Comparative Evaluation of Three Nickel-Titanium Instrumentation Systems in Human Teeth Using Computed Tomography
Abstract
Objectives: Root canal cleaning and shaping during root canal treatment have been one of the important stages in achieving success The objective of this study was to investigate area and volume changing occurring during shaping of the root canals with three different nickel titanium instrument systems (Race, Hero shaper, Protaper).
Method: In this study, 91 upper first molar teeth were used. Teeth divided randomly into 3 groups. Mesio buccal root of first upper molar teeth were shaped with Race, Hero shaper, and Protaper. The CT images were taken before and after shaping. The taken CT images were transferred to mimics software and 3D models were obtained. On these 3D models, area and volume changes were calculated. Data were subjected to one way Anova. Significance level was set at P= 0.05
Results: No significant difference was found between the volumes calculated on images in terms of the effectiveness of the instruments (P=0.47). No significant difference was found between the areas calculated on images in terms of the effectiveness of the instruments (P=0.71).
Conclusion: Within the limits of this study, all rotary instrument systems showed similar effects in terms of area and volume changes of the root canals at the end of the shaping process.
Method: In this study, 91 upper first molar teeth were used. Teeth divided randomly into 3 groups. Mesio buccal root of first upper molar teeth were shaped with Race, Hero shaper, and Protaper. The CT images were taken before and after shaping. The taken CT images were transferred to mimics software and 3D models were obtained. On these 3D models, area and volume changes were calculated. Data were subjected to one way Anova. Significance level was set at P= 0.05
Results: No significant difference was found between the volumes calculated on images in terms of the effectiveness of the instruments (P=0.47). No significant difference was found between the areas calculated on images in terms of the effectiveness of the instruments (P=0.71).
Conclusion: Within the limits of this study, all rotary instrument systems showed similar effects in terms of area and volume changes of the root canals at the end of the shaping process.
Keywords
Hero shaper,Protaper,Race,Root Canal Area, Root Canal Volume
References
- Albrecht Lynn J, Baumgartner JC, Marshall J. Evaluation of apical debris removal using various sizes and tapers of ProFile GT files. In Journal of endodontics 2004;30 (6): 425–428.
- Baker NA, Eleazer PD, Averbach RE, Seltzer S. Scanning electron microscopic study of the efficacy of various irrigating solutions. In Journal of endodontics (1975) 1 (4):127–135.
- Bramante CM, Berbert A, Borges RP. A methodology for evaluation of root canal instrumentation. Journal of endodontics (1987) 13 (5):243–245.
- Dalton BC, Ørstavik D, Phillips C, Pettiette M, Trope M. Bacterial reduction with nickel-titanium rotary instrumentation. Journal of endodontics (1998) 24 (11):763–767. Gluskin AH, Brown DC, Buchanan LS. A reconstructed computerized tomographic comparison of Ni-Ti rotary GT files versus traditional instruments in canals shaped by novice operators. International endodontic journal (2001) 34 (6):476–484.
- Haapasalo M, Endal U, Zandi H, Coil JM. Eradication of endodontic infection by instrumentation and irrigation solutions. Endodontic Topics 2005;10 (1):77–102.
- Ikram OH, Patel S, Sauro S, Mannocci F. Micro-computed tomography of tooth tissue volume changes following endodontic procedures and post space preparation. International endodontic journal 2009;42 (12):1071–1076.
- Loizides AL, Kakavetsos VD, Tzanetakis GN, Kontakiotis EG, Eliades G. A comparative study of the effects of two nickel-titanium preparation techniques on root canal geometry assessed by microcomputed tomography. Journal of endodontics 2007;33 (12):1455–1459.
- Mahran AH, AboEl-Fotouh MM. Comparison of effects of ProTaper, HeroShaper, and Gates Glidden Burs on cervical dentin thickness and root canal volume by using multislice computed tomography. Journal of endodontics 2008;34(10):1219–1222.
- Mizrahi SI, Tucker JW.; Seltzer S. A scanning electron microscopic study of the efficacy of various endodontic instruments. Journal of endodontics 1975;1 (10):324–333.
- Ozgur Uyanik M, Cehreli ZC, Ozgen MB, Tasman DF. Comparative evaluation of three nickel-titanium instrumentation systems in human teeth using computed tomography. Journal of endodontics 2006;32 (7):668–671.