title: A comparative study of apical leakage of Endomethasone, Top Seal, and Roeko Seal sealer cements.
abstract: A comparison was made of the apical leakage of three sealers. Fifty single-root human teeth were randomly divided into 5 groups (n = 10; 3 experimental and 2 control). The teeth of the positive-control and experimental groups were instrumented with K-type files to size 45. The experimental groups were obturated by laterally-vertically, condensed gutta-percha with Endomethasone, Top Seal, or RSA sealer cements. The positive-control group was nonobturated and the negative-control group was noninstrumented. The root surfaces were then coated with nail varnish (except the apex in the experimental groups) and immersed in black ink (for 1 week at 37 degrees C). The statistical evaluation of the results obtained by clearing and cross-section techniques showed no significant differences between sealers. Leakage, as determined by the clearing technique, was significantly greater than that quantified by cross-section analysis.
authors.affiliation: Department of Dental Pathology and Therapeutics, School of Dentistry, University of Granada, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Lucena-Martín
authors.forename: C M
authors.initials: CM
authors.lastname: Ferrer-Luque
authors.forename: M P
authors.initials: MP
authors.lastname: González-Rodríguez
authors.forename: V
authors.initials: V
authors.lastname: Robles-Gijón
authors.forename: J M
authors.initials: JM
authors.lastname: Navajas-Rodríguez de Mondelo
mesh_terms: D000287:Administration, Topical; D000704:Analysis of Variance; D000893:Anti-Inflammatory Agents; D003738:Dental Cements; D003763:Dental Leakage / Q000517:prevention & control; D003907:Dexamethasone; D004338:Drug Combinations; D004853:Epoxy Resins; D005557:Formaldehyde; D006801:Humans; D006854:Hydrocortisone; D011897:Random Allocation; D012387:Root Canal Filling Materials; D013943:Thymol / Q000031:analogs & derivatives*; D019227:Tooth Apex
chemical_list: D000893:Anti-Inflammatory Agents; D003738:Dental Cements; D004338:Drug Combinations; D004853:Epoxy Resins; D012387:Root Canal Filling Materials; C115110:Topseal; C011244:corticosteroid methanetriol mixture; C465381:roeko seal; D005557:Formaldehyde; D013943:Thymol; D003907:Dexamethasone; D006854:Hydrocortisone