigate the quality of cone beam computed tomography (CBCT) studies evaluating the effects of rapid maxillary expansion on upper airway morphology. Materials and Methods. A database search was conducted using PubMed, Ovid, and Cochrane Library up to December 2016. Studies in which CBCT was adopted to visualize the upper airway before and after rapid maxillary expansion were included. The population target was growing patients. Methodological quality assessment was performed. Results. The screening process resulted in the exclusion of 1079 references, resulting in only 9 remaining papers that fulfilled the inclusion criteria. No randomized clinical trials were found. The quality scores ranged from 36% to 68% of the maximum achievable, and the mean quality score of the studies was 50%. No good quality studies were detected in our sample. Conclusions. Inconsistencies in the CBCT protocols utilized were detected between studies. Head posture, tongue position, and segmentation protocols were not consistent. These discrepancies were reflected in the different results obtained in the studies. A valid and consistent protocol with regard to head and tongue positioning, as well as nasal cavity volume segmentation, is required.

scholarly journals Three-Dimensional Prospective Evaluation of Piezocision-Assisted and Conventional Rapid Maxillary Expansion: A Controlled Clinical Trial

2019 ◽  
Vol 7 (1) ◽  
pp. 127-133
Author(s):  
Ahmed I. Abdul-Aziz ◽  
Wael M. Refai
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Treatment Time ◽  
Rapid Maxillary Expansion ◽  
Cone Beam ◽  
Controlled Study ◽  
Controlled Clinical Trial ◽  
Maxillary Expansion ◽  
Posterior Crossbite ◽  
Significant Difference

BACKGROUND: Piezocision-assisted orthodontics (PAO) is considered one of the modern techniques aiming at reducing the treatment time and overcoming some limitations of orthodontic treatment. The use of piezocision as an adjunct in the treatment of posterior crossbite is limited, so additional research in this area is required. AIM: To three-dimensionally compare the skeletal and dental effects produced by piezocision-assisted rapid maxillary expansion (PARME) and conventional rapid maxillary expansion (RME) using cone beam computed tomography (CBCT). MATERIALS AND METHODS: This prospective controlled study comprised 14 consecutive non-syndromic patients with posterior crossbite. In 7 patients (mean age = 16.1 ± 0.3 years), PARME was used to correct the crossbite; whereas in the remaining 7 (mean age = 15.9 ± 0.5 years), RME was done. Cone beam computed tomography (CBCT) scans were performed before expansion (T1) and 3 months later after expansion (T2) to compare the skeletal and dental effects produced by the two expansion techniques. Transverse skeletal, dentolinear, and dentoangular variables at the level of maxillary first and second premolars and maxillary first molars were measured and compared within and between groups using the appropriate statistical test. RESULTS: For the transverse skeletal variables, PARME showed a non-significant increase; whereas, RME showed a significant increase. Regarding the dentolinear measurements, a significant increase in coronal widths and an insignificant increase in apical widths was seen in PARME, whereas, the RME showed a non-significant increase for both coronal and apical widths. Non-significant decreases (protrusion of teeth) in the dentoangular measurements were seen in both groups. Between-group comparisons showed a non-significant difference except for the dentolinear coronal widths. CONCLUSION: PARME is effective in treating posterior crossbite. Because of the more dental expansion produced by PARME as compared to the conventional RME, PARME should be limited only to mild or moderate not severe forms of palatal constriction. The available evidence regarding the effectiveness of corticotomy- and/or piezocision-assisted maxillary expansion for correction of posterior crossbite is limited and inadequate.

Sign in / Sign up

Export Citation Format

Share Document