The study will involve 41 people who regularly seek treatment at clinics. Participants must be in generally good health and be older than eighteen. must have at least 20 teeth in an occlusion and maintain appropriate dental hygiene. They have to be treated for a minimum of four non-cancerous cervical lesions in their mouths.Four non-carious cervical lesions from patients will be separated into four groups, and adhesive material will be applied to the lesions in each group using different procedures. Evaluation will be performed based on World Dental Federation (FDI) criteria after initial, ½, 1, 2, 3, 4, and 5 years.

The study will involve 41 people who regularly seek treatment at clinics. Participants must be in generally good health and be older than eighteen. must have at least 20 teeth in an occlusion and maintain appropriate dental hygiene. They have to be treated for a minimum of four non-cancerous cervical lesions in their mouths.Four non-carious cervical lesions from patients will be separated into four groups, and adhesive material will be applied to the lesions in each group using different procedures. Evaluation will be performed based on World Dental Federation (FDI) criteria after initial, ½, 1, 2, 3, 4, and 5 years. In each evaluation period, esthetic (surface gloss, surface coloration, marginal discoloration, color match and translucency, esthetic anatomic form), functional (fracture and retention, marginal adaptation), and biologic criteria (postoperative sensitivity and vitality, caries recurrence) will be evaluated.

Inclusion Criteria:

• Over the age of 18 years
• Good oral hygiene normal occlusal relationship with natural dentition
• At least 20 teeth are in occlusion The tooth with the lesion must be vital. non-mobile and non-carious
• Accepts Healthy Volunteers

Exclusion Criteria:

under the age of 18

• Poor oral hygiene poor general health condition
• Bruxism or uncontrolled parafunction
• Patients with periodontal or gingival diseases