Prerna Hoogan Teja

Abstract

Introduction: The present study was done to evaluate and compare the effect of probiotic toothpaste in reducing streptococcus mutans and to improve periodontal status of patients who are undergoing fixed orthodontic treatment. Materials and Methods:  A total of 60 participants undergoing fixed orthodontic treatment in age range of 14-29 years were selected to receive probiotic toothpaste for a 30 days period. Participants were examined at 2 time points: base line (start of the study) T0 and after 30 days (T 1) of using probiotic toothpaste. In both the groups, S. Mutans Colony Count and Orthodontic Plaque Index was evaluated. Result: At T0, the mean S. mutans colony count was found to be 63.31± 27.23x10-2 CFU/ml. At T1 the mean S. Mutans colony count was found to be 29.70 ± 15.41x10-2 CFU/ml. The mean Plaque Index was found to be 1.23+0.53 at T0. After using probiotic toothpaste twice daily for a period of 1 month (T1) the mean Plaque Index was found to be 0.11±0.32. Conclusion: Use of probiotic toothpaste twice daily has been found useful in reducing S. Mutans colony count after using for a period of 1 month.   Keywords: Probiotics, Streptococci, Plaque, white

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Objective: to compare the aligning efficiency, pain experienced by the patient during alignment and the post alignment third order values of anterior teeth in I arch (study) group and conventional NiTi (control) wire group. Design: A prospective clinical study. Materials and Methods: A total of 40 dental arches (maxilla/mandible) were divided into 2 study groups with 20 dental arches (maxilla/mandible) in each group based on the selection criteria. Group I. Twenty dental arches (maxillary/mandibular) having 0.018” preadjusted appliance (MBT) brackets (ORMCO), aligned with I –arch 0.016”x0.014” copper NiTi wires. Group II. Twenty dental arches (maxillary/mandibular) having 0.018” preadjusted appliance (MBT) brackets by ORMCO aligned with round super elastic NiTi archwires. Results: I -arch copper NiTi (study group) was more efficient in alignment compared to the superelastic NiTi (control group) in the lower arch and the values are statistically significant. There was torque expression in the I-arch group as compared to the superelastic NiTi group. The subjects in the I-arch (study group) experienced lesser pain compared to the superelastic NiTi (control group) and the pain values are statistically significant.   Keywords: Orthodontic pain, Alignment, NiTi wires, CuNiTi, Torque.

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Aims: The purpose of this study was to compare mandibular asymmetry in different malocclusions, including Angle's Class I malocclusion, Angle's Class II div 1 malocclusion, Angle's Class II div 2 malocclusion, Angle's Class II subdivision and Unilateral posterior cross bite. Materials and Methods: A total number of 150 subjects with the age range of 18-24 yrs with no signs and symptoms were selected for the study (n=30). The condylar asymmetry index (CAI), ramal asymmetry Index (RAI) and Condylar and Ranal Asymmetry Index (CRAI) for each patient was measured using panoramic radiograph. The results were analyzes using Kappa test, Dahlberg’s formula and Tukey HSD Post Hoc test. Results: Group IV (Angle's Class II subdivision malocclusion) had the maximum Condylar Asymmetry Index (13.07 ±12.43mm) whereas Group II (Angle's Class II div 1 malocclusion) had the minimum Condylar Asymmetry Index (7.89 ±8.71mm). Group III (Angle's Class II div 2 malocclusion) had the maximum Ramus Asymmetry Index (3.84 ± 2.54%) whereas Group II (Angle's Class II div 1 malocclusion) had the minimum Ramus Asymmetry Index (2.82 ± 1.94%). Condylar and Ramus Asymmetry Index was seen in Group IV (Angle's Class II subdivision malocclusion) (3.61 ± 2.43 mm) whereas minimum condylar and ramus asymmetry index was seen in Group V (Unilateral posterior cross bite) (2.42 ± 2.08 mm). However, no statistically significant differences were found. Conclusion: No statistically significant difference was found in vertical mandibular asymmetry indices when compared in different malocclusions. No gender related statistically significant difference was found in all groups.   Keywords: Facial asymmetry, Mandibular asymmetry, Malocclusion, O.P.G, Condylar asymmetry.

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