14. The function regulator in the treatment of Class III malocclusion

2015 ◽  
pp. 167-185
Keyword(s):  
Class Iii ◽  
Class Iii Malocclusion ◽  
Function Regulator

Treatment effectiveness of Fränkel function regulator on the Class III malocclusion: A systematic review and meta-analysis

2014 ◽  
Vol 146 (2) ◽  
pp. 143-154 ◽  
Author(s):  
Xianrui Yang ◽  
Chunjie Li ◽  
Ding Bai ◽  
Naichuan Su ◽  
Tian Chen ◽  
...  
Keyword(s):  
Systematic Review ◽  
Treatment Effectiveness ◽  
Meta Analysis ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Function Regulator

Treatment effectiveness of the Fränkel function regulator on Class III malocclusion

2015 ◽  
Vol 147 (1) ◽  
pp. 9
Author(s):  
Bo-Xi Yan ◽  
Xue-Dong Wang ◽  
Yan-Heng Zhou
Keyword(s):  
Treatment Effectiveness ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Function Regulator

Changes in Soft Tissue Profile during the Treatment of Class III Malocclusion

1987 ◽  
Vol 14 (4) ◽  
pp. 243-249 ◽  
Author(s):  
W. J. S. Kerr ◽  
T. R. Ten Have
Keyword(s):  
Soft Tissue ◽  
Control Group ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Profound Change ◽  
Soft Tissue Profile ◽  
Before And After ◽  
The Mean ◽  
Function Regulator ◽  
Removable Appliances

The changes in soft tissue profile for 66 Angle's Class III malocclusion subjects treated either with the Function Regulator, or Upper Removable Appliances, or the Edgewise Appliance were assessed by comparing cephalometric radiographs taken before and after correction of the anterior occlusion. While the mean soft tissue profile in all groups improved in relation to a Control Group, the F R. III Group demonstrated the most profound change.

The effects of the Fränkel's function regulator on the Class III malocclusion

1994 ◽  
Vol 105 (6) ◽  
pp. 561-567 ◽  
Author(s):  
Mustafa Ülgen ◽  
Sönmez Firatli
Keyword(s):  
Class Iii ◽  
Class Iii Malocclusion ◽  
Function Regulator

Dental Arch and Cephalometric Changes Following Treatment for Class III Malocclusion by Means of the Function Regulator (FR-3) Appliance

2005 ◽  
Vol 66 (2) ◽  
pp. 135-147 ◽  
Author(s):  
Michael Kalavritinos ◽  
Moschos A. Papadopoulos ◽  
Athanasios Nasiopoulos
Keyword(s):  
Dental Arch ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Function Regulator ◽  
Cephalometric Changes

scholarly journals A Comparative Assessment of Orthodontic Treatment Outcomes of Mild Skeletal Class III Malocclusion Between Facemask and Facemask in Combination with a Miniscrew For Anchorage in Growing Patients: A Single-center, Prospective Randomized Controlled trial

2019 ◽  
Vol 90 (1) ◽  
pp. 3-12 ◽  
Author(s):  
Masahiro Seiryu ◽  
Hiroto Ida ◽  
Atsushi Mayama ◽  
Satoshi Sasaki ◽  
Shutaro Sasaki ◽  
...  
Keyword(s):  
Treatment Outcomes ◽  
Controlled Trial ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Randomized Controlled ◽  
Group 12 ◽  
Prospective Randomized Controlled Trial ◽  
Group A ◽  
Negative Side Effects

ABSTRACT Objectives To investigate the hypothesis that there is difference in the treatment outcomes of milder skeletal Class III malocclusion between facemask and facemask in combination with a miniscrew in growing patients. Materials and Methods Patients were randomly divided into two groups. In one group, the patients were treated with facemask therapy (FM group: 12 males, eight females, average age: 10 years, 5 months ± 1 year, 8 months). In the other group, patients were treated with facemask therapy along with a miniscrew (FM+MS group: 12 males, seven females, average age: 11 years, 1 month ± 1 year, 3 months). A lingual arch with hooks was fixed to the maxillary arch in both groups and a protractive force of 500 g was applied from the facemask to the hooks. The patients were instructed to use the facemask for 12 hours per day. In the FM+MS group, a miniscrew was inserted into the palate and fixed to the lingual arch. Results Mobility and loosening of the miniscrew were not observed during treatment. Lateral cephalometric analysis showed that SNA, SN-ANS, and ANB values were significantly increased in the FM+MS group compared with those for the FM group (SNA, 1.1° SN-ANS, 1.3° ANB, 0.8°). Increase in proclination of maxillary incisors was significantly greater in the FM group than in the FM+MS group (U1-SN, 5.0°). Conclusions During treatment of milder skeletal Class III malocclusion, facemask therapy along with a miniscrew exhibits fewer negative side effects and delivers orthopedic forces more efficiently to the maxillary complex than facemask therapy alone.

scholarly journals Skeletal Class III Malocclusion with Lateral Open Bite and Facial Asymmetry Treated with Asymmetric Lower Molar Extraction and Lingual Appliance: A Case Report

2021 ◽  
Vol 18 (10) ◽  
pp. 5381
Author(s):  
Vo Truong Nhu Ngoc ◽  
Nguyen Thi Thu Phuong ◽  
Nguyen Viet Anh
Keyword(s):  
Case Report ◽  
Open Bite ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Facial Esthetics ◽  
Lingual Appliance ◽  
Lower Incisors ◽  
Mandibular Incisors ◽  
Molar Extraction

A skeletal Class III malocclusion with open bite tendency is considered very difficult to treat orthodontically without surgery. This case report describes the lingual orthodontic treatment of an adult skeletal Class III patient with mandibular deviation to the left side, lateral open bite, unilateral posterior crossbite, zero overbite and negative overjet. The lower incisors were already retroclined to compensate with the skeletal discrepancy. The patient was treated by asymmetric molar extraction in the mandibular arch to retract the lower incisors and correct the dental midline, with the help of intermaxillary elastics. Lingual appliance was used with over-torqued lower anterior teeth’s brackets to control the torque of mandibular incisors. After a 30-month treatment, satisfactory smile and facial esthetics and good occlusion was achieved. A 12-month follow-up confirmed that the outcome was stable. Asymmetric molar extraction could be a viable option to retract mandibular incisors in Class III malocclusion with lower dental midline deviation.

scholarly journals Analysis of MYO1H Gene Polymorphism in Skeletal Class-III Malocclusion Due to Mandibular Prognathism

2021 ◽  
Author(s):  
Anjana Atteeri ◽  
Praveen Kumar Neela ◽  
Pavan Kumar Mamillapalli ◽  
Vasu M. Sesham ◽  
Sreekanth Keesara ◽  
...  
Keyword(s):  
Local Population ◽  
Research Work ◽  
Control Group ◽  
Study Group ◽  
Genome Wide Association Studies ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mandibular Prognathism ◽  
Skeletal Class ◽  
Increased Risk

Abstract Background Mandibular prognathism (MP) is a craniofacial deformity resulting from the combined effects of environmental and genetic factors. Although various linkage and genome-wide association studies for mandibular prognathism have identified multiple strongly associated regions and genes, the causal genes and variants responsible for the deformity remained ambiguous. Aim This research work was aimed to study the association between polymorphism rs10850110 of the MYO1H gene and skeletal class-III malocclusion in our local population. Materials and Methods Thirty patients with skeletal class III due to mandibular prognathism in the study group and 30 patients with skeletal class I in the control group were selected for this study. These patients were from both sexes and above age 10 years. Based on the cephalometric values, patients were categorized into study and control groups. SNB (angle between sella, nasion and point B at nasion) greater than 82 degrees with an ANB (angle between point A, nasion and point B at nasion) of less than 0 degrees in the study group and ANB (angle between point A, nasion and point B at nasion) of 2 to 4 degrees in the control group were categorized. The polymorphism (rs10850110) of the MYO1H gene was genotyped using polymerase chain reaction and restriction fragment length polymorphism. Associations were tested with SNP exact test using SNPstats software. Results The single-nucleotide polymorphism rs10850110 showed a statistically significant association with mandibular prognathism. The G allele of marker rs10850110 (5′ of myosin1H - MYO1H) was overrepresented when compared with the “A” allele in mandibular prognathism cases (p < 0.0001), and this was very significant. Conclusion These results suggest that the rs10850110 polymorphism of the MYO1H gene is associated with an increased risk for mandibular prognathism.

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