Radiographic analysis of root canal fillings: influence of two sealers on the perception of voids.
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% 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.
Bodanezi
Augusto
A
Department of Dentistry, Endodontics and Dental Materials, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil. aboda@usp.br
Munhoz
Etiene de Andrade
Ede A
Bernardineli
Norberti
N
Capelozza
Ana Lúcia Alvares
AL
de Moraes
Ivaldo Gomes
IG
Bramante
Clovis Monteiro
CM
D001729:Bismuth / Q000737:chemistry; D002126:Calcium Hydroxide / Q000737:chemistry; D003481:Cuspid; D018772:Dental Marginal Adaptation / Q000592:standards*; D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging*; D003907:Dexamethasone / Q000737:chemistry; D004338:Drug Combinations; D005557:Formaldehyde / Q000737:chemistry; D006801:Humans; D006854:Hydrocortisone / Q000737:chemistry; D008437:Maxilla; D015588:Observer Variation; D011861:Radiography, Dental / Q000592:standards*; D015203:Reproducibility of Results; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation / Q000592:standards*; D012680:Sensitivity and Specificity; D018709:Statistics, Nonparametric; D013943:Thymol / Q000031:analogs & derivatives / Q000737:chemistry
D004338:Drug Combinations; D012387:Root Canal Filling Materials; C080620:Sealer 26; C011244:corticosteroid methanetriol mixture; D005557:Formaldehyde; D013943:Thymol; D003907:Dexamethasone; D002126:Calcium Hydroxide; D001729:Bismuth; D006854:Hydrocortisone