RESUMO
Objective: To compare the mean change of tooth movement in canine retraction between elastic module and Ni Ti coil spring
Study Design: Comparative study
Place and Duration of Study: Orthodontics Department, Armed Forces Institute of Dentistry, Rawalpindi, from May 2015 to January 2016
Methodology: Thirty-two patients were inducted. After alignment and extraction of maxillary first premolars, canine retraction was started with closed Ni Ti coil spring on one side of the maxillary arch and with active tie back on the other side. The distance between the lateral incisor and the canine was measured on both sides before starting canine retraction. The same measurements were recorded after four weeks of retraction. The difference between pre and post retraction measurements was recorded. The difference in the rate of canine retraction between both modalities was compared using independent sample t-test
Results: The study included 56% females and 43% males. The mean rate of tooth movement in Ni Ti coil group and in the elastomeric module group was 1.1 mm and 0.7 mm in one month, respectively [p=0.05]
Conclusion: The rate of tooth movement is more rapid with Ni Ti coil spring than with the elastomeric module
RESUMO
We have presented here a Dental anomalies, hypodontia/oligodontia and microdontia in a family which reported to us at Armed Forces Institute of Dentistry Rawalpindi. A father along with his two sons presented to us with complaints of small sized dentition and gaps between teeth. On examination it was found that all three of them had concomitantly occurring hypodontia and microdontia which had functional and esthetic implications. It was then planned to adopt multidisciplinary approach to treat the patients involving orthodontics, restorative dentistry and prosthodontics
RESUMO
Objective: To compare the Bolton ratio between Punjabi and Pathan population reporting to Armed Forces Institute of Dentistry [AFID] Rawalpindi
Study Design: Comparative study
Place and Duration of Study: Department of Orthodontics at AFID Rawalpindi from May 2014 till Dec 2014
Material and Methods: On the basis of inclusion criteria; 107 good quality study casts out of 150 patients were selected. They were divided into Punjabi and Pathan groups. Both the Overall Bolton Ratio and Anterior Bolton Ratio were calculated for both of these groups. For comparison of their means an independent t test was applied. A p value was determined for anterior and overall Bolton Ratios at 95% confidence interval
Results: Our sample consisted of 52.3% females and 47.7% males. The percentage of the Punjabi population was 59.9% [n=64] and Pathan population was 40% [n=43]. Our mean Overall Bolton ratio calculated was 90.69%. The mean Anterior Bolton ratio calculation was 78.93%. The mean overall Bolton Ratio for Punjabi population was 90.24 and for Pathan population the Ratio was 91%. The mean anterior ratio for Punjabi population was 78.08 and for Pathan population the ratio was 80.19. The p value for overall ratio was .119 while for the anterior ratio the p value was .091
Conclusion: Differences were noted in Bolton Ratio [Overall Bolton Ratio and Anterior Bolton Ratio], but they were statistically insignificant