Early treatment of class II division 1 malocclusion by R- appliance
Journal Title: IP Indian Journal of Orthodontics and Dentofacial Research - Year 2017, Vol 3, Issue 2
Abstract
Purpose: The purpose of this study was to assess the dentoskeletal effects of R-appliance in treatment of patients with Class II division1 in the late mixed dentition stage. Methods and Material: The sample included twelve cases (6 females and 6 males), with average age of 10.5 years, who were treated by R-appliance for 12 months. All cases had malocclusion Class II division 1 due to mandibular retrusion. Lateral cephalograms were taken and analyzed before and after the treatment to evaluate the efficacy of the appliance. Result: statistical analysis using the SPSS version 20.0 revealed that there was highly significant increase in SNB angle by 4.14 mm (P<0.001). The highly significant increase in mandibular length was 1.8 mm, (P= 0.003). Also, the wits appraisal was found to be significantly decreased by (p= 0.001*). The vertical measurements showed significant difference with (S- GO, N – Me, Ans –Me) by (p= <0.001*). The dentoalveolar measurements were significantly decreased with overjet around 5.42mm (P <0.001*) and statically significant with (U1-L1, U1 – SN) recorded (<0.001*) for both. Conclusion: The study concluded that the treatment of Class II malocclusion due to mandibular deficiency by R-appliance was effective.
Authors and Affiliations
Ameen Mohammed Qulah, Ahmad Mohammad Hafez, Maher Abd El-Salam Fouda
Keywords
Related Articles
- EP ID EP304061
- DOI 10.18231/2455-6785.2017.0017
- Views 90
- Downloads 0
Distraction osteogenesis for management of cleft maxilla with the use of internal distraction device- A case report
Distraction osteogenesis DO has been used recently to correct cleft in the maxillary region with predictable and stable results This case report describes a casenbspwith the use of DO for rapid movement of toothbone segm...
Effects of functional therapy on hyoid bone, pharyngeal airway and tongue position in class II patients
Aim The aim of this study is to evaluate the change in the position of hyoid bone pharyngeal airway and tongue position in subjects with skeletal Class II malocclusion treated with Twin block therapyMaterials and Methods...
Evaluations of Saliva for Nickel release from Conventional Stainless Steel and Nickel free Orthodontic brackets- An Atomic Absorption Spectrophotometric (AAS) study
Introduction: Nickel, which is a potent allergen, is used as a key metallurgical ingredient for manufacturing orthodontic brackets. The study aims at extracting nickel levels in patient’s saliva at different time interva...
The changes in shear bond strength due to repeated bonding - an in vitro study
Orthodontist face a range of problems during treatment, one commonly being bracket failure. The reason for this occurrence is usually either because of the patient’s inadvertently applying improper forces to the bracket...
Secular Trend in the Onset of Menarche in Urban Population
Among all the developmental characteristics associated with the adolescence for girls, the onset of menarche is especially noteworthy and obvious. The onset of menarche in girls is a function of multiple factors and has...