Purpose: To evaluate the bond strength to machinable glass ceramic using conventional silane and multipurpose primer after different surface treatments to composite build up. Materials and methods: A total of 64 lithium disilicateIPS e.max CADceramicspecimens with dimension(12Ⅹ10Ⅹ3) were fabricated using milling technology, thespecimens were equally divided into 4 main groups (n=16) according to the method of surface treatment as follows. In Group I: polished, Group II: Acidulated phosphate fluoride (APF) application, Group III: Hydrofluoric acid (HF) application, Group IV:Monobond Etch & Prime (MEP) application. Each main group was further equally subdivided into 2 subgroups (n=8) according to methods of chemical bonding. Subgroup (A):Conventional silane.Subgroup (B):Multipurpose primer.Composite resin cylinder (Master fill) were fabricated and cemented to the treated specimens by multistep adhesive resin cement. All bonded specimens were stored in water bath for 5 months and subjected to 10000 thermal cycles. Shear bond strength (SBS) test was performed afterwards. Scanning Electron Microscope (SEM) was used for specimens examination .Results: The statistical analysis were done using two-way ANOVA and serial one-way ANOVAs followed by Post Hoc Tukey-HSD test at α =(0.05). Application of multipurpose primersignificantly increased SBS (P=0.001). The highest SBS mean value (14.8 ± 2.2 MPa) was obtained for APF followed by Monobond Etch & Prime with conventional silane (14.7 ± 2.8 MPa)On the other hand,APF with conventional silane showed the lowest SBS mean value(4.6 ± 2.0MPa). There was statistically significant difference between polished and APF considering conventional silane and multipurpose primer, and no statistically significant difference was reported between HF and Etch & Prim for conventional silane and multipurpose primer. Conclusions: Multipurpose primershowed superior bond strength in comparison to conventional silanewhen used for conditioning of lithium disilicateIPS e.max CADceramics.
(2021). Bond strength of machinable ceramic using conventional silane and multipurpose primer.. Mansoura Journal of Dentistry, 8(2), 16-20. doi: 10.21608/mjd.2021.199968
MLA
. "Bond strength of machinable ceramic using conventional silane and multipurpose primer.". Mansoura Journal of Dentistry, 8, 2, 2021, 16-20. doi: 10.21608/mjd.2021.199968
HARVARD
(2021). 'Bond strength of machinable ceramic using conventional silane and multipurpose primer.', Mansoura Journal of Dentistry, 8(2), pp. 16-20. doi: 10.21608/mjd.2021.199968
VANCOUVER
Bond strength of machinable ceramic using conventional silane and multipurpose primer.. Mansoura Journal of Dentistry, 2021; 8(2): 16-20. doi: 10.21608/mjd.2021.199968