Clinical Evaluation of a New Dual-cure Universal Adhesive

Inclusion Criteria: * Age: 18-65 years * Informed consent signed and understood by the subject * Indication for indirect restorations (inlay, onlay) in molar or premolar * The occlusal area of the restoration must cover at least 1/3 of the occlusal area of the tooth. * visual analogue scale (VAS)\<4 (0=no pain, 10=maximum conceivable pain) * Max. 2 restorations per participant in different quadrants. * Vital tooth * Healthy periodontium, no active periodontitis * Contact with adjacent teeth (at least at one side) and opposing teeth present with at least one contact point. * Sufficient language skills Exclusion Criteria: * Insufficient isolation * Participants with a proven allergy to one of the ingredients of the materials used * Participants with proven allergy to local anaesthetics * High caries activity/ poor oral hygiene * Participants with severe systemic diseases * Pregnancy * Tooth with irreversible pulpitis * Indication for direct pulp capping * Bleaching of teeth within the last 14 days * Usage of peroxide-based disinfectants within the last 14 days