This randomized clinical trial aims to evaluate the clinical performance of hybrid ceramic occlusal veneers cemented with two different bonding protocols: a self-adhesive bonding protocol with adhesive enhancement (BeautiLink SA cement with BeautiBond Xtreme adhesive) versus another self-adhesive bonding protocol (RelyX U200 self-adhesive resin cement with 3M UNIVERSAL bond).
• Age ≥ 21 years
Vital teeth
Sufficient tooth structure for veneer retention
Willing and able to provide written informed consent
• 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
Parallel
hybrid ceramic occlusal veneers
Other interventionocclusal veneers cemented with self adhesive resin cements
Marginal discoloration
Measuring device: Modified USPHS criteria Alpha: No discoloration on margin Bravo: Discoloration found at margin Charlie: Discoloration with penetration in a pulpal direction
Retention
Measuring device: Modified USPHS criteria Alpha: retained Charlie: debonded
Marginal adaptation
Measuring device: Modified USPHS criteria Alpha: explorer does not catch or has one way catch when drawn across restoration/tooth interface Bravo: explorer falls into crevice when drawn across the restoration tooth interface Charlie: Dentin or base exposed along margin
Postoperative hypersensitivity
Measuring device: Modified USPHS criteria Alpha: Absent Charlie: Present
Recurrent caries
Measuring device: Modified USPHS criteria Alpha: no evidence of caries at the margin of restoration Charlie: evidence of caries continuous with the margin of restoration
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