This study will be conducted to assess diagnostic predictive values of a light induced fluorescence intraoral camera versus those of the visual-tactile assessment method according to FDI criteria in clinical evaluation the margins of resin composite restorations

Each patient should have at least one resin composite restoration. The restoration will be evaluated by two diagnostic methods.

Each examiner will record the dental findings using both the visual- tactile assessment method and the fluorescent-aided identification method. The visual-tactile assessment method includes the use of mirror, FDI probe under good illumination condition, while the fluorescent-aided identification method will be performed by light induced fluorescence intraoral camera then the reliability of each diagnostic tool will be assessed.

Inclusion Criteria:

• Patients should be over 18 years of age.
• Patients should have an acceptable oral hygiene level.
• Patients must have at least one posterior resin composite restoration.

Exclusion Criteria:

• Patients with a compromised medical history.
• Severe or active periodontal disease.
• Heavy bruxism or a traumatic occlusion.

The assessors will not be blind about the type of intervention/control assessment methods. However it will not be allowed amongst the examiners to exchange any information throughout the entire study period