Evaluation by means of diaphanization of root canal preparation in flattened canals

Authors

  • Wagner A. Santana Barros de Souza Federal University of Bahia
  • Paloma Souza Gonçalves Faculty of Agrarian and Health Sciences
  • Fabíola Bastos de Carvalho Federal University of Bahia
  • Luis Cardoso Rasquin State University of Feira de Santana

DOI:

https://doi.org/10.15448/1980-6523.2015.4.14727

Keywords:

Root canal preparation, Dental pulp cavity, Endodontics

Abstract

Objective: To evaluate, by diaphanization, the cleaning ability three different instruments on walls of flattened root canals.
Methods: Thirty lower incisors, which had their root canals filled with India ink after coronal access and determination of the working length, were selected. The samples were randomly divided into three groups, of 10 teeth each, according to the instrument used during preparation: Group 1– hand files instrumentation; Group 2– instrumentation with ProTaper Universal rotary files; Group 3 – instrumentation with iRace rotary files. After instrumentation, the teeth were diaphanized and evaluated for cleaning ability, by analyzing the amount of dentin walls in which Indian ink was not removed.
Results: When performing the Kruskal-Wallis test (p>0.05) there were not significant statistical differences between groups, as well as for the arithmetic average of the scores at cervical, middle and apical thirds.
Conclusion: None of the instruments used for root canal preparation of flattened root canals was able to perform a complete cleaning of the dentin walls.

Author Biography

Luis Cardoso Rasquin, State University of Feira de Santana

Prof. Adjunto do Curso de Odontologia da Universidade Estadual de Feira de Santana - Departamento de Saúde Prof. Doutor do Curso de Odontologia do Uniao Metropolitana de Educaçao e Cultura (UNIME) Doutor e Mestre em Endodontia pela Universidade Estadual Julio de Mesquita Filho - Campus Araraquara

References

Sydney GB, Batista A, Deonizio MD. Radicular access. Robrac 2008; 17:1-12.

Hulsmann M, Heckendorff M, Lennon A. Chelatings agents in root cannal treatment: mode of action and indications for their use. Int Endod. J 2003; 36:810-30.

Semaan FS, Fagundes FS, Haragushiku G, Leonardi DP, Baratto-Filho F. Mechanized endodontic: the evolution of continuous rotary systems [review]. RSBO. 2009;6:297-309.

Gonçalves SB, Brosco VH, Bramante CM. Comparative analysis of rotatory (GT) and manual root canal preparation and association of both techniques in instrumentation of flattened root canals. J Appl Oral Sci. 2003;11:35-9.

Baratto-Filho F, Vanni JR, Maia SMAS, Sousa-Neto MD, Leonardi DP. Shaping ability of ProTaper instruments in flattened root canals. Perspect Oral Sci. 2009;1:25-9.

Plotino G, Grande NM, Melo CM, Bahia MG, Testarelli L, Gambarini G. Cyclic fatigue of NiTi rotary instruments in a simulated apical abrupt curvature. Int Endod J. 2010;43:226-30.

Grecca FS, Garcia RB, Bramante CM, de Moraes IG, Bernardineli N. A quantitative analysis of rotary, ultrasonic and manual techniques to treat proximally flattened root canals. J Appl Oral Sci. 2007;89-93.

Wu MK, R’oris A, Barkis D; Wesselink PR. Prevalence and extend of long oval canals in the apical third. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000;89:739-43.

Barbizam JVB, Fariniuk LF, Marchesan MA, Pecora JD, Sousa-Neto MD. Effectiveness of Manual and Rotary Instrumentation Techniques for Cleaning Flattened Root Canals. J Endod. 2001;28:365-66.

Pires LB, Albergaria SJ, Fagundes Tomazinho FS, Tomazinho LF. Radiographic evaluation of apical deviation of curved root canals after the use of manual and rotary instrumentation. RSBO. 2009;6:279-85.

Rasquin LC, Carvalho FB, Lima RKP. In vitro evaluation of root canal preparation using oscillatory and Rotary systems in flattened root canals. J. appl Oral Sci. 2007;15:65-9.

Sipert CR, Hussne RP, Nishiyama CK. Comparison of the cleaning efficacy of the FKG Race system and hand instrument in molar root canal. J Appl Oral Sci. 2006;14:6-9.

Gonçalves LCO, Junior ECS, Frota MF, Marques AAF, Garcia LFR. Morphometrical analysis of cleaning capacity of a hybrid instrumentation in mesial flattened root canals. Aust Endod J. 2011;37:99-104.

Interliche R; Marchesan MA, Silva SRC, Pécora JD, Silva-Sousa YTC, Sousa-Neto MD. Influence of Hero Apical instruments on cleaning ovoidshaped root canals. Braz Oral Res. 2011;25:314-8.

Sasaki EW, Versiani MA, Perez DE, Sousa-Neto MD, Silva-Sousa YT, Silva RG. Ex vivo analysis of the debris remaining in flattened root canals of vital and nonvital teeth after biomechanical preparation with Ni Ti rotary instruments. Braz Dent J. 2006;17:233-6.

Grecca FS. Avaliação da eficácia dos métodos de instumentação rotatória (sitema K3 e Protaper), ultra-som e manual na remoção de corante aderido às paredes de canais radiculares com achatamento proximal. Estudo “in vitro”. (Dissertação de doutorado) Bauru (SP): Faculdade de Odontologia de Bauru 2003.

Martini GR, Vanni JR, Bona AD, Lazaretti D. A. The influence of different methods of cervical magnifying in the attainment of the lenght of work in first mesio-vestibular canals tests of superior molar. RSBO. 2007;4:7-11.

Pécora JD, Capelli A. Técnica mecanizada para preparo dos canais radiculares- Protaper Plus. [article online]. School of Dentistry of Ribeirão Preto, University of São Paulo. 2004. [Accessed on 2013 April 27]. Available at http://www.forp.usp.br/restauradora/rotatorios/protaper_plus/protaper_plus.pdf

Lopes HP, Souza LC, Vieira VTL, Silveira AMV, Vieira MVB, Elias CN. Fratura dos instrumentos endodônticos. Recomendações clínicas. Rev Bras Odontol. 2011;68:152-6.

Wu MK, Sluis VLWM, Wesselink PR. The capability of two hand instrumentation techniques to remove the inner layer of dentine in oval canals. Int Endod J. 2003;36:218-24.

Baratto-Filho F, Leonardi DP, Zielak JC, Vanni JR, Sayão-Maia SMA, Sousa-Neto MD. Influence of protaper finishing files and sodium hypochlorite on cleaning and shaping of mandibular central incisors – A histological analysis. J Appl Oral Sci. 2009;17:229-33.

Ritt AS, Buco J, Wagner MH, Rosa RA, Vier-Pelisser FV, Só MVR. Effectiveness evaluation of manual x rotary instrumentation during endodontic retreatment in root canals filled with gutta-percha and calcium hydroxide based-sealer. RFO. 2012;17:55-9.

Schirrmeister JF, Wrbas KT, Schneider FH, Altenburger MJ, Hellwig E. Effectiveness of a hand file and three nickel-titanium rotary instruments for removing gutta-percha in curved root canals during retreatment. Oral

Surg Oral Med Oral Pathol Oral Radiol Endod. 2006;101:542-7.

Williamson AE, Sandor AJ, Justman BC. A comparision of three nickel titanium rotary systems. EndoSequence, ProTaper universal, and ProFile GT, for canal-cleaning ability. J Endod. 2009;35:107-9.

Taha NA, Ozawa T, Messer HH. Comparision of three techniques for preparing oval-shaped root canals. J Endod. 2010;36:532-5.

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Published

2016-01-15

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