Effect of lining application techniques on microleakage in class II composite restorations
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Purpose: The purpose of this study was to investigate the microleakage in class II cavity resin restorations used with resin-modified glass ionomer (RMGI) lining material depending on two different applying methods; classical delivery method using a dentalexplorer and a specially designed rotating bur. Materials and Methods: A total thirty-six extracted teeth were prepared with a classII proximal box, and randomly divided into three groups: 1) control group with no lining added and the proximal box restored (Group I), 2) the second group used RMGI as a lining material which was spread with an explorer (Group II), 3) the third group used a specially designed rotating bur to thin out RMGI (Group III). All teeth were restored with the same manner using incrementally placed resin composite. All 36 teeth were prepared and sectioned for the dye penetration test, and observed with a stereomicroscope for scoring the dye penetration. Results: When RMGI liners were used, both groups using an explorer and the special bur with the liner had significantly less microleakage than the control group with no liner (P < 0.05). The 50% of the group with RMGI liner using the bur showed no microleakage under a dye penetration test whereas all the teeth in control group showed microleakage of different degrees. However, there was no statistically significant difference between Group II and Group III. Conclusion: RMGI is an effective lining material to decrease microleakage in class II composite resin restorations regardless of applying methods.
Abstract
Purpose: The purpose of this study was to investigate the microleakage in class II cavity resin restorations used with resin-modified glass ionomer (RMGI) lining material depending on two different applying methods; classical delivery method using a dentalexplorer and a specially designed rotating bur. Materials and Methods: A total thirty-six extracted teeth were prepared with a classII proximal box, and randomly divided into three groups: 1) control group with no lining added and the proximal box restored (Group I), 2) the second group used RMGI as a lining material which was spread with an explorer (Group II), 3) the third group used a specially designed rotating bur to thin out RMGI (Group III). All teeth were restored with the same manner using incrementally placed resin composite. All 36 teeth were prepared and sectioned for the dye penetration test, and observed with a stereomicroscope for scoring the dye penetration. Results: When RMGI liners were used, both groups using an explorer and the special bur with the liner had significantly less microleakage than the control group with no liner (P < 0.05). The 50% of the group with RMGI liner using the bur showed no microleakage under a dye penetration test whereas all the teeth in control group showed microleakage of different degrees. However, there was no statistically significant difference between Group II and Group III. Conclusion: RMGI is an effective lining material to decrease microleakage in class II composite resin restorations regardless of applying methods.
참고문헌 (19)
- Ferracane JL, "Resin composite-state of the art", Dent Mater, 27, pp.29~38 (2011)
- Opdam NJ, "A retrospective clinical study on longevity of posterior composite and amalgam restorations", Dent Mater, 23, pp.2~8 (2007)
- Adams TC, "A high-density posterior composite used for an amalgam replacement", Dent Today, 18, pp.74~77 (1999)
- Pamir T, "Factors affecting microleakage of a packable resin composite: an in vitro study", Oper Dent, 30, pp.338~345 (2005)
- Roulet JF, "The problems associated with substituting composite resins for amalgam: a status report on posterior composites", J Dent, 16, pp.101~113 (1988)
- Vicente A, "Water and saliva contamination effect on shear bond strength of brackets bonded with a moisture-tolerant light cure system", Angle Orthod, 79, pp.127~132 (2009)
- Gerdolle DA, "Microleakage and polymerization shrinkage of various polymer restorative materials", J Dent Child (Chic), 75, pp.125~133 (2008)
- Tredwin CJ, "Influence of flowable liner and margin location on microleakage of conventional and packable class II resin composites", Oper Dent, 30, pp.32~38 (2005)
- Murray PE, "Bacterial microleakage and pulp inflammation associated with various restorative materials", Dent Mater, 18, pp.470~478 (2002)
- Kasraei S, "In vitro comparison of microleakage of posterior resin composites with and without liner using two-step etch-andrinse and self-etch dentin adhesive systems", Oper Dent, 36, pp.213~221 (2011)
- Gallo JR, "Microleakage and adaptation of Class II packable resin-based composites using incremental or bulk filling techniques", Am J Dent, 13, pp.205~208 (2000)
- Nadig RR, "Effect of four different placement techniques on marginal microleakage in class II composite restorations: an in vitro study", World J Dent, 2, pp.111~116 (2011)
- Guéders AM, "Microleakage after thermocycling of 4 etch and rinse and 3 self-etch adhesives with and without a flowable composite lining", Oper Dent, 31, pp.450~455 (2006)
- Kwon Y, "Effect of layering methods, composite type, and flowable liner on the polymerization shrinkage stress of light cured composites", Dent Mater, 28, pp.801~809 (2012)
- Abedian B, "An effective method for spreading flowable composites in resin-based restorations", Oper Dent, 31, pp.151~154 (2006)
- Stockton LW, "Microleakage of Class II posterior composite restorations with gingival margins placed entirely within dentin", J Can Dent Assoc, 73, pp.255~ (2007)
- Giachetti L, "A review of polymerization shrinkage stress: current techniques for posterior direct resin restorations", J Contemp Dent Pract, 7, pp.79~88 (2006)
- Choi KK, "The effects of adhesive thickness on polymerization contraction stress of composite", J Dent Res, 79, pp.812~817 (2000)
- Jongsma LA, "Influence of polymerization mode and C-factor on cohesive strength of dual-cured resin cements", Dent Mater, 28, pp.722~728 (2012)