Effects of the pendulum appliance, cervical headgear, and 2 premolar extractions followed by fixed appliances in patients with Class II malocclusion

2009 ◽  
Vol 136 (6) ◽  
pp. 833-842 ◽  
Author(s):  
Renata Rodrigues de Almeida-Pedrin ◽  
José Fernando Castanha Henriques ◽  
Renato Rodrigues de Almeida ◽  
Marcio Rodrigues de Almeida ◽  
James A. McNamara
2020 ◽  
Vol 158 (3) ◽  
pp. 363-370
Author(s):  
Sorileé Carlina Ramon Pujols ◽  
Cinthya Quagliato Nogueira ◽  
Rachelle Simões Reis ◽  
Camilla Fiedler Fonçatti ◽  
José Fernando Castanha Henriques ◽  
...  

2014 ◽  
Vol 08 (02) ◽  
pp. 276-280 ◽  
Author(s):  
Mevlut Celikoglu ◽  
Tuba Unal ◽  
Mehmet Bayram ◽  
Celal Candirli

ABSTRACTBased on our literature search, we found that the use of miniplate anchorage with Forsus fatigue-resistance device (FRD) has not yet been reported. Therefore, the aim of the present case report was to present the treatment of a patient with skeletal Class II malocclusion with mandibular retrusion using Forsus FRD with miniplate anchorage. Fixed appliances with 0.022-inch slots were attached to the maxillary teeth and after 8 months of the leveling and alignment of the upper arch, 0.019 × 0.025-inch stainless steel archwire was inserted and cinched back. Two weeks after the placement of the miniplates bilaterally at the symphysis of the mandible, Forsus FRD was adjusted to the miniplates with a 35-mm length of rod chosen. Nine months after the skeletal anchored Forsus worn, Class I canine and molar relations were achieved and overjet was eliminated.


2019 ◽  
Vol 89 (6) ◽  
pp. 839-846 ◽  
Author(s):  
Hera Kim-Berman ◽  
James A. McNamara ◽  
Joel P. Lints ◽  
Craig McMullen ◽  
Lorenzo Franchi

ABSTRACT Objectives: To determine the treatment effects produced in Class II patients by the Carriere® Motion 3D™ appliance (CMA) followed by full fixed appliances (FFA). Materials and Methods: This retrospective study evaluated 34 adolescents at three time points: T1 (pretreatment), T2 (removal of CMA), and T3 (posttreatment). The comparison group comprised 22 untreated Class II subjects analyzed at T1 and T3. Serial cephalograms were traced and digitized, and 12 skeletal and 6 dentoalveolar measures were compared. Results: Phase I with CMA lasted 5.2 ± 2.8 months; phase II with FFA lasted 13.0 ± 4.2 months. CMA treatment restricted the forward movement of the maxilla at point A. There was minimal effect on the sagittal position of the chin at pogonion. The Wits appraisal improved toward Class I by 2.1 mm during the CMA phase but not during FFA. Lower anterior facial height increased twice as much in the treatment group as in controls. A clockwise rotation (3.9°) of the functional occlusal plane in the treatment group occurred during phase I; a substantial rebound (−3.6°) occurred during phase II. Overjet and overbite improved during treatment, as did molar relationship; the lower incisors proclined (4.2°). Conclusions: The CMA appliance is an efficient and effective way of correcting Class II malocclusion. The changes were mainly dentoalveolar in nature, but some skeletal changes also occurred, particularly in the sagittal position of the maxilla and in the vertical dimension.


2013 ◽  
Vol 18 (2) ◽  
pp. 42-54 ◽  
Author(s):  
Darwin Vaz de Lima ◽  
Karina Maria Salvatore de Freitas ◽  
Marcos Roberto de Freitas ◽  
Guilherme Janson ◽  
José Fernando Castanha Henriques ◽  
...  

OBJECTIVE: This study aimed to evaluate the stability of molar relationship after non-extraction treatment of Class II malocclusion. METHODS: The sample comprised 39 subjects (16 females, 23 males) with initial Class II malocclusion treated with no extractions, using fixed appliances. Mean age at the beginning of treatment was 12.94 years, at the end of treatment was 15.14 years and at post-retention stage was 21.18 years. Mean treatment time was 2.19 years and mean time of post-treatment evaluation was 6.12 years. To verify the influence of the severity of initial Class II molar relationship in stability of molar relationship, the sample was divided into two groups, one presenting a ½-cusp or ¾-cusp Class II molar relationship, and the other with full-cusp Class II molar relationship. In dental casts from initial, final and postretention stages, molar, first and second premolars and canine relationships were measured. Data obtained were analyzed by dependent ANOVA, Tukey and Pearson's correlation tests, as well as independent t test between the two groups divided by severity of initial molar relationship. RESULTS: There was a non-statistically significant 0.12 mm relapse of molar relationship. The initial severity of Class II molar relationship was not correlated to relapse in the post-retention period. When compared, the two groups showed no difference in relapse of molar relationship. CONCLUSION: It was concluded that correction of Class II molar relationship is stable and initial severity does not influence relapse of molar relationship.


2009 ◽  
Vol 31 (3) ◽  
pp. 333-340 ◽  
Author(s):  
C. R. M. Pinzan-Vercelino ◽  
G. Janson ◽  
A. Pinzan ◽  
R. R. de Almeida ◽  
M. R. de Freitas ◽  
...  

2017 ◽  
Vol 51 (4) ◽  
pp. 250-257
Author(s):  
Monika Koul ◽  
Ayushi Singla ◽  
Anil Singla ◽  
Vivek Mahajan ◽  
Harupinder Singh Jaj ◽  
...  

Author(s):  
Lorenz Moser ◽  
Enrica Di Lorenzo ◽  
Marco Serafin ◽  
Giuliano Maino ◽  
Ute Schneider-Moser ◽  
...  

Introduction: Problem solving in Class II malocclusion treatment performed with premolars extractions or distalizing techniques in relation to the profile modification. Aim: To cephalometrically compare soft tissue changes produced either by maxillary premolar extraction, tooth-borne Pendulum appliance or bone-borne MGBM appliance. Materials and Methods: Both pre- (T1) and post-treatment (T2) lateral cephalograms of 89 skeletal Class II patients (36 M, 53 F), treated during pubertal growth spurt, were retrospectively selected. Three groups were formed based on the therapy performed: 30 patients had been treated with maxillary first premolars extraction (U4), 31 patients with a conventional tooth-borne distalizing with Pendulum appliance (PA), and 28 patients with a skeletally anchored distalizing appliance (MGBM). Soft tissue was analyzed comparing upper (UL) and lower (LL) lip’s points with regard to True Vertical Line (TVL) and Esthetic plane (E-plane). Skeletal and dental values have been recorded in order to cephalometrically compare ΔT2-T1 changes among groups and to correlate dental and skeletal changes to profile modifications. One-way ANOVA was employed to compare groups at T1. Paired sample t-tests were employed to assess significant intra- and intergroup differences between T2 and T1. Significance level was set at 0.05 Results: UL and LL showed a slight but not significant retrusion relative to TVL in all three groups. UL and LL distances to E-plane were not statistically significant among U4, PA, and MGBM groups. Independently of the treatment, UL was tangent to TVL in all groups. No statistically significant differences have been shown in skeletal records. Significant differences were recorded in Overjet among U4 than PA and MGBM groups. Conclusions: Class II malocclusion treatment with maxillary first premolar extraction, conventional or skeletal distalization did not significantly affect the profile producing similar changes in the soft tissue.


Sign in / Sign up

Export Citation Format

Share Document