Accuracy of working length measurement with endo motor having built-in apex locator and comparison with periapical radiographs | [Journal of Pakistan Medical Association • 2020]

Author(s):

1. Syed Yawar Ali Abidi: Sindh Institute of Oral Health Sciences, Jinnah Sindh Medical University, Karachi, Pakistan

2. Marium Azfar: Sindh Institute of Oral Health Sciences, Jinnah Sindh Medical University, Karachi, Pakistan

3. Talha Nayab: Sindh Institute of Oral Health Sciences, Jinnah Sindh Medical University, Karachi, Pakistan

4. Asjad Shaukat: Ishrat-Ul-Ebad Institute of Oral Health Sciences, Dow University, Karachi, Pakistan

5. Mehvesh Hasan: Ishrat-Ul-Ebad Institute of Oral Health Sciences, Dow University, Karachi, Pakistan

6. Nabeel Naeem Baig: College of Physicians and Surgeons Pakistan.

7. Khadijah Abid: College of Physicians and Surgeons Pakistan.

Abstract:

Objective: To determine the accuracy of working length measurement with endomotor having builtin apex locator by comparing it with periapical radiographs. Methods: The cross-sectional study was conducted at the Department of Operative Dentistry, Dr Ishrat-ul-Ibad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi, from January to June 2014, and comprised permanent maxillary anterior teeth with mature apices. A preoperative radiograph was taken by using standardised paralleling technique. The access cavity was prepared by a high speed water-cooled diamond bur. After doing initial filing and drying the canal, the working length was taken with an endomotor with built-in apex locator in dual mode using the Protaper Rotary File S1. The length was measured using a millimetre scale. After attaining tentative working length from the pre-operative radiograph, 1mm was subtracted from the radiographic apex. A stainless steel K-file was placed in the canal at this length and a radiograph was taken by paralleling technique using intraoral film holder. The electronic and radiographic findings were noted. Accuracy was considered positive if the endomotor reading was 0-2mm short of the radiographic working length. Data was analysed using SPSS 16. Results: Of the 96 cases, working length with X-Smart Dual was acceptable in 85(88.5%) cases, and unacceptable in 11(11.5%) cases. Conclusion: Accuracy of working length measurement with endomotor having built-in apex locator was found to be a better measuring tool compared to the conventional periapical radiographs.

Page(s): 437-441

DOI: DOI not available

Published: Journal: Journal of Pakistan Medical Association, Volume: 70, Issue: 3, Year: 2020

Keywords:

XSmart Dual , Working length , Radiographs

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