Light curing cements used for laminate veneers may be not totally cured in certain areas, so dual cured resin cements may solve this problem yet the dual cured cements containing amines cause yellowish discoloration of the veneers after time.

A new dual cured cement which is amine free is introduced so the investigators have to try it clinically using parallel groups in randomized clinical trial.

Inclusion Criteria:

All subjects are required to be:

• From 18-60 years old, and able to read and sign the informed consent document
• physically and psychologically able to tolerate conventional restorative procedures
• Have no active periodontal or pulpal diseases, have teeth with good restorations
• Patients with teeth problems indicated for laminate veneer (e.g. discoloration, fracture not involve more than 50% enamel loss, mild malposition, ….)
• Willing to return for follow-up examinations and evaluation

Exclusion Criteria:

• Patients in the growth stage with partially erupted teeth
• Patient with fractured teeth of more than 50% enamel loss
• Patients with poor oral hygiene and motivation
• Pregnant women
• Psychiatric problems or unrealistic expectations
• Lack of opposite occluding dentition in the area intended for restoration