الفهرس 
REVIEW OF LITERATUREOnly 14 pages are availabe for public view
 |  | from | 162 |  |  |
| | | from | 162 | | |
Abstract
To evaluate the fracture resistance and color changes of ceramic laminate veneers
prepared with modified gull wing and conventional preparation
Methodology: Twenty -four ceramic laminate veneers were fabricated for maxillary anterior
teeth. The patients were divided into two groups according to the preparation technique
group 1(control group) conventional preparation technique and group 2 (intervention
group) gull wing preparation technique . Standardized the same incisal preparation with
butt joint design and chamfer finish line located supra gingival were performed for all the
teeth. The veneers surfaces were treated and silanated according to the manufacture
instruction of each ceramic and enamel surfaces were etched where total etch adhesive
protocol was obeyed using BISCO. Fracture resistance and color change for both groups
were evaluated according to United States public health services (USPHS) criteria.
vii
Results: Fracture resistances and color change were evaluated according to the criteria of
USPHS and we found there is no significant difference as both groups scaled zero score.
Conclusions: Both preparation techniques of laminate veneers revealed high successful
clinical performance in terms of fracture resistance and color stability.