Testing the clinical performance of two different dental fillings for non-caries teeth.

INTERVENTION: Intervention1: Activa bioactive versus GC Equia forte: Activa bioactive and gc equia forte restorative materials will be used to restore non carious cervical lesions in allocated teeth according to the manufacturers instruction Intervention2: Activa Bioactive: Activa bioactive will be used as a restorative material to restore non carious cervical lesions in allocated teeth according to the manufacturers instructions. Control Intervention1: GC Equia forte: GC Equia forte will be used as a restorative material to restore non carious cervical lesions in allocated teeth according to the manufacturers instructions. CONDITION: Health Condition 1: K031‐ Abrasion of teeth PRIMARY OUTCOME: Restoration retentionTimepoint: Base line, 24 hours, 1 month,3 months,6 months, 12 months SECONDARY OUTCOME: Post operative sensitivity,secondary caries,marginal stainingTimepoint: Base line, 24 hours, 1 month,3 months,6 months, 12 months INCLUSION CRITERIA: Each participant with minimum of four or more comparable non carious cervical lesions with minimum of 2 or more lesions on different quadrants/sites requiring restorations which are non retentive deeper than 1mm, involving both enamel and dentin in vital teeth.