ABSTRACT
Introduction: Aesthetic appearance including dental appearance plays a vital role in a person’s personality especially among Adolescents. Malocclusion is a Handicapping dentofacial anomaly, which can be prevented in the earlier stage. Aim and objectives: To find out the prevalence of Malocclusion and association between gender and malocclusion among 14- 17 years old adolescents in Karaikal population. Materials and methods: 425 participants between the age group of 14-17 years were examined for malocclusion over a period of 15 months and classified according to Angle’s classification. Results: Prevalence of Malocclusion in this study was 32% (136). Around 20.2% had Class I, 9.7% had class II and 2.1% had class III malocclusion. No association was found between gender and malocclusion. Conclusion: In this study, class I malocclusion is more prevalent. Dental public health services should be trained to diagnose malocclusion at primary health care level to treat malocclusion in the earlier stage.
ABSTRACT
Aim: This in vitro study was designed to evaluate and compare the shear bond strength of stainless steel brackets bonded to ceramic crowns etched with Hydrofluoric acid and Lasers. Place of Study: This study was carried out in the Department of Orthodontics and Dentofacial Orthopedics, RMDCH, Annamalai University, Chidambaram, 2012 to 2014. Methodology: Forty ceramic crowns were fabricated using Vita ceramic blocks and were mounted on acrylic blocks. Samples were randomly divided into four groups and stored in artificial saliva. Ceramic surfaces from Group A and B were etched with 4% hydrofluoric acid and Group C and D were etched with Lasers respectively and they were bonded to stainless steel brackets. Samples from group A and C were bonded with stainless steel brackets using light cure GIC and samples from group B and D were bonded with stainless steel brackets using light cure composite. Debonding of the brackets from ceramic surface was carried out using universal testing machine and the debonded surface texture was analysed using SEM. Results: Both mean values and standard deviations were estimated from the sample for each study group. Mean values of shear bond strengths were compared by using one- way ANOVA followed by Tukey-HSD procedure. Pearson chi-square test was done to test the significance of shear bond strength between study groups. Mean shear bond strength in Group D (9.23±2.74 Mpa) was significantly higher than remaining tested groups followed by Group B (7.5±1.029 Mpa), Group C(6.823±1.202 Mpa) and Group A (6.11±1.019 Mpa) (p< 0. 05). Conclusion: Er-Cr: YSGG laser etching on roughened ceramic can be used as an alternative for bonding orthodontic attachments to ceramic surfaces.
ABSTRACT
Modern day general dental practice and orthodontic specialty practice is no longer limited only for healthy and younger individuals. Bisphosphonates ( Bp) have gained much popularity with regard to treatment of calcium metabolic disorders. In every part of the world currently adult patients under bisphosphonate therapy are visiting dental and orthodontic clinics to resolve their problems. So far there is no contraindication for orthodontic patients who are under bisphosphonate therapy. Even though there is no contraindication for orthodontic intervention, few general dental procedures like surgical or invasive treatments are avoided as a precautionary measure. Considerable modifications of regular dental and orthodontic procedures should be enforced in their management. This article reviews the clinical implication of the patients under bisphosphonate therapy who are in need of dental and orthodontic procedures.
ABSTRACT
The purpose was to evaluate the influence of a NSAID, Diclofenac Sodium (DFS) on the tissue reaction related to orthodontic tooth movement (OTM). Methods: 27 adult male wistar rats were divided into 3 Groups of 9 each. Orthodontic closed coil spring was placed between rat incisor and molar to produce a 50 gm of force. The experimental Groups1 and 2 received orthodontic force and either DFS of 0.0025mg/0.05ml or 0.05ml of saline, Group 3 received only orthodontic force and served as a control group. At the end of day 5, 10 and 15 the animals were sacrificed and histological examination was performed. Results: Student’s t test showed a statistically significant difference between the control Groups and experimental Groups. Group 1 showed a statistically significant reduction in osteoclastic cell count at day 5, 10 and15 when compared to Group 2 and Group 3. Conclusion: The results indicate that the Diclofenac Sodium even at low concentration level diminishes the number of osteoclasts probably by inhibiting the secretion of prostaglandins there by reducing the OTM.
ABSTRACT
Endodontic treatment of teeth is now a common procedure across all age groups, either as a result of caries or trauma. Furthermore, as the number of adults undergoing orthodontic treatment increases, the number of orthodontic patients presenting with restored teeth or having endodontic treatment is on the rise. Diagnosis and treatment planning for these patients require an evidence based approach to achieve a good functional and esthetic results. Orthodontic treatments have profound effect on pulp and periodontal ligament which can lead to root resorption or loss of vitality which remain as orthodontic scars. Literature regarding occurrence of root resorption in vital teeth and teeth having endodontic treatment, the influence of trauma, the provision and outcome of endodontic treatment when attempted during the course of orthodontic therapy and the adjunctive role of orthodontics in facilitating good endodontic output are inconclusive till now. The integrated endodontic and orthodontic treatment in such situations will give optimum results. This article mainly focuses on orthodonticendodontic interactive tasks to be tackled that are often encountered in clinical practice which play an important role in treatment planning and its outcome.