A Study of Class II Division 1 Malocclusions Treated by the Andresen Appliance

1981 ◽  
Vol 8 (3) ◽  
pp. 159-163 ◽  
Author(s):  
A. M. Cohen
Keyword(s):  
Class Ii ◽  
Rate Of Growth ◽  
Facial Height ◽  
Division 1 ◽  
Treatment Changes ◽  
Class Ii Division 1

A study was carried out of Class II, Division 1 cases treated by the Andresen appliance. Results were determined in terms of overjet reduction and the reasons for failure were recorded for those cases who did not complete their treatment. Growth and treatment changes were assessed cephalometrically. It was found that those cases showing the more complete overjet reduction also tended to show more growth in facial height and a faster rate of growth in facial height when compared with the less successfully treated cases.

scholarly journals Soft tissue treatment changes with fixed functional appliances and with maxillary premolar extraction in Class II division 1 malocclusion patients

2017 ◽  
Vol 40 (2) ◽  
pp. 214-222 ◽  
Author(s):  
Guilherme Janson ◽  
Nuria Castello Branco ◽  
Aron Aliaga-Del Castillo ◽  
José Fernando Castanha Henriques ◽  
Juliana Fernandes de Morais
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Premolar Extraction ◽  
Division 1 ◽  
Functional Appliances ◽  
Treatment Changes ◽  
Class Ii Division 1

scholarly journals Evaluation of Lower Anterior Facial Height and Incisors Vertical Dimension after Class II Division 1 Treatment

2020 ◽  
Vol 7 (01) ◽  
pp. 4686-4690
Author(s):  
Elih Sayutia ◽  
Deni Sumantri Latif
Keyword(s):  
Orthodontic Treatment ◽  
Dimensional Change ◽  
Class Ii ◽  
Wilcoxon Test ◽  
Maxillary Incisor ◽  
P Value ◽  
Facial Height ◽  
Significant Difference ◽  
Division 1 ◽  
Class Ii Division 1

Introduction: Orthodontic treatment of class II division 1 malocclusion by extracting the maxillary first premolar causes vertical dimensional change is still a matter of debate. The purpose of this research was to determine the vertical changes of the lower anterior facial height and maxillary incisor vertical dimensions in class II division 1 malocclusion after orthodontic treatment with Edgewise technique. Materials and Methods: This study was conducted on the cephalometry of 24 patients before and after orthodontic treatment with inclusion criteria as follows: Angle Class II division 1  malocclusion, aged 18-30 years old. Measurements were taken for the lower anterior facial height (ANS - Me) and maxillary incisor vertical dimensions by performing an Upper Anterior Dental Height (UADH). Data analysis used was the Wilcoxon test for unpaired data. Results: The result of p-value = 0.195 > 0.05 for lower anterior face height showed no significant difference; and p-value = 0.878 > 0.05 for UADH also showed no significant difference. Conclusion: Orthodontic treatment for class II division 1 malocclusion with the removal of two premolars does not change the lower anterior facial height and maxillary incisor vertical dimensions.

Orthodontic treatment changes of chin position in Class II Division 1 patients

2006 ◽  
Vol 130 (6) ◽  
pp. 732-741 ◽  
Author(s):  
Mark B. LaHaye ◽  
Peter H. Buschang ◽  
R.G. “Wick” Alexander ◽  
Jim C. Boley
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Division 1 ◽  
Treatment Changes ◽  
Class Ii Division 1

Soft-tissue treatment changes in Class II Division 1 malocclusion with and without extraction of maxillary premolars

2007 ◽  
Vol 132 (6) ◽  
pp. 729.e1-729.e8 ◽  
Author(s):  
Guilherme Janson ◽  
Acácio Fuziy ◽  
Marcos Roberto de Freitas ◽  
José Fernando Castanha Henriques ◽  
Renato Rodrigues de Almeida
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Division 1 ◽  
Maxillary Premolars ◽  
Treatment Changes ◽  
Class Ii Division 1

scholarly journals Skeletal and dental changes after lower posterior tooth extrusion in Class II Division 1 deep bite short-faced growing patients

2019 ◽  
Vol 9 ◽  
pp. 165-171
Author(s):  
Pornpan Jariyavithayakul ◽  
Chairat Charoemratrote
Keyword(s):  
Class Ii ◽  
Treated Group ◽  
Deep Bite ◽  
Fixed Appliance ◽  
Posterior Tooth ◽  
Facial Height ◽  
Mandibular Plane ◽  
Division 1 ◽  
Tooth Extrusion ◽  
Class Ii Division 1

Objectives: The objectives of the study were to investigate the effect of lower posterior tooth extrusion on skeletal and dental changes in Class II division 1 deep bite short-faced growing patients. Materials and Methods: Twenty-two growing patients with Class II/1 malocclusion deep bite/short-face were treated using a pre-adjusted edgewise-fixed appliance. The curve of Spee (COS) was leveled by rectangular wire and posterior vertical elastic. Two consecutive lateral cephalometric radiographs were collected before and after treatment. Changes from the cephalometric analysis were compared with 22 untreated matched subjects during the observation period with independent t-test. Results: The reduction of deep bite from the COS in the treated group was 2.83 mm which was obtained by a greater amount of posterior extrusion (1.37 mm), than anterior intrusion (0.58 mm), and lower facial height significantly increased (3.70 mm). The treated group showed significant forward mandibular position from SNB (1.36°), Pg-Nperp (1.53 mm), and the skeletal relationship improved (ANB = −0.88°). The mandibular plane angles (SN-MP and FMA) showed no significant changes during treatment. Dental changes revealed significant decreases in overjet and overbite, whereas the position and inclination of the upper and lower incisors were not significantly different. Conclusions: The increase of lower facial height in Class II deep bite short-faced growing patients was successfully accomplished by lower posterior tooth extrusion with the use of rectangular wire with posterior vertical elastic. The mandibular plane angle did not change during treatment. Class II skeletal relationship improved by the forward position of the mandible in hypo- and normodivergent pattern subjects.

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