Print ISSN: 2204-1990

Online ISSN: 1323-6903

Keywords : class II malocclusion

Association of Arch Forms in Class Ii Malocclusions - A Retrospective study


Journal of Contemporary Issues in Business and Government, 2021, Volume 27, Issue 2, Pages 476-486
DOI: 10.47750/cibg.2021.27.02.059

The vertical proportions of the face are significant in determining the esthetics and harmony of the face. Dental arch form is a reflection of underlying bone morphology, size and its shape. Correct identification of a patient's arch form is an important aspect to achieve a stable, functional and esthetic orthodontic treatment result. To evaluate the maxillary and mandibular dental arch forms in class II malocclusion. A retrospective cross-sectional study was conducted using the patient records from a dental hospital from June 2019 until March 2020. Patients diagnosed with class II malocclusion were selected and evaluated for its association with dental arch form. Data was collected and then subjected to statistical analysis. Statistical analysis: Microsoft Excel 2016 data spreadsheet was used to collect data and later exported to the SPSS software. Among 308 individuals diagnosed with class II malocclusion, ovoid arch form was the most frequent dental arch form found in both maxillary and mandibular arches. Broad and narrow arch forms showed nearly equal distributions in both arches among males and females. Within the limitation of our study, ovoid arch form seems to be the most prevalent arch form in Class II malocclusions subjects

En Masse Distalization As A Treatment Option In Correction Of Skeletal Class Ii Malocclusion.


Journal of Contemporary Issues in Business and Government, 2021, Volume 27, Issue 2, Pages 3078-3084
DOI: 10.47750/cibg.2021.27.02.315

Treatment of skeletal Class II malocclusion in a growing patient will involve growth modification therapy using myofunctional appliances. In case of some patients non compliance Class II correctors may be used to correct discrepancies. Skeletal Class II malocclusion due to prognathic maxilla may require headgears for correction. The introduction of infra zygomatic screws and buccal shelf screws have broadened the scope of Class II correction in late adolescence and adults. Invariably patients with skeletal Class II malocclusions do not report to the orthodontists at a time when growth can be harnessed for correction of the skeletal malocclusion. In most of these cases camouflage treatment or orthognathic surgery were the options. Bone screws have now changed the scenario providing patients with the option of en masse distalisation not involving extractions or surgery. This study aims to evaluate the treatment options not involving growth modification chosen for patients with skeletal Class II malocclusion.  Patient records were screened for skeletal Class II malocclusion, patients from the age group of 14 to 35 were chosen for the study. Patients undergoing treatment with myofunctional appliances and non compliance Class II correctors were eliminated from the study. A total of 80 patient records were obtained. Data on age, gender and treatment plan were tabulated. Samples were divided into three groups based on treatment plan. Group A (N= 50) represented camouflage treatment, Group B (N= 16) represented en masse distalisation and Group C (N= 14) represented orthognathic surgery. The association between age, gender and treatment plan was tested using Pearson’s test of independence. Results of the study showed that 62.5% of all patients in the study had undergone camouflage treatment with only 20% undergoing en masse distalisation. 17.5% of patients had undergone orthognathic surgery. It was observed that the age group of 20-24 years contributed to the maximum number of patients  reporting for correction of Class II skeletal malocclusions. Pearson Chi-Square value of 2.843 and  p-value of 0.241( p-value< 0.05 significant) showed that there was no association between gender and treatment plan chosen. Pearson’s Chi Square value of 18.09 and  p value of 0.021 (p value < 0.05,statistically  significant) showed an association between age and treatment plan chosen for the patient. From the results of the study it can be concluded that there was an association between age and treatment plan in correction of Class II malocclusion. En masse distalisation as a treatment option was predominantly chosen in late adolescence and young adults.