Microleakage of cavit in varnish-lined, matrix-supported endodontic access preparations.
The effect of the application of a matrix band and the use of cavity varnish on the microleakage of Cavit in endodontic access preparations was investigated. Sixty human upper premolars were divided into six groups of ten specimens each. Access cavities with proximal extensions were prepared and filled with 1, Cavit only; 2, Cavit after application of varnish; 3, Cavit with the use of a matrix band; 4, Cavit with a matrix band and varnish; 5, incremental deposition of Cavit with the use of a matrix band and varnish; and 6, gutta percha stopping. The specimens were placed in 2% methylene blue dye, thermocycled, and evaluated for both proximal and occlusal linear leakage. The experimental group in which Cavit was incrementally deposited in varnish-lined and matrix-supported cavities exhibited significantly (p < 0.05) less proximal microleakage than those groups in which cavities were filled without the application of both a matrix band and a cavity varnish.
Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
M K
MK
Iqbal
N A
NA
Saad
D001641:Bicuspid; D002133:Calcium Sulfate; D003736:Dental Cavity Lining; D003738:Dental Cements; D003763:Dental Leakage; D003764:Dental Materials; D004338:Drug Combinations; D006801:Humans; D008434:Matrix Bands; D010150:Paint; D011145:Polyvinyls; D012116:Resins, Plant; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*; D018709:Statistics, Nonparametric; D015034:Zinc Oxide
D003738:Dental Cements; D003764:Dental Materials; D004338:Drug Combinations; D011145:Polyvinyls; D012116:Resins, Plant; D012387:Root Canal Filling Materials; C023806:Copalite; C020872:Cavit; D015034:Zinc Oxide; D002133:Calcium Sulfate