Dental restorations - reasons for placement and replacement

The objective of the present study was to determine the clinical reasons leading to the decision of dental restoration placement and replacement. It was a descriptive case series study and was carried out from October 2010 to July, 2011. non-probability convenience sampling. From the city of Lahore, 30 dental clinics were selected randomly, after dividing the metropolis into six administrative zones with 5 dentists from each zone. All the thirty dentists from six zones were asked to register 100 consecutive direct restorations. The standard criteria proposed by Wilson et al [8] was used to record the reasons for placement and replacement of the restorations. The response from the private practitioners for data collection was 70%. The remaining data was collected from the department of Operative Dentistry, Lahore Medical and Dental College, Lahore. The results of the present study revealed that the primary caries was the major reason [84.3%] for the placement of the initial restoration and secondary caries accounted for the majority [7.1%] of the replacement restoration in the Lahore city. It was concluded that the major reason for restoration placement and replacement was caries therefore there is an need for finding the factors that are responsible for high caries incidence in Lahore and efforts should be made to prevent the caries

role of intercondylar distance in the posterior teeth arrangement

The objective of this study was to determine the relationship of intercondylar distance with maxillary intermolar distance. It was cross-sectional comparative study and was conducted at the Department of Prosthodontics, Lahore Medical and Dental College, Lahore from June 2011 to November 2011. A total of 250 dentate subjects were selected according to the inclusion criteria. The impression of the maxillary arch was obtained using alginate. The vernier caliper was used to measure the distance between the mesiobuccal cusp tips of maxillary first molars. With the help of an arbitrary facebow the intercondylar distance was recorded. The distance obtained between the two condylar rods was measured in millimeters with the vernier caliper. Every distance was measured three times to ensure the accuracy and the mean was taken. The data were recorded on the proforma for the statistical analysis. Pearson correlation coefficients [r] for the intercondylar distance and maxillary intermolar showed positive correlation and significant [r=0.53 p=0.0005]. Intercondylar distance provides significant measurements for the arrangement of posterior teeth in edentulous patients