Influence of various airborne-particle abrasion conditions on bonding between zirconia ceramics and an indirect composite resin material

Laser-Milled Microslits Improve the Bonding Strength of Acrylic Resin to Zirconia Ceramics

“…The proposed reason for the observed trend is that although the surface areas of the three microslits vary slightly, the influence of microslit size on the bonding strength is imperceptible due to similarity in microslit topography. Previous research on the effect of different conditions of air-abrasion to SBS also indicated similar results; although increasing the particle size or the jet pressure of the air-abrasion caused a significant increase in surface roughness, there was no apparent effect on SBS and bonding durability [23]. Therefore, it is possible to conclude that the bond strength would potentially remain unchanged, despite increasing the size of the microslit.…”

“…Yamaguchi et al [34], reported that rougher surfaces have more extensive contact areas available for bonding. The current study did not conduct experiments pertaining to the surface roughness; however, other published papers have reported that the surface roughness of the air-abrasion with Al 2 O 3 (under identical conditions) was approximately 0.23 µm for Y-TZP and 0.24 µm for Ce-TZP/A [23]. Therefore, it is understood that due to the uneven and rough surface, CON creates shallower surface defects than the microslits (50 MS, 75 MS or 100 MS).…”

“…The shear bond strengths of the acrylic resin and two types of zirconia ceramic (Y-TZP and Ce-TZP/A) were evaluated after traditional surface pretreatment, air-abrasion with 50 µm and 0.3 MPa Al 2 O 3 particles (CON) [23], and a novel pretreatment, using a laser to create microslits (MS). Despite the fact that studies on the bonding strength between acrylic resin and metal alloys [32,33] postulate that bonding strength is sufficient for clinical dentistry, the durability after thermal cycling as a means of artificial aging, requires discussing.…”

“…Thus, a combination of chemical and mechanical preprocessing was confirmed to improve the bonding between zirconia ceramics and other substrate materials [21,22]. However, previous work indicates that on account of the high-hardness of zirconia ceramics, the superficial irregularities formed by conventional pretreatment methods are limited [23].…”

Bonding and Thermal Cycling Performances of Two (Poly)Aryl–Ether–Ketone (PAEKs) Materials to an Acrylic Denture Base Resin

“…Nevertheless, for the application of aesthetic dental materials to RPD frameworks, critical factors include sufficient mechanical properties and the bonding properties between the materials and the denture acrylic. Studies on zirconia-based materials (Y-TZP and Ce-TZP/A) bonded to denture acrylic have shown that zirconia treated with proper pretreatment methods will provide sufficient bonding strength [25,26]. However, to our knowledge, there are few studies discussing the bonding properties of denture acrylic and PAEKs.…”