TO EVALUATE AND COMPARE LENGTH OF RESIN TAG FORMATION AT THE TOOTH-COMPOSITE INTERFACE AFTER USING DIFFERENT TEETH FINISHING SYSTEMS THAT INCLUDES COMPOSITE FINISHING BURS, CARBIDE BURS AND ND: YAG LASERS

Dr. Swapnil Khadtare, Dr. Ishan Ahmed*, Dr. Shalini Aggarwal, Dr. Poorva Kurtarkar, Dr. Rhea Digholkar, Dr. Tushita Pandey

ABSTRACT

Objectives: The aim of this study was to determine and compare resin tag length at tooth composite restoration after using three different cavity finishing systems. Materials and Methods: Sixteen extracted intact maxillary or mandibular teeth were selected and divided into 4 groups (n=4) as Group 1: control group no cavity finishing system used, Group 2: Carbide burs (Mani) used, Group 3: Composite burs(Mani) used, Group 4: Nd:YAG Laser (Epic X, Biolase) used. Class 5 cavities of same dimensions were prepared on buccal surface of each sample. Mass of 0.5% Rhodamine dye added to bonding agent after using cavity finishing systems and composite restorations were done. The specimens were sectioned Labio-lingual manner and processed for viewing under CLSM to obtain images of bonded interfaces. One way ANOVA test with Tukey Kramer multiple comparison test was applied to test the comparison of all groups together at 5% (p=0.05) and 1% (p=0.01) level of significance. Results: Length of resin tag was significantly influenced by cavity finishing systems. Group 3 had maximum depth of resin penetration 432.67±58.00 m followed by Group 4 at 382.52±43.44 m, Group 2 at 235.43±19.33and Group1 that was control group was least having minimum value 187.44±19.87 m. The results from this study concluded that composite cavity finishing system and Nd:YAG lasers produced best results. Conclusions: The use of composite finishing system as well as lasers before resin composite restorations results into longer resin tag penetration, which contribute to better bond strength, and lesser incidence of cohesive failure.

Keywords: Objectives: The aim of this study was to determine and compare resin tag length at tooth composite restoration after using three different cavity finishing systems. Materials and Methods: Sixteen extracted intact maxillary or mandibular teeth were selecte