Effect of elapsed time after air abrasion on bond strength of luting agent to CAD/CAM resin blocks

The purpose of this study was to evaluate the effect of one week of Computer-aided design/Computer-aided manufacturing (CAD/CAM) crown storage on the μTBS between resin cement and CAD/CAM resin composite blocks. The micro-tensile bond strength (μTBS) test groups were divided into 4 conditions. There are two types of CAD/CAM resin composite blocks, namely A block and P block (KATANA Avencia Block and KATANA Avencia P Block, Kuraray Noritake Dental, Tokyo, Japan) and two types of resin cements. Additionally, there are two curing methods (light cure and chemical cure) prior to the μTBS test—Immediate: cementation was performed immediately; Delay: cementation was conducted after one week of storage in air under laboratory conditions. The effect of Immediate and Delayed cementations were evaluated by a μTBS test, surface roughness measurements, light intensity measurements, water sorption measurements and Scanning electron microscope/Energy dispersive X-ray spectrometry (SEM/EDS) analysis. From the results of the μTBS test, we found that Delayed cementation showed significantly lower bond strength than that of Immediate cementation for both resin cements and both curing methods using A block. There was no significant difference between the two types of resin cements or two curing methods. Furthermore, water sorption of A block was significantly higher than that of P block. Within the limitations of this study, alumina air abrasion of CAD/CAM resin composite restorations should be performed immediately before bonding at the chairside to minimize the effect of humidity on bonding.

Download Full-text

Effects of ceramic surface treatments on the bond strength of an adhesive luting agent to CAD–CAM ceramic

Journal of Dentistry ◽

10.1016/j.jdent.2006.09.006 ◽

2007 ◽

Vol 35 (4) ◽

pp. 282-288 ◽

Cited By ~ 28

Author(s):

M. Peumans ◽

K. Hikita ◽

J. De Munck ◽

K. Van Landuyt ◽

A. Poitevin ◽

...

Keyword(s):

Bond Strength ◽

Surface Treatments ◽

Ceramic Surface ◽

Luting Agent ◽

Adhesive Luting ◽

Cad Cam

Download Full-text

Effect of Immediate Dentin Sealing on the Bond Strength of Monolithic Zirconia to Human Dentin

Operative Dentistry ◽

10.2341/18-198-l ◽

2019 ◽

Vol 44 (4) ◽

pp. E167-E179

Author(s):

AE Rigos ◽

C Dandoulaki ◽

E Kontonasaki ◽

M Kokoti ◽

L Papadopoulou ◽

...

Keyword(s):

Bond Strength ◽

Silica Coating ◽

Fracture Type ◽

Surface Pretreatment ◽

Luting Agent ◽

Adhesive Luting ◽

Human Dentin ◽

Cad Cam ◽

Monolithic Zirconia ◽

Dentin Conditioning

SUMMARY Objective: This study evaluated the shear bond strength (SBS) of pretreated monolithic zirconia surfaces bonded to human dentin following immediate dentin sealing (IDS) using two different self-adhesive resin luting agents. Methods and Materials: Sixty intact human third molars were collected, stored, sectioned appropriately, and molded according to ISO 29022:2013, resulting in 120 dentin specimens. Ceramic cylindrical specimens were fabricated using CAD/CAM technology and sintered as recommended (final bonding area A=2.56 mm2). Specimens were randomly assigned to eight groups (15≥n≥14) depending on dentin conditioning method (IDS or delayed dentin sealing [DDS]), zirconia surface pretreatment (airborne particle abrasion [APA] with 50 μm Al2O3 particles at 3 bar for 10 seconds or tribochemical silica coating [TBC] with 30 μm CoJet particles at 2.8 bar for 10 seconds), and adhesive luting agent type (Panavia F2.0 [PAN] or PermaCem Dual Smartmix [PER]). Bonded specimens were water-stored (37°C, 24 hours) and subjected to SBS testing (50-kgF load cell, 1 mm/min). Fracture type was evaluated with stereomicroscopy. Data (MPa) were statistically analyzed using three-way analysis of variance (α=0.05). Results: All factors significantly affected SBS values (p<0.001). Dentin conditioning method presented the greatest effect. Mean SBS values ranged from 12.603 MPa (PER-APA-DDS) to 40.704 MPa (PER-TBC-IDS). Based on the fracture type, adhesive failures at the luting agent–zirconia interface were the least common. Conclusion: Bonding strategies for monolithic zirconia restorations could potentially benefit from IDS, regardless of the adhesive luting agent system used.

Download Full-text

Phosphate group adsorption capacity of inorganic elements affects bond strength between CAD/CAM composite block and luting agent

Dental Materials Journal ◽

10.4012/dmj.2020-029 ◽

2020 ◽

Author(s):

Eri TOKUNAGA ◽

Noriyuki NAGAOKA ◽

Yukinori MARUO ◽

Kumiko YOSHIHARA ◽

Goro NISHIGAWA ◽

...

Keyword(s):

Bond Strength ◽

Adsorption Capacity ◽

Phosphate Group ◽

Inorganic Elements ◽

Luting Agent ◽

Cad Cam

Download Full-text

Effect of various surface treatments on the bond strength of resin luting agent and the surface roughness and surface energy of CAD/CAM materials

Dental Materials Journal ◽

10.4012/dmj.2019-359 ◽

2020 ◽

Author(s):

Pakorn CHUENJIT ◽

Masaya SUZUKI ◽

Koichi SHINKAI

Keyword(s):

Surface Roughness ◽

Surface Energy ◽

Bond Strength ◽

Surface Treatments ◽

Luting Agent ◽

Cad Cam

Download Full-text

Effect of Resin Luting Systems and Alumina Particle Air Abrasion on Bond Strength to Zirconia

Operative Dentistry ◽

10.2341/15-352-l ◽

2018 ◽

Vol 43 (3) ◽

pp. 282-290 ◽

Cited By ~ 11

Author(s):

R Grasel ◽

MJ Santos ◽

HM Chagas Rêgo ◽

MP Rippe ◽

LF Valandro

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Alumina Particle ◽

Optical Microscope ◽

Strength Testing ◽

Air Abrasion ◽

Tukey Test ◽

Luting Agents ◽

Luting Agent ◽

Alumina Particles

SUMMARY This study aimed to evaluate the effect of different primer/resin luting agent combinations and alumina air abrasion on the adhesion to zirconia. Eighty blocks (4×4×3 mm) of Lava Frame Zirconia (3M ESPE) were produced and randomly assigned into eight groups (n=10) according to two zirconia surface treatments (untreated or air abrasion with 50-μm alumina particles) and four luting systems (SU: Scotchbond Universal/RelyX Unicem 2; ZP: Z-Prime Plus/Duo-link Universal; MB: Monobond Plus/Variolink II; and AP: Alloy Primer/ED Primer II/Panavia F 2.0). After the conditioning and primer applications, resin luting agents were manipulated and applied on the zirconia, using a matrix, to form a cylinder (2 mm in diameter×2 mm high), followed by photoactivation for 40 seconds. After that, the specimens were stored in distilled water (37 °C) for 120 days and then submitted to shear bond strength testing, followed by failure mode evaluation under an optical microscope (30×). A two-way analysis of variance and Tukey test (α=0.05) were used for data analysis. Alumina air abrasion (Al) promoted higher bond values for the three luting systems, except for SU, which showed the best results without air abrasion, while with air abrasion, Al-SU, Al-ZP, and Al-MB presented higher values compared to Al-AP. We concluded that the alumina air abrasion of zirconia surfaces seemed to be dispensable for the SU group, while air abrasion (topographical alterations) enhanced the adhesion of the ZP, MB, and AP groups.

Download Full-text

Effects of air abrasion with alumina or glass beads on surface characteristics of CAD/CAM composite materials and the bond strength of resin cements

Journal of Applied Oral Science ◽

10.1590/1678-775720150261 ◽

2015 ◽

Vol 23 (6) ◽

pp. 629-636 ◽

Cited By ~ 22

Author(s):

ARAO Nobuaki ◽

YOSHIDA Keiichi ◽

SAWASE Takashi

Keyword(s):

Composite Materials ◽

Bond Strength ◽

Surface Characteristics ◽

Glass Beads ◽

Air Abrasion ◽

Resin Cements ◽

Cad Cam

Download Full-text

Influence of Alumina Air-Abrasion on Flexural and Shear Bond Strengths of CAD/CAM Composite

Crystals ◽

10.3390/cryst10100927 ◽

2020 ◽

Vol 10 (10) ◽

pp. 927

Author(s):

Pirat Karntiang ◽

Hiroshi Ikeda ◽

Yuki Nagamatsu ◽

Hiroshi Shimizu

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Resin Cement ◽

Bending Test ◽

Air Abrasion ◽

Iso Standard ◽

Three Point Bending ◽

Significant Difference ◽

Cad Cam ◽

Bond Strengths

The purpose of this study was to clarify the influence of alumina air-abrasion on flexural and bond strengths of CAD/CAM composites. The flexural strength (FS) of two brands of commercial CAD/CAM composites was investigated by the three-point bending test using two specimen designs: the single-bar according to the ISO standard and the bonded-double-bar fabricated by bonding two bars with a resin cement. The bond strength between the composites and the resin cement was measured by a conventional shear bond strength (SBS) test. The FS of single-bar specimens was significantly decreased by the air-abrasion. For the FS of the bonded-double-bar specimen, on the other hand, there was no significant difference between the specimens with/without air-abrasion. The SBS for the composites was significantly increased by air-abrasion. The results suggest that alumina air-abrasion improves the SBS of the composites while weakening its FS. Contrarily, the FS of the air-abraded composite did not decrease when the composites were bonded with the resin cement.

Download Full-text