Inclusion Criteria:  Significant loss of dental hard tissue Endodontically treated teeth in posterior region Replacement of large compromised existing restoration Large Class II restoration Age of 18-60 years Good oral hygiene Presence of interproximal contact to at least one neighboring teeth • In occlusion with antagonist teeth Cavity preparation with at least one cuspal coverage  Exclusion Criteria:  Serious medical problems or allergies to substances and/or products to be used Severe periodontal problems Poor oral hygiene Direct pulp capping Presence of parafunctional behaviors Pregnant or breast feeding