Evaluation of apical transportation and apical root sealing in root canals prepared with mtwo rotary system with and without apical enlargement – an in vitro study

Matheus Albino Souza; João Paulo De Carli; Fernando Tolfo Rodrigues; Larissa  Piuco; Karolina  Frick Bischoff; Juliane  Bervian; Julia  Zandoná; Estela  Marta Doffo Winocur; Adriana de Jesus Soares

doi:10.14393/BJ-v37n0a2021-56141

Autores

Matheus Albino Souza Universidade de Passo Fundo https://orcid.org/0000-0002-9412-3807
João Paulo De Carli Universidade de Passo Fundo https://orcid.org/0000-0002-4705-6226
Fernando Tolfo Rodrigues Universidade de Passo Fundo https://orcid.org/0000-0002-0369-9481
Larissa Piuco Universidade de Passo Fundo https://orcid.org/0000-0003-4680-9991
Karolina Frick Bischoff Universidade de Passo Fundo https://orcid.org/0000-0001-7805-5253
Juliane Bervian Universidade de Passo Fundo https://orcid.org/0000-0001-5718-3539
Julia Zandoná Universidade Federal do Rio Grande do Sul https://orcid.org/0000-0002-9816-0293
Estela Marta Doffo Winocur Universidade Estadual de Campinas https://orcid.org/0000-0001-5191-4476
Adriana de Jesus Soares Universidade Estadual de Campinas https://orcid.org/0000-0002-8078-1606

DOI:

https://doi.org/10.14393/BJ-v37n0a2021-56141

Palavras-chave:

Apical foramen, Instrumentation, Enlargement, Root canal filling.

Resumo

Objetivo: avaliar o transporte apical e o selamento apical do canal radicular após o preenchimento do canal radicular em dentes humanos que foram preparados com o Sistema rotatório MTwo®, com e sem aumento do forame apical. Metodologia: vinte pré-molares inferiores foram divididos em dois grupos (n=10). O grupo 1 apresentou canais radiculares preparados 1mm além do forame apical. O grupo 2 apresentou canais radiculares preparados 1mm aquém do comprimento do canal radicular. Após o preparo químico-mecânico, as amostras foram submetidas à microscopia eletrônica de varredura. As imagens do forame apical foram ampliadas em 75x, em posições padronizadas, permitindo medidas da área do forame apical antes e após a preparação do canal radicular e após o preenchimento do canal radicular. A forma do forame apical e o transporte apical, bem como o nível de seu preenchimento circunferencial após a preparação do canal radicular, foram acessados usando o sistema de subtração de imagem. Resultados: a análise por microscopia eletrônica de varredura demonstrou que as amostras do Grupo 1 apresentaram maior diâmetro foraminal do que as amostras do Grupo 2 (p<0,05). O transporte do forame apical foi estatisticamente diferente entre os grupos 1 e 2 (p = 0,0108). Além disso, o selamento do forame apical também diferiu estatisticamente entre os grupos 1 e 2 (p=0,0007) e 100% das amostras do grupo 1 apresentaram selamento apical do canal radicular. Conclusão: o selamento apical do canal radicular foi mais eficaz quando o preparo do canal radicular foi realizado com aumento do forame apical, mesmo quando o transporte apical foi detectado.

Downloads

Não há dados estatísticos.

Referências

ALBUQUERQUE, P.P., et al. Influence of foraminal enlargement on the apical extrusion of filling material: Volumetric analysis using micro-computed tomography. Australian Endodontic Journal. 2020, 46(2), 210-216. https://doi.org/10.1111/aej.12394

BENATTI, O., et al. A histological study of the effect of diameter enlargement of the apical portion of the root canal. Journal of Endodontics. 1985, 11(10), 428-434. https://doi.org/10.1016/S0099-2399(85)80080-7

BORLINA, S.C., et al. Influence of apical foramen widening and sealer on the healing of chronic periapical lesions induced in dogs’ teeth. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics. 2010, 109(6), 932-940. https://doi.org/10.1016/j.tripleo.2010.01.028

BRANDÃO, P.M., et al. Influence of foraminal enlargement on the healing of periapical lesions in rat molars. Clinical Oral Investigations. 2019, 23(4), 1985-1991. https://doi.org/:10.1007/s00784-018-2628-2

BUCHANAN, L.S. The standardized-taper root canal preparation – Part 1. Concepts for variably tapered shaping instruments. International Endodontic Journal. 2001, 33(6), 516-529. https://doi.org/10.1046/j.1365-2591.2000.00384.x

CARD, S.J., et al. The effectiveness of increased apical enlargement in reducing intracanal bacteria. Journal of Endodontics, 2002, 28(11), 779–783. https://doi.org/10.1097/00004770-200211000-00008

CHUGAL, N.M., CLIVE, J.M. and SPANGBERG, L.S.W. Endodontic infection: some biologic and treatment factors associated with outcome. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics. 2003, 96(1), 81-90. https://doi.org/10.1016/S1079-2104(02)91703-8

ENDO, M.S., SOARES, A.J. and SOUZA-FILHO, F.J. Análise morfológica do forame apical após o preparo endodôntico com patência e ampliação foraminal. Revista da Associação Paulista de Cirurgiões Dentistas. 2011, 65(2), 145-151. ISSN: 0004-5276.

HOLLAND, R., et al. Influence of apical patency and filling material on healing process of dogs' teeth with vital pulp after root canal therapy. Brazilian Dental Journal. 2005, 16(1), 9-16. http://dx.doi.org/10.1590/S0103-64402005000100002

JARA, C.M., et al. Influence of apical enlargement on the repair of apical periodontitis in rats. International Endodontic Journal. 2018, 51(11), 1261-1270. https://doi.org/10.1111/iej.12949

MOHAMMADI, Z., et al. Establishing Apical Patency: To be or not to be? Journal of Contemporary Dental Practice. 2017, 18(4), 326-329. https://doi.org/10.5005/jp-journals-10024-2040

MOUNCE, R. What is apical patency and does it matter? Compendium of Continuing Education in Dentistry (Jamesburg, N.J. : 1995). 2005, 26(1), 62-66.

NEGISHI, J., KAWANAMI, M. and OGAMI, E. Risk analysis of failure of root canal treatment for teeth with inaccessible apical constriction. Journal of Dentistry. 2005, 33(5), 399-404. https://doi.org/10.1016/j.jdent.2004.11.003

PERASSI, F.T., et al. Secretion of tumor necrosis factor-alpha by mouse peritoneal macrophages in the presence of dental sealers, Sealapex and Endomethasone. Journal of Endodontics. 2004, 30(7), 534-537. https://doi.org/10.1097/00004770-200407000-00017

POMEL, L., et al. Apical leakage of four endodontic sealers. Journal of Endodontics. 2003, 29(3), 208-210. https://doi.org/10.1097/00004770-200303000-00011

RICUCCI, D. Apical limit f root canal instrumentation and obturation, part 1. Literature review. International Endodontic Journal. 1998, 31(6), 344-393. https://doi.org/10.1046/j.1365-2591.1998.00184.x

RICUCCI, D. and LANGELAND, K. Apical limit f root canal instrumentation and obturation, part 2. A histological study. International Endodontic Journal. 1998, 31(6), 394-409. https://doi.org/10.1046/j.1365-2591.1998.00183.x

ROLLISON, S., BARNETT, F. and STEVENS, R.H. Efficacy of bacterial removal from instrumented root canals in vitro related to instrumentation technique and size. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics. 2002, 94(3), 366-371. https://doi.org/10.1067/moe.2002.126164

DE CARVALHO MACIEL, A.C. and ZACCARO SCELZA, M.F. Efficacy of automated versus hand instrumentation during root canal retreatment: an ex vivo study. International Endodontic Journal. 2006, 39(10), 779-784. https://doi.org/10.1111/j.1365-2591.2006.01148.x

SCHAEFFER, M.A., WHITE, R.R. and WALTON, R.E. Determining the optimal obturation length: a meta-analysis of literature. Journal of Endodontics. 2005, 31(4), 271–274. https://doi.org/10.1097/01.don.0000140585.52178.78

SCHILDER, H. Filling root canals in three dimensions. Journal of Endodontics. 2006, 32(4), 281-290. https://doi.org/10.1016/j.joen.2006.02.007

SILVA, E.A.B., et al. Evaluation of effect of foraminal enlargement of necrotic teeth on postoperative symptoms: A systematic review and meta-analysis. Journal of Endodontics. 2017, 43(12), 1969-1977. https://doi.org/10.1016/j.joen.2017.07.014

SILVA, J.M., et al. Influence of working length and foraminal enlargement on foramen morphology and sealing ability. Indian Journal of Dental Research. 2016, 27(1), 66-72. https://doi.org/10.4103/0970-9290.179834

SILVA-SANTOS, A.M., et al. Foraminal deformation after foraminal enlargement with rotary and reciprocating kinematics: A scanning electronic microscopy study. Journal of Endodontics. 2018, 44(1), 145-148. https://doi.org/10.1016/j.joen.2017.08.013

SOUSA-NETO, M.D., et al. Root canal preparation using micro-computed tomography analysis: a literature review. Brazilian Oral Research. 2018, 32, 20-43. https:// doi.org/10.1590/1807-3107bor-2018.vol32.0066

SOUZA, R.A. Clinical and radiographic evaluation of the relation between the apical limit of root canal filling and the success in Endodontics. Part 1. Brazilian Endodontic Journal. 1998, 3, 43-48.

SOUZA-FILHO, F.J., BENATTI, O. and ALMEIDA, O.P. Influence of the enlargement of the apical foramen in periapical repair of contaminated teeth of dog. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics. 1987, 64(4), 480-484. https://doi.org/10.1016/0030-4220(87)90157-5

TAN, B.T. and MESSER, H.H. The quality of apical canal preparation using hand rotary instruments with specific criteria for enlargement based on initial apical file size. Journal of Endodontics. 2002, 28(9), 658-664. https://doi.org/10.1097/00004770-200209000-00008

USMAN, N., BAUMGARTNER, J.C. and MARSHALL, J.G. Influence of instrument size on root canal debridement. Journal of Endodontics. 2004, 30(2), 110-112. https://doi.org/10.1097/00004770-200402000-00012

VENTURI, M. An ex-vivo evaluation of a gutta-percha filling technique when used with two endodontic sealers: Analysis of the filling of main and lateral canals. Journal of Endodontics. 2008, 34(9), 1105-1110. https://doi.org/10.1016/j.joen.2008.06.017

WU, M.K., FAN, B. and WESSELINK, P.R. Leakage along apical root fillings in curved canals. Part I. Effects of apical trans- portation on seal of root fillings. Journal Endodontics. 2000, 26(4), 210–216. https://doi.org/ 10.1097/00004770-200004000-00003 ISSN 0099-2399

WU, M.K., et al. Does the first file to bind correspond to the diameter of the canal in the apical region? International Endodontic Journal. 2002, 35(3), 264-267. https://doi.org/10.1046/j.1365-2591.2002.00474.x

WU, M.K., et al. Prevalence and extent of long oval canals in the apical third. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics. 2000, 89(6), 739-743. https://doi.org/10.1067/moe.2000.106344