Microleakage of endodontic temporary restorative materials under dynamic loading.
10.5395/JKACD.2008.33.3.198
- Author:
Dong Ho JUNG
1
;
Young Sin NOH
;
Hae Doo LEE
;
Hoon Sang CHANG
;
Hyun Wook RYU
;
Kyung San MIN
Author Information
1. Department of Conservative Dentistry, College of Dentistry, Wonkwang University, Korea. mksdd@wonkwang.ac.kr
- Publication Type:Original Article
- Keywords:
Microleakage;
Temporary restorative material;
Dynamic loading
- MeSH:
Axis, Cervical Vertebra;
Calcium Sulfate;
Dental Cements;
Humans;
Methylene Blue;
Molar;
Root Canal Filling Materials;
Tooth;
Vinyl Compounds;
Zinc Oxide
- From:Journal of Korean Academy of Conservative Dentistry
2008;33(3):198-203
- CountryRepublic of Korea
- Language:English
-
Abstract:
The purpose of this study was to compare the sealing abilities of four endodontic temporary restorative materials using a methylene blue dye penetration test under dynamic loading. Standardized access cavities were prepared in forty-four intact human permanent molar teeth, and the cavities were restored with Caviton, MD-Temp, IRM, or ZOE. After thermocycling, an intermittent load of 98 N at 1 Hz was applied for 1,000 cycles to the long axis of the functional cusp of each of the teeth, which were immersed in a 1% methylene blue solution. The teeth were split in half, and the linear depth of dye penetration was evaluated according to the criteria. The results were analyzed using one-way ANOVA (p = 0.05) and Duncan's multiple range test. The results demonstrated that Caviton and MD-Temp showed significantly lower microleakage than IRM and ZOE. It was concluded that Caviton and MD-Temp exhibited better sealing ability than IRM and ZOE under dynamic loading.
