A confocal microscopic evaluation of the hybrid layer and resin tag formation of a total etch technique in comparison with self etching primers with three different pH

Baweja, Parvinder Singh; Hemamalathi, Senthilkumar; Velmurugan, Natanasabapathy; Kandaswamy, Deivanayagam

doi:10.4103/0972-0707.42270

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…35 Present study results were in agreement with other studies done on sound dentin, where in total-etch system was shown to have a better bonding capacity compared with self-etch adhesives by using various analytic techniq ues. 1,13,36,37 However, bonding in eroded teeth is a great challenge. Augusto et al and Milosevic et al have reported more adhesive failure than cohesive failure in eroded dentin which clearly indicates failure in bonding agent.…”

Section: Discussionmentioning

confidence: 99%

Comparative Evaluation of Resin Dentin Interface using Universal and Total- Etch Adhesive Systems on Sound and Eroded Dentin: In Vitro Study

2021

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Objective The study aimed to compare the resin-dentin interface of sound and eroded dentin using universal and total-etch adhesive systems. Material and Methods Forty caries-free extracted human premolars were collected, and the occlusal surfaces were ground by using slow speed diamond disc with copious water supply until a flat superficial dentin was exposed. The test group underwent erosive cycle (n = 20), and another group (n = 20) was reserved for control group. Erosive protocol consisted of immersion in 1.23% citric acid for 1 minute every 12 hours and stored in artificial saliva. Both the control and eroded teeth were further subdivided (n = 10) for composite restoration by using either self-etch or total-etch systems. Then the tooth samples were sectioned longitudinally and observed under confocal laser scanning microscope at ×10 magnification to evaluate resin tag length and hybrid layer thickness. Statistical Analysis The data obtained were analyzed by using independent t-test. Results The highest mean value of the resin tag length and thickness of hybrid layer was observed with total-etch system in sound dentin group compared with other groups (p < 0.001). Conclusion The resin-dentin interface of sound dentin was found to be better than eroded dentin by using total-etch system. The resin-dentin interface of eroded dentin was superior to sound dentin by using self-etch adhesive system.

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