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CC BY 4.0 · Eur J Dent 2022; 16(03): 594-598
DOI: 10.1055/s-0041-1735935
Original Article

Fracture Incidence of Kedo-S Square Pediatric Rotary Files: A Prospective Clinical Study

Lakshimi Lakshmanan 
1   Department of Pediatric and Preventive Dentistry – Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Chennai, Tamil Nadu, India
,
Ganesh Jeevanandan 
1   Department of Pediatric and Preventive Dentistry – Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Chennai, Tamil Nadu, India
,
Prabhadevi C Maganur 
2   Department of Preventive Dental Sciences, Division of Pedodontics, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
,
Satish Vishwanathaiah 
2   Department of Preventive Dental Sciences, Division of Pedodontics, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
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Abstract

Objective The primary focus of this clinical study was to analyze the probability of occurrence of instrument fracture after root canal preparation of primary molars with the help of Kedo-S Square pediatric rotary file.

Materials and Methods Three experienced specialists treated 100 primary maxillary and mandibular molars (335 root canals) using a standardized protocol over 2 months. Biomechanical preparations were carried out using Kedo-S Square file, as per the suggestions given by the manufacturer. Every instrument in Group A helped handle three clinical cases, while for groups B, C and D, they helped in handling 5, 9, and 12 cases, respectively. Making use of an operational microscope, the rotary files, after being pulled out from the canal, were observed. The values were tabulated, and descriptive statistics were performed.

Results There were two fractures (2%), of which 1 occurred in group C in the apical 1/3rd of distobuccal canal of maxillary molar, and the other occurred in group D in the apical 1/3rd of mesiobuccal canal of maxillary molar.

Conclusions The fracture rate of Kedo-S Square rotary file is quite low. It is primarily in the buccal canals of the maxillary molars and the apical third of the root canal that the instrument has a greater probability of separation.

Keywords

biomechanical preparation - fracture incidence - instrument fracture - Kedo-S Square - rotary file


Publication History

Article published online:
04 December 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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