Clinical Evaluation of Hybrid Ceramic Occlusal Veneers Bonded With Two Self Adhesive Resin Cements

Inclusion Criteria: * • Age ≥ 21 years * Vital teeth * Sufficient tooth structure for veneer retention * Willing and able to provide written informed consent * Ability to attend all follow-up appointments * Adequate oral hygiene as determined by the investigator Exclusion Criteria: * • Patients with active periodontal disease (probing depth \> 4mm, bleeding on probing) * Patients with severe parafunctional habits (e.g., bruxism confirmed by clinical examination) * Poor oral hygiene (plaque index \> 30%) * Pregnancy or nursing * Systemic diseases affecting treatment outcomes (e.g., uncontrolled diabetes, immunosuppression) * Known allergies to study materials (ceramic, or resin cement components) * Inability to comply with study requirements * Current participation in other dental clinical trials * Active orthodontic treatment