Résumé
Objective:To compare and find out the possible application of OPG for gonial angle and compare it with cephalogram in Orthodontic patients of a Public Sector Dental Institute
Materials and Methods:In this descriptive retrospective study lateral cephalograms and OPG of 103 patients, 27 males and 76 females were analyzed. The gonial angle was determined in panoramic radiographs by two tangents drawn from the condyle's posterior borders and right and left ramus and inferior border of the mandible. Landmarks in the cephalogram were identified and spotted. Cephalometric protractor and calipers were used to mark and measure the angles. Angles and other parameters were rechecked to counter any missed measurement
Results: In lateral cephalograms the mean value of gonial angle was 121.77 degree and in panoramic radiographs 122.18 degree. In females,the difference among the mean gonial angle in both radiographs was 1.20 and in males 1.224 while difference among the two genders was 0.02 degree. As P > 0.05 for all the variables stated above, these differences were not significant
Conclusion: OPG may be considered to evaluate the gonial angle as correctly as a lateral cephalogram because in the values of gonial angles measured in both radiographs there was non- significant difference. The plus point in OPG is that it is more accurate in evaluating patient's gonial angles without any overlaid images
Résumé
To determine the efficacy and safety of low dose [20 mg] isotretinoin for the treatment of mild to moderate acne for a duration of six to nine months. This was an observational, non-comparative, uncontrolled study. This study was carried out at the Department of Dermatology, Shalarnar Hospital Lahore from 01-1-2010 to 31-12-2013. Six hundred adult patients of either sex with mild to moderate acne and, ages between 15 to 25 years were enrolled. They were treated with a fixed low dose of isotretinoin daily irrespective of weight, for six to nine months. Patients were evaluated clinically at baseline, then monthly during the treatment and follow-up. Of the 600 patients enrolled, 580 completed the study. 94% of patients were completely cured in six months with a cumulative dose of 6237 mg/kg. Treatment was continued for 6% of patients, who still had active acne lesions. The cure rate reached 98.96% at the end of ninth months. Patients were followed for another six months and a relapse rate of 4.48% was observed. Mild cheilitis and xerosis were common. Laboratory abnormalities were mild and transient. Six to nine months treatment with a daily dose of 20 mg/day isotretinoin was found to be effective in patients with mild to moderate acne. The drug was well-tolerated and showed almost negligible clinical and laboratory side effects