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Influence of prior 810-nm-diode intracanal laser irradiation on hydrophilic resin-based sealer obturation
Moura-Netto, Cacio; Palo, Renato Miotto; Camargo, Samira Esteves Afonso; Jent, Carol; Leonardo, Renato de Toledo; Marques, Marcia Martins.
  • Moura-Netto, Cacio; Universidade Cruzeiro do Sul. Dental School. Department of Endodontics. São Paulo. BR
  • Palo, Renato Miotto; Univ. Estad. Paulista. Dental School. Department of Endodontics. São José dos Campos. BR
  • Camargo, Samira Esteves Afonso; Univ. Estad. Paulista. Dental School. Department of Biochemistry. São José dos Campos. BR
  • Jent, Carol; Ultradent Products, Inc..
  • Leonardo, Renato de Toledo; Univ. Estad. Paulista. Dental School. Department of Endodontics. Araraquara. BR
  • Marques, Marcia Martins; Universidade de São Paulo. Dental School. Department of Endodontics. São Paulo. BR
Braz. oral res ; 26(4): 323-329, July-Aug. 2012. ilus, tab
Article in English | LILACS | ID: lil-640717
ABSTRACT
Dentin wall structural changes caused by 810-nm-diode laser irradiation can influence the sealing ability of endodontic sealers. The objective of this study was to evaluate the apical leakage of AH Plus and RealSeal resin-based sealers with and without prior diode laser irradiation. Fifty-two single-rooted mandibular premolars were prepared and divided into 4 groups, according to the endodontic sealer used and the use or non-use of laser irradiation. The protocol for laser irradiation was 2.5W, continuous wave in scanning mode, with 4 exposures per tooth. After sample preparation, apical leakage of 50% ammoniacal silver nitrate impregnation was analyzed. When the teeth were not exposed to irradiation, the RealSeal sealer achieved the highest scores, showing the least leakage, with significant differences at the 5% level (Kruskal-Wallis test, p = 0.0004), compared with AH Plus. When the teeth were exposed to the 810-nm-diode laser irradiation, the sealing ability of AH Plus sealer was improved (p = 0282). In the RealSeal groups, the intracanal laser irradiation did not interfere with the leakage index, showing similar results in the GRS and GRSd groups (p = 0.1009).
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Dental Leakage / Lasers, Semiconductor Type of study: Controlled clinical trial Limits: Humans Language: English Journal: Braz. oral res Journal subject: Dentistry Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Univ. Estad. Paulista/BR / Universidade Cruzeiro do Sul/BR / Universidade de São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Dental Leakage / Lasers, Semiconductor Type of study: Controlled clinical trial Limits: Humans Language: English Journal: Braz. oral res Journal subject: Dentistry Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Univ. Estad. Paulista/BR / Universidade Cruzeiro do Sul/BR / Universidade de São Paulo/BR