The aim of the study is to evaluate the color stability of full and sectional glass ceramic laminate veneer as esthetic failure is reported to be common failure in laminate following clinical service.

The null hypothesis is that there will be no apparent change in color stability between full and sectional veneer over one year of clinical service

The success of any esthetic restorative material depends primarily on the color match and then on the color stability of the material. color changes by time reduce the longevity and quality of restorations.

This in vivo study planned to evaluate the color stability of full and sectional glass ceramic laminate veneer using a digital shade device The primary objective of the study to evaluate the color stability of sectional glass ceramic veneer compared to full laminate veneer

Inclusion Criteria:

Patients seeking for esthetics with the following criteria:

1. Male or female patients age range above 18 years old
2. Minor esthetic defects in anterior region
3. Multiple spacing, diastemas
4. Incisal fracture
5. Initial proximal caries
6. Patients able physically and psychologically to tolerate restorative procedures
7. Patients willing to return for follow-up examinations and evaluation
8. Class I occlusion

Exclusion Criteria:

• Patients free of

  1. Tempromandibular disorders
  2. Para-functional habits
  3. Cracked teeth
  4. Moderate or deep caries
  5. Heavily discolored teeth
  6. Heavy smokers
  7. Enamel defects compromising bonding
  8. Active periodontal disease
  9. Pulpal disease
  10. Mobility
  11. Occlusal disturbances
  12. Class II and III occlusion

Data analyst and statistician will be blinded and The patient will be blinded