Comparison in Marginal Adaptation Between Conventional and Gull Wing Preparation in Laminates Veneers

Marginal Adaptation of E.Max Laminate Veneers Prepared With Modified Gull Wing Preparation and Conventional Preparation

The aim of this study is to evaluate tooth sensitivity and marginal adaptation of porcelain laminates veneers prepared with modified gull wing preparation and conventional preparation.

Visit 1: Preoperative records, face-to-face adherence reminder session, clinical, radio-graphic examination and primary impression for diagnostic cast construction.

Visit 2: Teeth preparation, secondary impression,temporary restoration and teeth sensitivity evaluation using United States Public Health Service criteria.

Visit 3: Placement and permanent cementation of the final restoration

Visit 4: marginal adaptation measurement by electron microscope using impression replica.

Inclusion Criteria:

• From 18-40 years old, be able to read and sign the informed consent document.
• Be 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.
• Be 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.
• Patient with post and core endodontically treated teeth.
• Psychiatric problems or unrealistic expectations.
• Lack of opposite occluding dentition in the area intended for restoration