OBJECTIVES The objective of this in vitro study was to evaluate the marginal sealing ability of an ormocer in comparison with a hybrid composite when using thermocycling and load cycling procedures together in the study design. METHODS Modified proximal Class II cavities were prepared on the mesial and distal surfaces of twenty-two human premolars. Each tooth was restored with Admira and cont...

The sizes for the perceptible or acceptable color difference measured with instruments vary by factors such as instrument, material, and color-difference formula. To compensate for disagreement of the CIELAB color difference ( E*ab) with the human observer, the CIEDE2000 formula was developed. However, since this formula has no uniform color space (UCS), DIN99 UCS may be an alternative UCS at p...

Timo Heikkinen. Bonding of Composite Resin to Alumina and Zirconia Ceramics with Special Emphasis on Surface Conditioning and Use of Coupling Agents. Department of Biomaterials Science, Institute of Dentistry, University of Turku. Annales Universitatis Turkuensis, Turku, Finland 2011. Dental oxide ceramics have been inspired by their biocompability and mechanical properties which have made dura...

Abstract The field of dentistry is consistently innovating with the introduction novel hybrid and polymer materials for computer-aided design manufacturing (CAD/CAM). It noteworthy that temperature within oral cavity has a significant impact on strength new biomaterials utilized CAD/CAM fabrication fixed partial dentures (FPDs). Studies have demonstrated alterations in intraoral may significant...

O This in vitro treatments, 3 luting agents and thermocycling on microtensile bond strength (μTBS) to zirconia ceramic. Material and Methods: A total of 18 blocks (5x5x4 mm) were fabricated from zirconia ceramic (ICE Zirkonia) and duplicated into composite blocks (Alphadent). Ceramic blocks were divided into 3 groups (n=6) according to the following surface treatments: airborne-particle abrasio...