role of interpupillary distance in the selection of anterior teeth

ABSTRACT

The objective of the present study was to determine the correlation between the interpupillary distance and combined mesiodistal width of maxillary six-anterior teeth in the study.It was a cross sectional studyand was carried out from May 2011 to November 2011. Sampling Non-probability purposive sampling. A total of 159 dentate subjects with Angle's class I molar and canine relationships were selected from the department of Prosthodontics, Lahore Medical and Dental College, Lahore. The exclusion criteria included the subjects with history of orthodontic treatment, extractions, drifting and attrition of the teeth. Subjects having any restoration in upper anterior segment, any facial deformity, crowding or spacing of anterior teeth were also excluded. The informed consent was taken. The patients were seated in the upright position and were asked to look straight. The interpupillary distance was measured using the digital caliper. The measurement was made from the mid pupil of one eye to mid pupil of the other eye. The intercanine width was measured from the casts of maxillary arches with the help of dental floss placed at the greatest curvature of the maxillary arch. The distal surfaces of both the maxillary canines were marked on each sides of the maxillary cast. The dental floss was sectioned at the markings and made straight .The distance was measured between the marks using digital caliper. Both the parameters were measured three times by the single person to ensure the accuracy and the mean was taken. The measurements were recorded in a predesigned Proforma. The statistical results of this study showed that there was no correlation between the interpupillary distance and the combined mesiodistal width of maxillary anterior teeth. It was concluded that the interpupillary distance was not a reliable predictor to select maxillary anterior teeth width for edentulous patients in the study group