LAUSR

Aims: The aim of this study is to evaluate the gap distance of two cementation techniques for laminate veneers fabricated on maxillary anterior teeth using heat-pressed ceramic, finger pressure, and ultrasonic cementation techniques. Material and Methods: A total number of 42 extracted natural central incisors were prepared to receive ceramic laminate veneers, laminate veneers were constructed in the laboratory using heat-pressed ceramic according to manufacturer's instructions (IPS e.max). Ceramic veneers were divided into two groups and cemented using two different cementation techniques (Ultrasonic, finger pressure). Marginal gap distance was measured in microns at the margins using a stereomicroscope and special computer software (quantitative assessment). Results: The ultrasonic cementation technique recorded 63.3 ± 27.8 μm, which was significantly lower than the finger pressure technique (91.5 ± 21.4 μm). Conclusions: The ultrasonic cementation technique improved the gap distance at the tooth/ceramic interface when compared to the finger pressure technique using the light cure cement.