Effect of air-abrasion on the retention of zirconia ceramic crowns luted with different cements before and after artificial aging

Shahin, Ramez; Kern, Matthias

doi:10.1016/j.dental.2010.06.006

Cited by 86 publications

(86 citation statements)

References 63 publications

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“…First of all, the results of present study confirmed that making roughened surface results in higher values of retentive strength as reported elsewhere (2,9,14,15,19,20).…”

Section: Discussionsupporting

confidence: 92%

Effect of Using Nano and Micro Airborne Abrasive Particles on Bond Strength of Implant Abutment to Prosthesis

2015

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Connecting prostheses to the implant abutments has become a concern and achieving a satisfactory retention has been focused in cement-retention prostheses recently. Sandblasting is a method to make a roughened surface for providing more retention. The aim of this study was to compare effects of nano and micro airborne abrasive particles (ABAP) in roughening surface of implant abutments and further retention of cemented copings. Thirty Xive abutments and analogues (4.5 D GH1) were mounted vertically in self-cured acrylic blocks. Full metal Ni-Cr copings with a loop on the top were fabricated with appropriate marginal adaptation for each abutment. All samples were divided into 3 groups: first group (MPS) was sandblasted with 50 µm Al 2 O 3 micro ABAP, second group (NSP) was sandblasted with 80 nm Al 2 O 3 nano ABAP, and the third group (C) was assumed as control. The samples were cemented with provisional cement (Temp Bond) and tensile bond strength of cemented copings was evaluated by a universal testing machine after thermic cycling. The t test for independent samples was used for statistical analysis by SPSS software (version 15) at the significant level of 0.05. Final result showed significant difference among all groups (p<0.001) and MPS manifested the highest mean retention (207.88±45.61 N) with significant difference among other groups (p<0.001). The control group showed the lowest bond strength as predicted (48.95±10.44 N). Using nano or micro ABAP is an efficient way for increasing bond strengths significantly, but it seems that micro ABAP was more effective.

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“…First of all, the results of present study confirmed that making roughened surface results in higher values of retentive strength as reported elsewhere (2,9,14,15,19,20).…”

Section: Discussionsupporting

confidence: 92%

Effect of Using Nano and Micro Airborne Abrasive Particles on Bond Strength of Implant Abutment to Prosthesis

2015

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“…Nevertheless as its use is not technique-sensitive, and it shows high physical strength, zinc-phosphate cement has been the most popular among all conventional cements [11,17]. As a chemical bond with the zirconia surface can only be established with MDP containing resin cements [18] and the high fracture toughness of zirconia decreases the need of strengthening the ceramic by adhesive bonding, the use of zinc phosphate cement is recommended by various authors [9,10]. On the other hand, lithium-disilicate crowns need to be bonded adhesively with resin cement to have higher fracture strength [16].…”

Section: Resultsmentioning

confidence: 99%

“…However, various authors suggested the use of water-based cements for zirconia ceramic restorations because they stated that higher fracture toughness of ZrO 2 decreased the risk of fracturing the all-ceramic crown and removal of excess phosphate cement was perceived as being easier than resin cements [9,10]. Although it is well known that the adhesive bonding to tooth structure increases the fracture strength of the porcelain [4,11,12], recently the use of a new brand of zinc-phosphate cement with different shade options is recommended by the manufacturer for cementation of zirconia and lithium disilicate ceramic restorations [13].…”

mentioning

confidence: 99%

Shear bond strength of various luting cements to fixed prosthodontic restorative materials

et al. 2015

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“…Groups Ra (µm) Rq ( [19,21,22,34,35,43]. This study used an interference microscopic (IM), which is an optical technique used to measure surface roughness by the optical interference technique, where the light intensity of the fringes is related to the surface height.…”

Section: [Figura 2: Imagens Da Rugosidade De Superfície Da Cerâmica Ymentioning

confidence: 99%

Effect of airborne particle abrasion protocols on surface topography of Y-TZP ceramic

et al. 2012

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This study aimed to evaluate Y-TZP surface after different airborne particle abrasion protocols. Seventy-six Y-TZP ceramic blocks (5×4×4) mm 3 were sintered and polished. Specimens were randomly divided into 19 groups (n=4) according to control group and 3 factors: a) protocol duration (2 and 4 s); b) particle size (30 µm, alumina coated silica particle; 45 µm, alumina particle; and 145 µm, alumina particle) and; c) pressure (1.5, 2.5 and 4.5 bar). Airborne particle abrasion was performed following a strict protocol. For qualitative and quantitative results, topography surfaces were analyzed in a digital optical profilometer (Interference Microscopic), using different roughness parameters (Ra, Rq, Rz, X-crossing, Mr1, Mr2 and Sdr) and 3D images. Surface roughness also was analyzed following the primer and silane applications on Y-TZP surfaces. One-way ANOVA revealed that treatments (application period, particle size and pressure of particle blasting) provided significant difference for all roughness parameters. The Tukey test determined that the significant differences between groups were different among roughness parameters. In qualitative analysis, the bonding agent application reduced roughness, filing the valleys in the surface. The protocols performed in this study verified that application period, particle size and pressure influenced the topographic pattern and amplitude of roughness.

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Effect of air-abrasion on the retention of zirconia ceramic crowns luted with different cements before and after artificial aging

Cited by 86 publications

References 63 publications

Effect of Using Nano and Micro Airborne Abrasive Particles on Bond Strength of Implant Abutment to Prosthesis

Effect of Using Nano and Micro Airborne Abrasive Particles on Bond Strength of Implant Abutment to Prosthesis

Shear bond strength of various luting cements to fixed prosthodontic restorative materials

Effect of airborne particle abrasion protocols on surface topography of Y-TZP ceramic

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