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Radiographic analysis of root canal fillings: influence of two sealers on the perception of voids
Bodanezi, Augusto; Munhoz, Etiene de Andrade; Bernardineli, Norberti; Capelozza, Ana Lúcia Álvares; Moraes, Ivaldo Gomes de; Bramante, Clovis Monteiro.
  • Bodanezi, Augusto; University of São Paulo. Bauru Dental School. Department of Dentistry, Endodontics and Dental Materials. Bauru. BR
  • Munhoz, Etiene de Andrade; University of São Paulo. Bauru Dental School. Department of Stomatology, Radiology and Oral Surgery. Bauru. BR
  • Bernardineli, Norberti; University of São Paulo. Bauru Dental School. Department of Dentistry, Endodontics and Dental Materials. Bauru. BR
  • Capelozza, Ana Lúcia Álvares; University of São Paulo. Bauru Dental School. Department of Stomatology, Radiology and Oral Surgery. Bauru. BR
  • Moraes, Ivaldo Gomes de; University of São Paulo. Bauru Dental School. Department of Dentistry, Endodontics and Dental Materials. Bauru. BR
  • Bramante, Clovis Monteiro; University of São Paulo. Bauru Dental School. Department of Dentistry, Endodontics and Dental Materials. Bauru. BR
Braz. dent. j ; 21(2): 142-147, 2010. tab, ilus
Article in English | LILACS | ID: lil-551935
ABSTRACT
The aim of this ex vivo was to investigate if two radiopaque root canal sealers with different formulations would influence the radiographic perception of root canal fillings. The root canals of 48 extracted maxillary canines were prepared and randomly assigned to 3 groups of 16 specimens each. In each group, the root canals were filled by lateral condensation of gutta-percha and one of the tested sealers Endométhasone, Sealer 26, or a non-radiopaque sealer. A through-and-through void was simulated in half of the specimens from each group (n=8). The buccolingual radiographic images obtained were randomly interpreted for voids existence by a radiologist and an endodontist. The differences in sensitivity and specificity between groups and examiners were compared using, respectively, Fisher's Exact and McNemar tests at 5 percent significance level. Both radiopaque sealers caused a significant decrease in sensitivity at the coronal part of fillings. The use of Endométhasone increased specificity values for both coronal and apical portions of the root canal fillings. In conclusion, the tested sealers influenced the radiographic perceptions of laterally condensed root canal fillings in a different way.
RESUMO
O propósito deste estudo ex vivo foi investigar se dois cimentos obturadores de fórmulas diferentes influenciariam a percepção radiográfica de obturações de canais radiculares. Os canais radiculares de 48 caninos superiores extraídos foram preparados e divididos em 3 grupos. Em cada grupo os canais foram preenchidos através da condensação lateral da guta-percha e de um dos cimentos testados (Endométhasone, Sealer 26 e cimento não-radiopaco), e um defeito de ponta a ponta foi simulado em metade dos espécimes de cada grupo (n=8). As imagens radiográficas vestíbulo-linguais obtidas foram aleatoriamente interpretadas quanto à existência de defeitos por um radiologista e um endodontista. As diferenças em sensibilidade e especificidade entre os grupos e examinadores foram comparadas respectivamente usando-se os testes Exato de Fisher e McNemar ajustados ao nível de significância de 5 por cento. Ambos os cimentos radiopacos ocasionaram uma redução significativa da sensibilidade na parte cervical das obturações. O uso do Endométhasone aumentou os valores de especificidade para as porções cervical e apical das obturações dos canais radiculares. Concluiu-se que os cimentos testados influenciaram de maneira distinta a percepção radiográfica de obturações endodônticas executadas com condensação lateral.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Root Canal Obturation / Radiography, Dental / Dental Marginal Adaptation / Dental Pulp Cavity Type of study: Controlled clinical trial / Diagnostic study Limits: Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2010 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Root Canal Obturation / Radiography, Dental / Dental Marginal Adaptation / Dental Pulp Cavity Type of study: Controlled clinical trial / Diagnostic study Limits: Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2010 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo/BR