A Comparative Evaluation of Efficacy of Electronic Apex Locator, Digital Radiography, and Conventional Radiographic Method for Root Canal Working Length Determination in Primary Teeth: An Study

Overview

Journal Int J Clin Pediatr Dent

Specialty Pediatrics

Date 2021 Feb 24

PMID 33623342

Citations 3

Authors

Anchal Sahni

Rishabh Kapoor

Kapil Gandhi

Dipanshu Kumar

Geetika Datta

Ritika Malhotra

Affiliations

Soon will be listed here.

Abstract

Aim: Pulpectomy in the primary tooth has unique challenges due to morphological variations in root pattern and physiological root resorption. The electronic apex locator (EAL) is one of the recent methods to determine the estimation of working length without much radiation exposure to the patient as well as the operator. The present study was undertaken for evaluating and comparing the efficacy of EAL, conventional radiography, digital radiography, and actual visual method for the estimation of in the root canal working length (RCL) in extracted primary teeth.

Materials And Methods: Ninety extracted, single-rooted primary teeth were selected. Working length estimation was done with an EAL, conventional, and digital radiographic method, and compared it with an actual visual method.

Results: Accuracy of EAL was observed to be 99.7% followed by digital radiograph (98.1%) and conventional radiograph (96.1%). Both EAL and digital radiographic methods showed a high correlation as compared to conventional. The comparative efficacy of an EAL with a visual method was found to be statistically non-significant ( > 0.005).

Conclusion: Root canal working length determined through the electronic method was found to be an accurate and effective tool in single-rooted primary teeth and can be indicated for clinical implementation in endodontic treatment of primary teeth.

How To Cite This Article: Sahni A, Kapoor R, Gandhi K, A Comparative Evaluation of Efficacy of Electronic Apex Locator, Digital Radiography, and Conventional Radiographic Method for Root Canal Working Length Determination in Primary Teeth: An Study. Int J Clin Pediatr Dent 2020;13(5):523-528.

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References

Shanmugaraj M, Nivedha R, Mathan R, Balagopal S . Evaluation of working length determination methods: an in vivo / ex vivo study. Indian J Dent Res. 2007; 18(2):60-2. DOI: 10.4103/0970-9290.32421. View

Neena I, Ananthraj A, Praveen P, Karthik V, Rani P . Comparison of digital radiography and apex locator with the conventional method in root length determination of primary teeth. J Indian Soc Pedod Prev Dent. 2011; 29(4):300-4. DOI: 10.4103/0970-4388.86371. View

Katz A, Mass E, Kaufman A . Electronic apex locator: a useful tool for root canal treatment in the primary dentition. ASDC J Dent Child. 1996; 63(6):414-7. View

Rimondini L, Baroni C . Morphologic criteria for root canal treatment of primary molars undergoing resorption. Endod Dent Traumatol. 1995; 11(3):136-41. DOI: 10.1111/j.1600-9657.1995.tb00475.x. View

Berman L, Fleischman S . Evaluation of the accuracy of the Neosono-D electronic apex locator. J Endod. 1984; 10(4):164-7. DOI: 10.1016/S0099-2399(84)80121-1. View

Kaufman A, Keila S, Yoshpe M . Accuracy of a new apex locator: an in vitro study. Int Endod J. 2002; 35(2):186-92. DOI: 10.1046/j.1365-2591.2002.00468.x. View

Goerig A, Camp J . Root canal treatment in primary teeth: a review. Pediatr Dent. 1983; 5(1):33-7. View

Goldberg F, De Silvio A, Manfre S, Nastri N . In vitro measurement accuracy of an electronic apex locator in teeth with simulated apical root resorption. J Endod. 2002; 28(6):461-3. DOI: 10.1097/00004770-200206000-00011. View

Felippe M, Soares I . In vitro evaluation of an audiometric device in locating the apical foramen of teeth. Endod Dent Traumatol. 1994; 10(5):220-2. DOI: 10.1111/j.1600-9657.1994.tb00073.x. View

10.

Brunton P, Abdeen D, Macfarlane T . The effect of an apex locator on exposure to radiation during endodontic therapy. J Endod. 2002; 28(7):524-6. DOI: 10.1097/00004770-200207000-00009. View

11.

Subramaniam P, Konde S, Mandanna D . An in vitro comparison of root canal measurement in primary teeth. J Indian Soc Pedod Prev Dent. 2005; 23(3):124-5. DOI: 10.4103/0970-4388.16883. View

12.

Ozsezer E, Inan U, Aydin U . In vivo evaluation of ProPex electronic apex locator. J Endod. 2007; 33(8):974-7. DOI: 10.1016/j.joen.2007.04.003. View

13.

Mente J, Seidel J, Buchalla W, Koch M . Electronic determination of root canal length in primary teeth with and without root resorption. Int Endod J. 2002; 35(5):447-52. DOI: 10.1046/j.1365-2591.2002.00500.x. View

14.

Krishnan I, Sreedharan S . A comparative evaluation of electronic and radiographic determination of root canal length in primary teeth: An in vitro study. Contemp Clin Dent. 2013; 3(4):416-20. PMC: 3636831. DOI: 10.4103/0976-237X.107430. View

15.

Bodur H, Odabas M, Tulunoglu O, Tinaz A . Accuracy of two different apex locators in primary teeth with and without root resorption. Clin Oral Investig. 2007; 12(2):137-41. DOI: 10.1007/s00784-007-0157-5. View

16.

Kielbassa A, Muller U, Munz I, Monting J . Clinical evaluation of the measuring accuracy of ROOT ZX in primary teeth. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003; 95(1):94-100. DOI: 10.1067/moe.2003.99. View

17.

Lee J, Nettey-Marbell A, Cook Jr A, Pimenta L, Leonard R, Ritter A . Using extracted teeth for research: the effect of storage medium and sterilization on dentin bond strengths. J Am Dent Assoc. 2007; 138(12):1599-603. DOI: 10.14219/jada.archive.2007.0110. View

18.

Salama F, Anderson R, Barenie J, Myers D . Anatomy of primary incisor and molar root canals. Pediatr Dent. 1992; 14(2):117-8. View

19.

Muthu M, Sivakumar N . Accuracy of electronic apex locator in length determination in the presence of different irrigants: An in vitro study. J Indian Soc Pedod Prev Dent. 2006; 24(4):182-5. DOI: 10.4103/0970-4388.28074. View

20.

Shabahang S, Goon W, Gluskin A . An in vivo evaluation of Root ZX electronic apex locator. J Endod. 1996; 22(11):616-8. DOI: 10.1016/S0099-2399(96)80033-1. View