Treatment Effects of Occipitomental Anchorage Appliance of Maxillary Protraction Combined with Chincup Traction in Children with Class III Malocclusion

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.

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Three-dimensional changes in the temporomandibular joint after maxillary protraction in children with skeletal Class III malocclusion

Journal of Oral Science ◽

10.2334/josnusd.16-0251 ◽

2016 ◽

Vol 58 (4) ◽

pp. 501-508 ◽

Cited By ~ 1

Author(s):

Hyunju Lee ◽

Woo-Sung Son ◽

Chun Kwak ◽

Eun-Hee Kang ◽

Seong-Sik Kim ◽

...

Keyword(s):

Temporomandibular Joint ◽

Three Dimensional ◽

Class Iii ◽

Class Iii Malocclusion ◽

Skeletal Class ◽

Dimensional Changes ◽

Maxillary Protraction

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Expansion/Facemask Treatment of an Adult Class III Malocclusion

Case Reports in Dentistry ◽

10.1155/2014/270257 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6

Author(s):

Gregory W. Jackson ◽

Neal D. Kravitz

Keyword(s):

Face Mask ◽

Class Iii ◽

Class Iii Malocclusion ◽

Older Children ◽

Maxillary Expansion ◽

Viable Option ◽

Maxillary Protraction ◽

Skeletal Pattern ◽

Maxillary Deficiency ◽

The Ideal

The orthodontic treatment of class III malocclusion with a maxillary deficiency is often treated with maxillary protraction with or without expansion. Skeletal and dental changes have been documented which have combined for the protraction of the maxilla and the correction of the class III malocclusion. Concerning the ideal time to treat a developing class III malocclusion, studies have reported that, although early treatment may be the most effective, face mask therapy can provide a viable option for older children as well. But what about young adults? Can the skeletal and dental changes seen in expansion/facemask therapy in children and adolescents be demonstrated in this age group as well, possibly eliminating the need for orthodontic dental camouflage treatment or orthognathic surgery? A case report is presented of an adult class III malocclusion with a Class III skeletal pattern and maxillary retrusion. Treatment was with nonextraction, comprehensive edgewise mechanics with slow maxillary expansion with a bonded expander and protraction facemask.

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Miniscrews as an alternative for orthopedic traction of the maxilla: A case report

APOS Trends in Orthodontics ◽

10.25259/apos_16_2020 ◽

2020 ◽

Vol 10 ◽

pp. 132-138

Author(s):

Ricardo Alves de Souza ◽

Gregório Bonfim Dourado ◽

Isa Mara Andrade Oliveira Farias ◽

Matheus Melo Pithon ◽

José Rino Neto ◽

...

Keyword(s):

Case Report ◽

Resin Flow ◽

Class Iii ◽

Class Iii Malocclusion ◽

Facial Profile ◽

Maxillary Protraction ◽

Bite Plate ◽

Mandibular Incisors

The aim of this study was to report the case of a Class III prepuberal patient treated by a maxillary protraction using four miniscrews. The screws were installed between maxillary first molars and second premolars and between mandibular canines and first premolars. A 1/4˝ intermaxillary elastics were used in both sides, ligating the upper-lower screws to perform a maxillary protraction and correction of the Class III malocclusion. A bite plate made by resin flow was made on lingual surfaces of the mandibular incisors to eliminate occlusal interference. After 16 months of treatment, it was possible to see a significant improvement of patient’s facial profile, with overcorrection in overjet and preservation of the tissues and integrity of dental roots.

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INFLUENCE OF GROWTH IN TREATED CLASS III GROWING PATIENTS WITH FACE MASK THERAPY AND UNTREATED PATIENTS

Knowledge International Journal ◽

10.35120/kij3104883c ◽

2019 ◽

Vol 31 (4) ◽

pp. 883-888

Author(s):

Sofija Carceva Shalja ◽

Sandra Atanasova

Keyword(s):

Negative Impact ◽

Face Mask ◽

Treated Group ◽

Control Group ◽

Class Iii ◽

Class Iii Malocclusion ◽

Maxillary Protraction ◽

Before And After ◽

Maxillary Deficiency ◽

Observation Period

Developing Class III Malocclusion in most of the cases affects dentofacial appearance. The goal of this study is to investigate the changes in the facial appearances in treated patients withFace mask orthopedic treatment and untreated Class III patients. The sample consisted 49 patients (boys and girls),with average age of 9 years, who had a Class III Malocclusion with an anterior crossbite and a component of maxillary deficiency. 28 of them were treated with protraction Face mask- Delair mask (petit tipe), and the other 21 were presenting the control group consisted of untreated Class III Patients.In treated group pretreatment and posttreatment cephalometric radiographs from 28 patients(15 males and 13 females) were analyzed and compared with the results of cephalometric analyzes in untreated group(observation period of 1 year). Results from these study showed forward displacement of maxilla(SNA p<0.05),increasing of maxillary length(Co-A p<0.05)correction of maxillary-mandibular relationship(ANB p<0.05) in treated group while in untreated groupvalues for the parameters in the upper jaw and inter jaw relationship before and after the observation period of 1 yearshowed no statistically significant changes pointing to the negative impact of incorrect skeletal terms in Class III growing patients.Based on our findings we can concluded that in Class III patients there is a big motivation for orthodontic treatment because their dentofacial appearance deviates from sociocultural norms.Therefore, an important objective of accepting maxillary protraction treatment in Class III malocclusion is providing nonsurgical alternative in the treatment and improving the physico-social wellbeing and appearance of the patients, especially during their teenage years.

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Traumatically Induced Maxillary Retrusion—A Case Report of Orthodontic Management with the Protraction Headgear

British Journal of Orthodontics ◽

10.1179/bjo.15.1.11 ◽

1988 ◽

Vol 15 (1) ◽

pp. 11-16

Author(s):

P. A. Banks ◽

W. H. P. Bogues

Keyword(s):

Case Report ◽

Orthodontic Treatment ◽

Orthodontic Appliances ◽

Full Time ◽

Class Iii ◽

Class Iii Malocclusion ◽

Maxillary Protraction ◽

Surgical Reduction ◽

Traumatic Episode ◽

Removable Orthodontic Appliances

A 46-year-old male Caucasian with traumatically induced maxillary retrusion was referred for orthodontic treatment, eight weeks after the original fracture had occurred. Initial surgical reduction and fixation had been successful, when a second traumatic episode was encountered. This resulted in a further degree of posterior maxillary displacement, which was resistant to further surgical reduction. The resulting Class III malocclusion was treated using maxillary protraction headgear, in conjunction with removable orthodontic appliances and intermaxillary traction. Appliances were worn full time and inter-arch correction was achieved in six months. The resulting occlusion proved to be stable following the cessation of active treatment.

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Modified hyrax splint for rapid maxillary expansion in esthetically concerned patients

APOS Trends in Orthodontics ◽

10.4103/2321-1407.155846 ◽

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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