Erratum to: Evaluation of masticatory muscle activity in patients with unilateral posterior crossbite before and after rapid maxillary expansion

(1) Background: To investigate condylar position in subjects with functional posterior crossbite comparing findings before and after rapid maxillary expansion (RME) treatment through 3D analysis; (2) Methods: Thirty-two Caucasian patients (14 males, mean age 8 y 8 m ± 1 y 2 m; 18 females mean age 8 y 2 m ± 1 y 4 m) with functional posterior crossbite (FPXB) diagnosis underwent rapid palatal expansion with a Haas appliance banded on second deciduous upper molars. Patients’ underwent CBCT scans before rapid palatal expansion (T0) and after 12 months (T1). The images were processed through 3D slicer software; (3) Results: The condylar position changes between T1 and T0 among the crossbite and non-crossbite sides were not statistically significant, except for the transversal axis. At T1, the condyles moved forward (y axis) and laterally (x axis), they also moved downward (z axis) but not significantly; (4) Conclusions: Condilar position in growing patients with functional posterior crossbite did not change significantly after rapid maxillary expansion.

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Rapid maxillary expansion in the treatment of the functional posterior crossbite: joint noise and electromyographic activity analysis

Revista de Odontologia da UNESP ◽

10.1590/1807-2577.03819 ◽

2019 ◽

Vol 48 ◽

Author(s):

Diego Jesus Brandariz PIMENTEL ◽

Laís Valencise MAGRI ◽

Melissa de Oliveira MELCHIOR ◽

Guido Artemio MARAÑÓN-VÁSQUEZ ◽

Mirian Aiko Nakane MATSUMOTO ◽

...

Keyword(s):

Masticatory Muscles ◽

Rapid Maxillary Expansion ◽

Electromyographic Activity ◽

Maxillary Expansion ◽

Posterior Crossbite ◽

Stomatognathic System ◽

End Of Treatment ◽

Before And After ◽

Electromyographic Analysis ◽

Level Of Significance

Abstract Introduction The rapid maxillary expansion (RME) reduces the risk of developing structural and functional disorders in the stomatognathic system. Objective To examine the effects of the RME as a treatment for the posterior crossbite, related with the electromyographic activity of the masticatory muscles and the TMJ noises in a population of children. Material and method 13 girls and 7 boys, regardless of the type of malocclusion, with a mean age of 9 years old (± 3), were treated with RME. The electrovibratography analyzed the TMJ noise, and the electromyography analyzed the masticatory muscles before treatment (T0) and after three months of a short-term follow-up (T1). The comparisons of the affected and unaffected sides by the crossbite were performed using Mann-Whitney’s test, and to compare data before and after treatment the Wilcoxon’s test was used (level of significance: 5%). Result No significant differences were found in the parameters of joint noise in comparison to the sides affected and unaffected by the crossbite, in both T0 and T1 (p>0.05); only the side without the crossbite observed decrease in the peak amplitude of the joint noises after treatment. In the static electromyographic analysis, inter-side differences were observed before and after treatment, since the deliberate unilateral chewing showed greater asymmetry activity in T0 for both sides, which has been corrected after treatment, improving the functional chewing. Conclusion The proposed treatment did not lead to the occurrence of joint noises and improved the functional pattern of electromyographic activity during chewing at the end of treatment.

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Assessment of Immediate Skeletal Changes after Alternate Rapid Maxillary Expansion and Constriction – A Case Report

Journal of Evolution of Medical and Dental Sciences ◽

10.14260/jemds/2021/604 ◽

2021 ◽

Vol 10 (34) ◽

pp. 2954-2959

Author(s):

Shilpa Venkatesh Pharande

Keyword(s):

Case Report ◽

Rapid Maxillary Expansion ◽

Class Iii ◽

Class Iii Malocclusion ◽

Maxillary Expansion ◽

Skeletal Class ◽

Posterior Crossbite ◽

Skeletal Changes ◽

Before And After ◽

Opening And Closing

The Alt-RAMEC protocol was introduced by Liou in the year 2005. It allows for sutural mobilisation by opening and closing the RME screw for 7-9 weeks. Maxillary protraction after the use of Alt-Ramec (alternate rapid maxillary expansion and contraction) protocol is an efficient method for early treatment of skeletal Class III malocclusion. This case report shows the results of using a hyrax bonded maxillary expander with the Alt-RAMEC protocol to treat a maxillary hypoplasia Class III malocclusion. A 12-year-old patient with skeletal class III malocclusion with anterior as well as the unilateral posterior crossbite was treated using this protocol. CBCT scans were taken before and after expansion. These CBCT scans were used for assessing and analysing the skeletal changes that have occurred after using the AltRamec protocol. The objective of this case report is to assess skeletal changes after using the Alt-RAMEC protocol.

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Evaluation of masticatory muscle activity in complete denture wearers before and after prosthetic treatment

Journal of Stomatology ◽

10.5114/jos.2019.86982 ◽

2019 ◽

Vol 72 (2) ◽

pp. 43-51

Author(s):

Joanna Kuć ◽

Teresa Sierpińska ◽

Maria Gołębiewska

Keyword(s):

Muscle Activity ◽

Complete Denture ◽

Masticatory Muscle ◽

Before And After ◽

Masticatory Muscle Activity

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Periodontal clinical evaluation before and after surgically assisted rapid maxillary expansion

Dental Press Journal of Orthodontics ◽

10.1590/2177-6709.23.1.079-086.oar ◽

2018 ◽

Vol 23 (1) ◽

pp. 79-86 ◽

Cited By ~ 1

Author(s):

Michelle Sendyk ◽

Wilson Roberto Sendyk ◽

Débora Pallos ◽

Letícia Cristina Cidreira Boaro ◽

João Batista de Paiva ◽

...

Keyword(s):

Gingival Recession ◽

Rapid Maxillary Expansion ◽

Central Incisor ◽

Maxillary Expansion ◽

Clinical Attachment Level ◽

Posterior Crossbite ◽

Attached Gingiva ◽

Before And After ◽

The Right ◽

Attachment Level

ABSTRACT Introduction: The surgically assisted rapid maxillary expansion is a procedure that reduces the resistance of the sutures correcting the posterior crossbite in adults. Objective: The aim of this study was to evaluate the periodontal status of 17 adults submitted to this procedure. Methods: The clinical attachment level (CAL), gingival recession, attached gingiva and bleeding were evaluated in maxillary first premolars and molars, central and lateral incisors of right and left sides before surgery, 5 days and 6 months after. Means, standard deviation, medians, minimum and maximum values were compared among the evaluations using the Friedman and McNemar tests. Results: There was a statistically significant increase in CAL in the right central incisor, right and left premolars and right and left molars. There was a statistically significant increase in gingival recession in the right and left premolars and molars. The amount of attached gingiva significantly decreased in right premolars and right and left molars. There was increase in bleeding in most of the teeth. Conclusion: Results indicated that the surgically assisted rapid maxillary expansion might cause alterations in periodontal tissue.

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