Bond strengths between gingiva-colored layering resin composite and zirconia frameworks coated with feldspathic porcelain

Abstract

This study evaluated shear bond strengths of two gingiva-colored layering resin composites to zirconia frameworks coated with feldspathic porcelain. Airborne-particle abraded porcelain-coated zirconia disks were treated with one of the following primers: Clearfil Photo Bond, Clearfil Photo Bond with Clearfil Porcelain Bond Activator (CPB+Activator), Estenia Opaque Primer, Porcelain Liner M Liquid B (PLB), or no primer. A light-polymerizing (CER) or a photo/heat-polymerizing gingiva-colored indirect resin composite (EST) was bonded to the porcelain-coated zirconia disks in each group (n=11). Shear bond strength was measured. For both CER and EST specimens, bond strengths in CPB+Act group were significantly higher than those in the other groups. In all priming groups, bond strength was significantly higher for EST specimens than for CER specimens. Combined application of a phosphate monomer and silane enhanced initial bond strength of light-polymerized and photo/heat-polymerized gingiva-colored layering resin composites to porcelain-coated zirconia ceramics.

Determination of the degree of conversion, the diffuse reflectance, and the color stability after different aging processes of gingiva‐colored composite resins

“…In the presence of alveolar resorption, resection, and asymmetry, in cases where surgical or regenerative procedures are performed, soft and hard tissue augmentation is not always possible, and gingiva‐colored materials are used to layer the framework materials 3 . In addition, patients sometimes reject surgical interventions due to pain and associated discomfort, prolonged healing time, and cost of surgery 4 . Use of autopolymerizing acrylic resins, silicone materials, gingiva‐colored porcelains, and composite resins is an alternative to reconstructing defective tissues 1–4 .…”

“…As the veneering procedure needs many steps, it is time‐consuming and requires technical precision 5 . Recent studies have reported that the gingiva‐colored composite is a promising alternative to porcelain 2–4 . It offers a faster, easier, and comparatively less expensive veneering option, which does not shrink during firing.…”

“…With a wide range of shade alternatives, it effectively meets esthetic requirements. Additionally, it has demonstrated promising clinical results due to its repairability 2,4 …”

“…3 In addition, patients sometimes reject surgical interventions due to pain and associated discomfort, prolonged healing time, and cost of surgery. 4 Use of autopolymerizing acrylic resins, silicone materials, gingiva-colored porcelains, and composite resins is an alternative to reconstructing defective tissues. [1][2][3][4] Gingiva-colored porcelain is highly biocompatible and deliv-…”

“…4 Use of autopolymerizing acrylic resins, silicone materials, gingiva-colored porcelains, and composite resins is an alternative to reconstructing defective tissues. [1][2][3][4] Gingiva-colored porcelain is highly biocompatible and deliv-…”