scholarly journals Postpubertal Effects of the Rapid Maxillary Expansion and Facial Mask versus the Removable Mandibular Retractor for the Early Treatment of Class III Malocclusion: A Study on Lateral Cephalograms

2021 ◽  
Vol 11 (18) ◽  
pp. 8393
Author(s):  
Veronica Giuntini ◽  
Matteo Camporesi ◽  
Valeria Barone ◽  
Matilde Marino Merlo ◽  
Cosimo Nardi ◽  
...  
Keyword(s):  
Early Treatment ◽  
Rapid Maxillary Expansion ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Expansion ◽  
Facial Mask ◽  
Skeletal Class ◽  
Maxillary Protraction ◽  
Time Points ◽  
Lateral Cephalograms

The aim of this study was to compare the efficacy of early treatment of Class III malocclusions with rapid maxillary expansion (RME) and facial mask (FM) versus the removable mandibular retractor (RMR) re-evaluated at a postpubertal observation on lateral cephalograms. All prepubertal patients with Class III malocclusion treated consecutively from 1986 to 2013 by means of RME/FM or RMR were analyzed. Twenty-nine patients treated with RME/FM therapy and 23 patients treated with RMR were selected. Lateral cephalograms were available at 3 time points, before treatment (T1), at the end of active treatment (T2), and at a postpubertal observation (T3). Statistical comparisons were performed with independent sample t tests or Mann–Whitney tests. During the T1–T3 interval, a significantly greater maxillary protraction (SNA +1.5 mm, p = 0.031) and significantly greater improvements in ANB and Wits appraisal (+1.9 degrees, p = 0.002, and +2.2 mm, p = 0.012, respectively) were recorded in the RME/FM group. No statistically significant changes could be found in vertical skeletal measurements. In the dentoalveolar region, the RME/FM group showed a significantly greater correction of the molar relationship (−1.5 mm, p = 0.021). Early treatment of Class III malocclusion with RME/FM protocol in comparison with RMR protocol showed a greater maxillary advancement and greater improvements in sagittal skeletal Class III relationships.

scholarly journals Alternate rapid maxillary expansion and constriction (Alt-Ramec) — A review

2021 ◽  
Vol 3 (2) ◽  
pp. 30-33
Author(s):  
Sanjana Shetty ◽  
Shilpa Pharande ◽  
Naazia Shaikh
Keyword(s):  
Efficient Method ◽  
Early Treatment ◽  
Rapid Maxillary Expansion ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Expansion ◽  
Skeletal Class ◽  
Maxillary Protraction ◽  
Opening And Closing ◽  
Dentofacial Orthopedics

Treating Class III malocclusion is a challenge for orthodontists. It is best to treat it at growing stage with Dentofacial Orthopedics. 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 protocol is an efficient method for early treatment skeletal Class III malocclusion. The objective of this review is to explain to the clinicians a modified and efficient method for treatment of skeletal Class III malocclusion in growing patients.

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

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.

Comparison of skeletal anchorage and tooth-borne maxillary protraction followed by fixed appliance in Class III malocclusion

2019 ◽  
Vol 42 (2) ◽  
pp. 193-199 ◽  
Author(s):  
Sang-Hoon Lee ◽  
Sang-Duck Koh ◽  
Dong-Hwa Chung ◽  
Jin-Woo Lee ◽  
Sang-Min Lee
Keyword(s):  
Phase Ii ◽  
Class I ◽  
Skeletal Anchorage ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Fixed Appliance ◽  
Skeletal Class ◽  
Maxillary Protraction ◽  
Lateral Cephalograms ◽  
Residual Growth

Summary Objectives The purpose of this study was to compare the results of skeletal anchorage (SAMP) and tooth- borne (TBMP) maxillary protraction followed by fixed appliance in growing skeletal Class III patients. Materials and methods Patients treated with maxillary protraction were selected and classified into two groups (SAMP: n = 19, mean age = 11.19 years; TBMP: n = 27, mean age = 11.21 years). Lateral cephalograms taken before treatment (T0), after the maxillary protraction (T1), and after the fixed appliance treatment (T2) were analysed and all variables were statistically tested to find difference between the two groups. Results Compared to the TBMP, the SAMP showed significant forward growth of maxilla (Co-A point and SN-Orbitale) and improvement in intermaxillary relationship (ANB, AB to mandible plane, and APDI) after the overall treatment (T0–T2), with no significant sagittal changes in maxilla or mandible throughout the fixed appliance treatment (T1–T2). Limitations In maxillary protraction, effects of skeletal anchorage were retrospectively compared with those of dental anchorage, not with Class I or III control. Conclusions and implications After maxillary protraction, skeletal and tooth-borne anchorage did not cause significant differences in the residual growth of maxilla throughout the phase II treatment. Orthopaedic effects with skeletal anchorage showed appropriate stability in maxilla and intermaxillary relationship even after fixed appliance treatment.

scholarly journals Changes in pharyngeal airway dimensions and hyoid bone position after maxillary protraction with different alternate rapid maxillary expansion and construction protocols: A prospective clinical study

2016 ◽  
Vol 87 (4) ◽  
pp. 519-525 ◽  
Author(s):  
Mevlut Celikoglu ◽  
Muhammet Hilmi Buyukcavus
Keyword(s):  
Hyoid Bone ◽  
Rapid Maxillary Expansion ◽  
Vertical Position ◽  
Prospective Clinical Study ◽  
Class Iii ◽  
Maxillary Expansion ◽  
Skeletal Class ◽  
Maxillary Protraction ◽  
Pharyngeal Airway ◽  
Airway Dimensions

ABSTRACT Objective: To evaluate the changes in pharyngeal airway dimensions and the position of the hyoid bone after maxillary protraction with different alternate rapid maxillary expansion and construction (Alt-RAMEC) protocols in patients with skeletal class III malocclusion as a result of maxillary retrusion. Material and Methods: The patients with skeletal class III malocclusions were consecutively divided into two groups. Group 1 consisted of 17 patients (11 boys and 6 girls, mean age 11.31 ± 1.71 years) who had the Alt-RAMEC protocol for 5 weeks, and group 2 consisted of 17 patients (10 boys and 7 girls, mean age 11.64 ± 1.24 years) who had the Alt-RAMEC procedure for 9 weeks. In this study, 4 angular and 13 linear measurements were performed to evaluate the skeletal and pharyngeal airway changes that occurred after maxillary protraction. Results: A significant increase in the maxillary growth, inhabitation of mandibular growth, and clockwise rotation of the mandible caused the improvement of the maxillo-mandibular relationship in both groups. Those changes caused a significant increase in the upper pharyngeal airway dimension (P < .01) and affected the vertical position of the hyoid bone in both groups (P < .05 and P < .01, respectively). However, changes that occurred in both groups were found to be similar for all airway variables (P > .05). Conclusion: Upper pharyngeal dimension and vertical position of the hyoid bone were affected by the maxillary protraction with different Alt-RAMEC protocols. There were no statistically significant differences between the groups.

scholarly journals Quick Correction of a Skeletal Class III Maloclussion in Primary Dentition with Face Mask Plus Rapid Maxillary Expansion Therapy

2018 ◽  
Vol 20 (2) ◽  
pp. 31-37
Author(s):  
Hilda Alejandra Bedolla-Gaxiola DDS ◽  
David Garrigós-Esparza DDS ◽  
Juan Carlos Hernández-Cabanillas DDS, MS ◽  
Miguel Ángel Rosales-Berber DDS ◽  
Amaury Pozos-Guillén DDS, PhD ◽  
...  
Keyword(s):  
Clinical Signs ◽  
Face Mask ◽  
Rapid Maxillary Expansion ◽  
Primary Dentition ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Expansion ◽  
Orthopedic Treatment ◽  
Clockwise Rotation ◽  
Skeletal Class

Skeletal Class III is a malocclusion characterized by anterior crossbite as a result of an abnormal skeletal maxillary and mandibular base discrepancy, which involves disharmony of craneofacial skeleton and profile. The preferred management for children having skeletal Class III malocclusion with retruded maxilla and/or prognathic mandible is the use of devices that encourage the growth and anterior movement of the maxilla bone and/or restrict the exessive mandible growth. The orthopedic treatment consisting of a face mask with rapid maxillary expansion (RME) produces the most dramatic results in the shortest period of time. The purpose of this article is to review a quick correction of skeletal class III maloclussion in the primary dentition through a case example with use of a face mask plus rapid maxillary expansion therapy in a 5 year-old male patient due to a combination of retruded maxilla and protruded mandible, in primary dentition, who was treated with a Petit face mask in conjunction with a bonded RME intraoral appliance added with bite blocks. The first evident occlusal outcomes were a clockwise rotation of the mandible, a positive overjet of 3 mm, a correct overbite, a canine Class I relationship, and a bilateral flush terminal plane. After discussing the present clinical case report and the related published literature, we concluded that skeletal class III malocclusions should be treated as soon as the first clinical signs of abnormal craniofacial growth are recognized, during the first years of life.

scholarly journals Modified hyrax splint for rapid maxillary expansion in esthetically concerned patients

2015 ◽  
Vol 5 ◽  
pp. 118-119
Author(s):  
Sarabjeet Singh Sandhu ◽  
Taruna Puri ◽  
Navreet Sandhu
Keyword(s):  
Orthodontic Treatment ◽  
Rapid Maxillary Expansion ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Expansion ◽  
Routine Procedure ◽  
Maxillary Protraction ◽  
Deciduous Molars ◽  
Maxillary Deficiency

The orthodontic treatment of Class III malocclusion with a maxillary deficiency is often treated with maxillary protraction either with or without maxillary expansion. The routine procedure for rapid maxillary expansion includes banding on first premolars/first deciduous molars and the permanent first molars. However in some patients who are esthetically very conscious, banding of the first premolar would not be a good esthetic option. So for such circumstances we have designed a modified hyrax splint, which does not need the first premolars to be banded.

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