Mean endodontic working length of Permanent Maxillary Central Incisors in a sample of Pakistani population.

Objectives: To evaluate the mean working length of permanent maxillary central incisor in the patients presenting at the O.P.D. of Dow Dental College.
Methods: A number of 84 patients were selected based on a predefined inclusion and exclusion criteria. Maxillary central incisors with intact crown scheduled for endodontic treatment were included. Maxillary central incisors with external and internal resorption, calcified canal and tooth with root anomalies were excluded. Endodontic working length was measured using Radiographic method. Age, gender and ethnicity was also recorded. Data was recorded on a proforma. SPSS version 15 was used for data analysis. Simple descriptive statistics was used to generate mean and standard deviation.
Results: Mean endodontic working length of the permanent maxillary central incisor in a sample of Pakistani patients was 21.5±2.31mm.In male and females the working lengths were 22.01±2.48mm and 21.08±2.01mm respectively. Mean Radiographic working length of male candidates was longer than female candidates (P<0.05).
Conclusions: The mean endodontic working length of permanent maxillary central incisors in a sample of Pakistani population was found to be 21.5±2.31mm which was less than that reported in Nigerian population.