Working Length Of Maxillary Primary Second Molars In Children Aged 2-6 Years - A Retrospective Study

Aim: The predictable endodontic success demands an accurate working length. Thus, the aim of the study is to compare the working length of each root canal obtained for primary maxillary second molars in children aged 2-6 years. Materials and Methods: A retrospective study was carried out using digital records of 1,372 children who reported to the Department of Paediatric and Preventive Dentistry from June 2019 to March 2020. A total of 113 records that mentioned maxillary primary second molars (55,65) were finally included for the study evaluation. Patients between the age group of 2-6 years were included in the study. The following data were retrieved from the dental records: age, gender, working length of each canal and pulpal pathology. The records were examined and noted in a spreadsheet. The collected data was analysed by computer software SPSS version 21 using one-way Anova test with the level of significance set at 5%. Results: The mean age was observed to be 4.66 years in the present study. Gender showed an unequal distribution of participants. The mean working length of the root canal in each canal is more when the patient has only pain when compared with other pathology such as swelling, Abscess, Resorption. One way ANOVA test, p value = 0.00 (< 0.05) Hence, statistically significant. Conclusion: The mean working length was found to be 10.82mm (MB canal), 10.72mm (DB canal), 12.80mm (Palatal canal) with respect to pulpal pathology (P = 0.00). The reported data may help clinicians to obtain a thorough understanding on the working length of primary maxillary second molars. Clinical Significance: The purpose of this study was to evaluate the mean working length of MB canal, DB canal and Palatal canal in primary maxillary second molars and to compare the results with pulp pathology such as pain, swelling, abscess and resorption.