Canine retraction using a closed nickel titanium coil spring and an elastic module

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

Efficacy of intra-alveolar chlorhexidine gel in reducing frequency of alveolar osteitis in mandibular third molar surgery

To determine the efficacy of intra-alveolar administration of chlorhexidine [CHX] gel in reducing the frequency of alveolar osteitis [AO] after impacted mandibular third molar surgery. A randomized control trial study. Department of Oral and Maxillofacial Surgery, Armed Forces Institute of Dentistry, Rawalpindi, Pakistan, from January to December 2007. One hundred patients including 65 males and 35 females with the age range 18-40 years were divided in two equal groups [50 each in the CHX and the control groups]. Surgical removal of impacted mandibular third molar was carried out and after surgery CHX gel was placed into the alveolus of CHX group. Patients were followed at the first, second and third postoperative days. A proforma indicating presence or absence of pain, blood clot disintegration, halitosis and AO was filled for each patient. Frequencies and percentages were calculated for qualitative data. Chi-square test was applied to compare both subgroups. Eighteen patients [18%] were diagnosed with AO [11 males and 7 females]. Out of these 18 cases, 14 [28%] were found in control group [9 males and 5 females], while 4 cases [8%] in the CHX group [2 males and 2 females]. This was statistically significant p=0.017. Single application of CHX gel was effective in reducing frequency of AO following mandibular third molar surgery

Prevalence of impacted and ectopic teeth in patients seen in a tertiary care centre

The objective of the study was to calculate the prevalence of most frequent impacted and, ectopic teeth in patients reporting to Orthodontic OPD at Armed Forces Institute of Dentistry [AFID] Rawalpindi. Duration of the study was one year from 7 December 04 to 6 December 05. The sample consisted of 388 females and 162 males. Complete record of the patient was taken. 500 patients of both sexes of age 8-25 years were fully analyzed, 124 patients had impacted teeth and 102 patients had ectopic teeth. Most frequently impacted teeth were third molars especially lower right ones. Most frequent ectopic teeth were canines especially upper left canines. Comparing the two jaws, impaction was more common in the mandible 52 [10.4%] than in maxilla 30 [6%], while 42 [8.4%] patients had impacted teeth in both jaws simultaneously. Only one patient had 5 teeth impacted. Most commonly ectopic teeth were maxillary canines which were 102 [60.5%]. Ectopic teeth were more common in females than in males and were more in the upper jaw than in the lower