Bonding of Y-TZP to Dentin: Effects of Y-TZP Surface Conditioning, Resin Cement Type, and Aging

Abstract

The application of the low-fusing glaze porcelain followed by hydrofluoric acid etching and silanization and tribochemical silicatization generates strong bonds between resin cement and zirconia. Panavia generates stronger bonds than does Clearfil. SUMMARYPurpose: To evaluate the effects of two surface treatments, aging, and two resin cements on shear bond strength between dentin and yttrium-stabilized tetragonal zirconia polycrystal ceramic (Y-TZP).Materials and Methods: Eighty human molars were embedded in acrylic resin and sectioned 3 mm below the occlusal plane. These teeth and 80 cylindrical Y-TZP specimens (height, 4 mm; diameter, 3.4 mm) were divided into eight groups (n=10) using the following factors: Y-TZP surface treatment (Vi: low-fusing porcelain [vitrification] + hydrofluoric acid etching + silanization or Si: tribochemical silicatization); cementation strategies (PF: Panavia or CC: Clearfil); and storage (nonaging or aging). Bonding surfaces of 40 Y-TZP specimens received Vi treatment, and the rest received Si treatment. Half of the ceramic-tooth assemblies were cemented with Panavia, the rest with Clearfil. Shear tests were executed using 0.4-mm-thick wire at 0.5 mm/min. Data were analyzed by three-way analysis of variance and Tukey test (a=0.05). Fractures were analyzed.

Shear bond strength of indirect composite material to monolithic zirconia

“…The surface of the zirconia is coated with a thin layer of silica-based porcelain 33. Glazed surface can etch by HF and the silanization can be applied 34. A previous study reported higher bond strength values for indirect composite material-zirconia ceramics with the glaze layer & HF application 20…”

Influence of Pre-Sintered Zirconia Surface Conditioning on Shear Bond Strength to Resin Cement

“…For achieving long-term clinical success, various approaches have attempted the improvement of the bonding between zirconia and either veneering ceramics or cement materials [8,9,10,11,12,13]. Modification of the zirconia framework and sandblasting (airborne abrasion) of zirconia surfaces have been recommended to improve the fracture resistance of veneering ceramics [8,9].…”

“…On the other hand, for bonding of zirconia to cement materials, an in vitro systematic review summarized seven surface treatment methods with 23 different procedures [10]. Generally, a tribochemical method such as sandblasting with alumina (Al 2 O 3 ) particles has been used to adapt the zirconia surface [11,12]. Furthermore, silanization by silane coupling agents or universal adhesive primers after silicatization has improved zirconia bonding to cement materials [11].…”

“…Generally, a tribochemical method such as sandblasting with alumina (Al 2 O 3 ) particles has been used to adapt the zirconia surface [11,12]. Furthermore, silanization by silane coupling agents or universal adhesive primers after silicatization has improved zirconia bonding to cement materials [11]. The combination of sandblasting followed by a universal primer contributed to zirconia bonding with resin cements that contain phosphate ester monomer 10-methacryloyloxydecyl dihydrogen phosphate (MDP) [12].…”

Precise Placement of Single‐Retainer Resin‐Bonded Fixed Dental Prostheses with an Innovative Splint Design

“…The resin cement/zirconia ceramic interface was less susceptible to failures, owing to the zirconia ceramic surface treatments. 15 An analysis showed that bond strengths of the luting cement tested on the dental ceramics following surface conditioning methods varied according to ceramic type. Hydrofluoric acid gel was effective mostly on the ceramics that had a glassy matrix in their structures.…”