Effect of 1.5-T and 3.0-T magnetic resonance imaging on the ceramic adhesion and physical properties of prosthetic substructures

Mechanical Properties and Bond Strength of Additively Manufactured and Milled Dental Zirconia: A Pilot Study

“…Feldspathic ceramic (Noritake CZR Dentin; Kuraray, Tokyo, Japan) was applied to the disc specimens (n = 9) from each group (h = 4 mm, r = 6 mm) by using custom‐made molds 26 that were obtained by a liquid silicone (Platsil73‐29; Polytek Development Corp, Easton, USA), according to the manufacturer's instructions. Then the specimens were embedded in autopolymerizing acrylic resin (Panacryl; Inci Dental, Turkey) by using plastic molds (15$$\ \times \ $$15$$\ \times \ $$15 mm).…”

“…where the F is the load of the fracture (N), I is the distance of two supports (mm), b is the width of the specimen (mm), h is the height of the specimen (mm). 23 Feldspathic ceramic (Noritake CZR Dentin; Kuraray, Tokyo, Japan) was applied to the disc specimens (n = 9) from each group (h = 4 mm, r = 6 mm) by using custom-made molds 26 that were obtained by a liquid silicone (Platsil73-29; Polytek Two of the disc-shaped specimens from each group were prepared to analyze the surface parameters such as roughness and possible layer integration differences. One of each disc specimen constituted a control group and no surface treatment was applied on them.…”

“…Since zirconia is an opaque material, zirconia frameworks must be coated with feldspathic ceramics to improve aesthetic properties 23–25 . Therefore, the bond strength between veneering ceramics and the framework materials is an important factor in terms of longevity and clinical success rates of dental restorations 24,26 . The accepted bond strength value for porcelain fused to metal restorations is 25 MPa according to International Standard (ISO9693) 24 and ranges between 16 MPa and 42 MPa for all‐ceramic restorations 27 .…”

“…[23][24][25] Therefore, the bond strength between veneering ceramics and the framework materials is an important factor in terms of longevity and clinical success rates of dental restorations. 24,26 The accepted bond strength value for porcelain fused to metal restorations is 25 MPa according to International Standard (ISO9693) 24 and ranges between 16 MPa and 42 MPa for all-ceramic restorations. 27 Owing to the limited literature, [14][15][16][17][28][29][30] evaluating the ceramic bond strength and mechanical properties of the zirconia that is produced with AM technique, especially with NPJ, is not quite possible.…”