Background:
Dental erosion is a debilitating condition that is commonly encountered in our everyday clinical practice due to the high consumption of acidic beverages, very little is known about the shear bond strength of these laminates bonded to eroded teeth.

Aim of the study:
The purpose of this study was to evaluate the shear bond strength of ceramic laminate veneers bonded to eroded teeth.

Material and methods:
This in-vitro study was conducted in the Department of Prosthodontics on ceramic laminate veneers bonded to eroded teeth. Sample size Sample size was estimated using G power software. With 80% power of the study the sample size was estimated as a minimum of 23. Thirty extracted teeth specimens of premolars and incisors were collected washed with saline and then immersed in 200ml of soft drink beverage for a period of 14 days. To conduct necessary testing the samples were vertically embedded in acrylic resin (polymethyl methacrylate). Impressions of the tooth specimens was made and casts were prepared. Following which was patterns of a uniform thickness of 0.5 mm and diameter of 2mm and height of 4mm were fabricated. Then the samples were tested.

Results:
The mode of failure was checked for all the samples and it was found that 63% of the samples had adhesive failures, 26% had cohesive failures and 10% had mixed failures.

Conclusions:
Shear bond strength of ceramic laminate veneers bonded to eroded teeth, using carbonated beverages with no preparation was found to be low which can be considered inadequate to withstand the loads occurring in natural dentition.