Newer Possibilities for Proximal Box Elevation – Tooth Substrate and Comparison with Conventional Materials: An Ex-vivo Study

Background: Adhesive bonding in deep sub-gingival areas is a challenge due moist environment leading to poor marginal seal and microleakage class II cavities. The margin elevation technique advocated such areas.
 Aim: aim of this study evaluate enamel, natural substrate as an alternative material for elevation, compare it with the resin-modified glass ionomer composite by evaluating at tooth-restoration interface Class cavities.
 Materials Methods: For 21 patients having least one tooth indicated extraction 7 two teeth were included.Class cavities prepared on 28 proximal margins 1mm below CEJ divided into 4 groups(n=7) Group 1: flowable was used elevation(DME) up till 2mm above CEJ, 2: RMGIC DMEup 2 mm 3: enamel slab luted (for DME)up CEJ,enamel obtained from other seven same patient also extraction, 4(control): no intermediate elevation. Then remaining part restored using FILTEK P60. extracted after week. evaluated dye penetration method.
 Results: showed significantly less compared control group. However there insignificant difference between Enamel group exhibited highest all groups.
 Conclusion: exhibit when materials deep-margin