Extrusion evaluation of root filling material during thermomechanical condensation of gutta-percha using different apical plugs
Keywords:
Root canal filling, Gutta-percha, Tooth apexAbstract
Aim: To analyze the extrusion of root filling material during thermomechanical condensation of gutta-percha using apical plugs of calcium hydroxide associated with iodoform or Mineral Trioxide Aggregate (MTA).
Materials and Methods: Thirty permanent canines were used, divided into three groups: G1 - MTA apical plug; G2 - Calcium hydroxide associated with iodoform plugs; and G3 (control) - no apical plug. After filling the root canal, the extruded material could be observed through the direct analysis of the apex using a magnifying glass. The data obtained were evaluated by the chi- square test at a significance level of 5%.
Results: Calcium hydroxide associated with iodoform apical plugs proved to be similar to the control group, both of which were statistically different from the MTA apical plug (p=0.024).
Conclusion: The MTA apical plug proved to be more effective in controlling the material extrusion of the root filling during the thermomechanical technique.
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References
Machado MEL. Endodontia da biologia a técnica. São Paulo: Santos; 2007.
Kontakiotis EG, Wu MK, Wesselink PR. Effect of sealer thickness on long-term sealing ability: a 2-year follow-up study. Int Endod J. 1997; 30:307-12.
Peters DD. Two-year in vitro solubility evaluation of four gutta-percha sealer obturation techniques. J Endod. 1986; 12:139-45.
Clinton K, Himel VT. Comparison of a warm gutta-percha obturation technique and lateral condensation. J Endod. 2001; 27:692-5.
Al-Dewani N, Hayes SJ, Dummer PMH. Comparison of laterally condensed and lowtemperature thermoplasticized gutta-percha root fillings. J Endod. 2000; 26:733-8.
Cavatoni M, Britto MLB, Rapoport A. Avaliação in vitro da qualidade das obturações termoplastificadas: Thermafill e Obtura II. EJER. 2009; 8:204-14.
Holtz AP, Machado MEL. Estudo da extrusão apical em canais simulados obturados pela gutapercha termoplastificada (Successfil). J Bras Odontol Clin. 1998; 2:69-72.
Strefezza F. Avaliação quantitativa e qualitativa da extrusão apical em técnicas de obturação termoplastificada [tese]. São Paulo: Faculdade de Odontologia da USP; 2004.
Davini F, Cunha RS, Bueno CES, Fontana CE, Miguita KB, Martin AS. Resposta tecidual subcutânea em ratos frente a implantes de cones de guta-percha e cones de resilon. Rev Assoc Paul Cir Dent. 2008; 62:309-13.
Leonardo MR, Utrilla LS, Rothier A, Leonardo RT, Consolaro A. Comparison of subcutaneous connective tissue responses among three different formulations of gutta-percha used in thermatic techniques. Int Endod J. 1990; 23:211-7.
Senne MI, Lemos N, Fidel SR, Fidel RAS. Avaliação da citotoxicidade dos três cimentos Rebelo et al. Avaliação da extrusão de material obturador utilizando tampões apicais endodônticos empregados na obturação do sistema de canais radiculares. RSBO. 2009; 6:71- 6.
Gilhooly RMP, Hayes SJ, Bryant ST, Dummer PMH, Wales C. Comparison of lateral condensation and thermomechanically compacted warm α-phase gutta-percha with a single cone for obturating curved root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001; 91:89-94.
Ricucci D, Langeland K. Apical limit of root canal instrumentation and obturation, part 2: a histological study. Int Endod J. 1998; 31:394- 409.
Odesjo B, Hellden L, Salonen L, Langeland K. Prevalence of previous endodontic treatment, technical standard and occurrence of periapical lesions in a randomly selected adult, general population. Endod Dent Traumatol. 1990; 6:265- 72.
Utrila LS, Leonardo MR, Cabral MMG, Silva LAB. Estudo comparativo do comportamento dos tecidos apicais e periapicais frente a duas técnicas de obturação de canais radiculares com guta-percha termoplastificada. Rev Bras Odontol. 1995; 52:32-8.
Estrela C, Sydney GB, Bamman LL, Fellippe Júnior O. Mechanism of calcium hydroxide and hydroxyl ions of calcium hydroxide on tissue and bacteria. Braz Dent J 1995; 6:85-90.
Toledo R, Britto MLB, Pallotta RC, Nabeshima CK. Hidróxido de cálcio e iodofórmio no tratamento endodôntico de dentes com rizogênese incompleta. Int J Dent. 2010; 9: 28-37.
Parirokh M, Torabinejad M. Mineral trioxide aggregate: a comprehensive literature review: part I: chemical, physical, and antibacterial properties. J Endod. 2010; 36:16-27.
Mente J, Hage N, Pfefferle T, Koch MJ, Dreyhaupt J, Staehle HJ, et al. Mineral trioxide aggregate apical plugs in teeth with open apical foramina: a retrospective analysis of treatment outcome. J Endod. 2009; 35:1354-8.
Gil AC, Nakamura VC, Lopes RP, Lemos EM, Calil E, Amaral KF. Revisão contemporânea da obturação termoplastificada, valendo-se da técnica de compactação termomecânica. Rev Saúde. 2009; 3:20-9.
Gulabivala K, Holt R, Long B. An in vitro comparison of thermoplasticised guttapercha obturation techniques with cold lateral condensation. Endod Dent Traumatol. 1998; 14:262-9.
Camões ICG, Victor FL, Gomes CC, Freitas LF, Pinto SS. Estudo comparativo entre duas técnicas obturadoras: condensação lateral x híbrida de Tagger. Pesq Bras Odontoped Clin Integr. 2007;7:217-22.
Batista A, Sydney GB, Deonizio MD. Análise “in vitro” da viabilidade do uso do MTA e do hidróxido de cálcio como plug apical em dentes com rizogênese incompleta. ROBRAC. 2007. 16:7-17.
Consolmagno EC, Orosco FA, Garcia RB, Bernardineli N, Bramante CM. Deslocamento de tampões apicais confeccionados com a pasta L&C submetidos a três técnicas de obturação. Rev Odontol UNESP. 2008; 37(Suppl2):4.
ElDeeb ME, ElDeeb M, Tabibi A, Jensen JR. An evaluation of the use amalgam, cavit, and calcium hydroxide in the repair of furca perforation. J Endod. 1982; 8:459-66.
