Publications by authors named "Ryoki Takano"
The present study investigated the fracture strength of hybrid abutment crowns (HACs) in the premolar region that were fabricated with different restorative computer-aided design/computer-aided manufacturing (CAD/CAM) materials. The abutment-implant structures were randomly assigned into four groups (n=11 per group): bi-layered zirconia restorations (BL), translucent zirconia (4Y-PSZ) restorations (TZ), lithium disilicate ceramic restorations (LD), and dispersed nanoparticle-filled composite resin restorations (CM). All restorations were adhesively bonded to the titanium abutments.
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- * A total of 176 porcelain disks were used, divided into groups based on the surface treatment and whether they were primed with silane or not, with half of the samples undergoing thermocycling to test durability.
- * Results showed that silanized specimens treated with both abrasion and acid etching had the highest bond strengths, indicating that this combination provides stronger and more lasting adhesion than other methods tested.
This study investigated the influence of roughening procedures and application of primers on shear bond strengths of CAD/CAM composite resin material or ceramic material to zirconia frameworks. A CAD/CAM composite resin block (Katana Avencia Block; AVE) and lithium disilicate glass-ceramic block (IPS e.max CAD; IEC) were used as veneer materials.
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