Acessibilidade / Reportar erro

Comparison of three obturation techniques with regard to bacterial leakage

Abstract

AIM: To compare bacterial leakage in root canals obturated with the modified single-cone, lateral condensation, and continuous wave of condensation techniques. METHODS: Distobuccal root canals of maxillary molars were shaped up to ProTaper F2 and obturated with modified singlecone, lateral condensation or continuous wave of condensation technique. Two-chamber bacterial model using Enterococcus faecalis was employed for bacterial leakage evaluation for 30 days. The chi-square test was applied to evaluate differences between turbid and non-turbid samples, and the Kruskal-Wallis test was used for evaluating the time necessary for microleakage. A significance level of 5% was set for all analyses. RESULTS: The modified single-cone technique showed leakage in 73.3% of samples, lateral condensation in 66.6%, and continuous wave of condensation in 53.3%, but there were no significant differences among the groups (p>0.05). CONCLUSIONS: It can be concluded that the modified single-cone technique shows similar sealing efficacy to that of lateral condensation and continuous wave of condensation technique.

dental leakage; Enterococcus faecalis; root canal obturation


  • 1
    Peters DD. Two-year in vitro solubity evaluation of four gutta-percha sealer obturation techniques. J Endod. 1986; 12: 139-45.
  • 2
    Hembrough MW, Steiman HR, Belanger KK. Lateral condensation in canals prepared with nickel titanium rotary instruments: an evaluation of the use of three different master cones. J Endod. 2002; 28: 516-9.
  • 3
    Gabardo MCL, Silva WJ, Gonçalves LM, Deonízio MDA. Effectiveness of different obturation techniques in surpassing the ledge formed in simulated curved canals. Braz J Oral Sci. 2013; 12: 138-42.
  • 4
    Yelton C, Walker MP, Lee C, Dryden JA, Kulild JC. Assessment of a thermoplasticized gutta-percha delivery system to effectively obturate canals with varying preparation dimensions. J Endod. 2007; 33: 156-9.
  • 5
    Ozawa T, Taha N, Messer HH. A comparison of techniques for obturating oval-shaped root canals. Dent Mat J. 2009; 28: 290-4.
  • 6
    Somma F, Cretella G, Carotenuto M, Pecci R, Bedini R, De Biasi M, et al. Quality of thermoplasticized and single point root fillings assessed by microcomputed tomography. Int Endod J. 2011; 44: 362-9.
  • 7
    Marciano MA, Ordinola-Zapata R, Cunha TVRN, Duarte MAH, Cavenago BC, Garcia RB, et al. Analysis of four gutta-percha techniques used to fill mesial root canals of mandibular molars. Int Endod J. 2011; 44: 321-9.
  • 8
    Gordon MPJ, Love RM, Chandler NP. An evaluation of .06 tapered guttapercha cones for filling of .06 taper prepared curved root canals. Int Endod J. 2005; 38: 87-96.
  • 9
    Machado MEL, Sapia LAB, Cai S, Martins GHR, Nabeshima CK. Comparison of two rotary systems in root canal preparation regarding disinfection. J Endod. 2010; 36: 1238-40.
  • 10
    Araquam KR, Britto MLB, Nabeshima CK. Comparison of two single-cone obturation techniques. Endo (Lond Engl). 2011; 5: 133-7.
  • 11
    Rechenberg D-K, De-Deus G, Zehnder M. Potential systematic error in laboratory experiments on microbial leakage through filled root canals: review of published articles. Int Endod J. 2011; 44: 183-94.
  • 12
    Gilhooly RMP, Hayes SJ, Bryant ST, Dummer PMH. Comparison of lateral condensation and thermomechanically compacted warm á-phase guttapercha with a single cone for obturating curved root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001; 91: 89-94.
  • 13
    Zmener O, Pameijer CH, Macri E. Evaluation of the apical seal in root canals prepared with a new rotary system and obturated with a methacrylate based endodontic sealer: an in vitro study. J Endod. 2005; 31: 392-5.
  • 14
    Machado R, Silva Neto UX, Ignácio SA, Cunha RS. Lack of correlation between obturation limits and apical leakage. Braz Oral Res. 2013; 27: 331-5.
  • 15
    Monticelli F, Sword J, Martin RL, Schuster GS, Weller RN, Ferrari M, Pashley DH, Tay FR. Sealing properties of two contemporary single-cone obturation system. Int Endod J. 2007; 40: 374-85.
  • 16
    Vasconcelos BC, Bernardes RA, Duarte MAH, Bramante CM, Moraes IG.Apical sealing of root canal fillings performed with five different endodontic sealers: analysis by fluid filtration. J Appl Oral Sci. 2011; 19: 324-8.
  • 17
    Jacobson HLJ, Xia T, Braumgartner JC, Marshall G, Beeler WJ. Microbial leakage evaluation of the continuous wave of condensation. J Endod. 2002; 28: 269-71.
  • 18
    De-Deus G, Murad CF, Reis CM, Gurgel-Filho E, Coutinho Filho T. Analysis of the sealing ability of different obturation techniques in oval-shaped canals: a study using a bacterial leakage model. Braz Oral Res. 2006; 20: 64-9.
  • 19
    Yücel AÇ, Çiftçi A. Effects of different root canal obturation techniques on bacterial penetration. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006; 102: e88-92.
  • 20
    Baumgartner G, Zehnder M, Paqué F. Enterococcus faecalis type strain leakage through root canals filled with gutta percha/AH Plus or Resilon/ Epiphany. J Endod. 2007; 33: 45-7.
  • 21
    Monticelli F, Sadek FT, Schuster GS, Volkmann KR, Looney SW, Ferrari M, et al. Efficacy of two contemporary single-cone filling techniques in preventing bacterial leakage. J Endod. 2007; 33: 310-3.
  • 22
    Taºdemir T, Er K, Yildirim T, Buruk K, Çelik D, Cora S, et al. Comparison of the sealing ability of three filling techniques in canals shaped with two different rotary systems: A bacterial leakage study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009; 108: e129-34.
  • 23
    Nawal RR, Parande M, Sehgal R, Rao NR, Naik A. A comparative evaluation of 3 root canal filling systems. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011; 111: 387-93.
  • 24
    Kangarlou A, Dianat O, Esfahrood ZR, Asharaf H, Zandi B, Eslami G. Bacterial leakage of GuttaFlow-filled root canals compared with Reasilon/ Epiphany and Gutta-percha/AH26- filled root canals. Aust Endod J. 2012; 38: 10-3.
  • 25
    De-Deus G, Murad C, Paciornik S, Reis CM, Coutinho-Filho T. The effect of the canal-filled area on the bacterial leakage of oval-shaped canals. Int Endod J. 2008; 41: 183-90.
  • 26
    Sedgley CM, Lennan SL, Appelbe OK. Survival of Enterococcus faecalis in root canals ex vivo. Int Endod J. 2005; 38: 735-42.
  • 27
    Gomes BPFA, Pinheiro ET, Jacinto RC, Zaia AA, Ferraz CCR, Souza-Filho FJ. Microbial analysis of canals of root-filled teeth with periapical lesions using Polymerase Chain Reaction. J Endod. 2008; 34: 537-40.
  • 28
    Siqueira Jr JF, Rôças IN, Alves FRF, Campos LC. Periradicular status related to the quality of coronal restorations and root canal fillings in a Brazilian population. Oral Surg Oral Med Oral Pathol Oral radiol Endod. 2005; 100: 369-74.

Publication Dates

  • Publication in this collection
    28 Oct 2013
  • Date of issue
    Sept 2013

History

  • Received
    05 Aug 2013
  • Accepted
    11 Sept 2013
Faculdade de Odontologia de Piracicaba - UNICAMP Avenida Limeira, 901, cep: 13414-903, Piracicaba - São Paulo / Brasil, Tel: +55 (19) 2106-5200 - Piracicaba - SP - Brazil
E-mail: brjorals@unicamp.br