Purpose: The longevity of zirconia restoration depends upon its esthetic, proper occlusion, marginal adaptation, and restoration retention. This study aimed to investigate the combination of 10-MDP-containing primers between the two commercial systems (Scotchbond Universal Plus Adhesive and Panavia V5) and airborne-particle abrasion on shear bond strength (SBS) between zirconia and resin cement.
Methods: High translucency zirconia discs were sectioned and sintered according to the manufacturer's recommendations. The specimens were randomly applied with three different primers (Scotchbond Universal Adhesive, Tooth Primer, and Clearfil Ceramic Primer). Then, each group was bonded with Panavia V5 and RelyX™ Universal resin cements. Airborne-particle abrasion on the zirconia surfaces was also conducted using the manufacturer's bonding protocol for both resin cements. SBS was analyzed by a two-way ANOVA with Tukey's adjustment for multiple comparisons (α = 0.05).
Results: Panavia V5 exhibited the highest SBS with Scotchbond Universal Adhesive (9.66±2.00 MPa) and Tooth Primer (8.47±2.08 MPa), respectively. As-sintered zirconia luted with primers and RelyX Universal resin cement exhibited lower SBS than that of Panavia V5. In regard to air-abrasion, air-abraded zirconia luted with Tooth Primer and Panavia V5 exhibited statistically significant higher SBS (29.26±3.26 MPa) than other groups (p<0.0001).
Conclusions: Combining primers from different adhesive cement systems may significantly enhance the bond strength. Zirconia luted with Scotchbond Universal Adhesive and Panavia V5 achieved the highest bond strength when combined with airborne-particle abrasion.
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http://dx.doi.org/10.1186/s12903-025-05578-2 | DOI Listing |
Dent Mater
February 2025
University of Birmingham, Department of Dentistry, School of Health Sciences, College of Medicine and Health5 Mill Pool Way, B5 7EG, United Kingdom. Electronic address:
Background: Generally, the bonding of one material to another is important for function, and especially in so-called 'adhesive dentistry'. However, there are concerns about the clinical relevance and the discriminatory power of currently employed tests of bond strength.
Objective: Develop and validate a test protocol based on 4-point bending that may be used to examine the bonding of various dental materials to a range of substrates.
Sci Rep
February 2025
Conservative Dentistry Department, Faculty of Dentistry, Cairo University, Al Saraya Str. 11, Manial, Cairo, Egypt.
The aim of the current study was to evaluate the clinical performance of the novel radio-opaque universal adhesive "Scotchbond™ Universal Adhesive Plus" compared to conventional universal adhesive "Single Bond Universal" over 24 months in cervical carious lesions. Fifty participants with cervical carious lesions were randomly allocated into two groups (n = 25); either Scotchbond™ Universal Plus Adhesive (intervention) or Single Bond™ Universal Adhesive (control). Restorations were assessed at baseline, 12 and 24 months using the modified USPHS criteria.
View Article and Find Full Text PDFBMC Oral Health
February 2025
Division of Prosthodontics, Faculty of Dentistry, Thammasat University, 99 M.18 Paholyothin Rd, Klong Nueng, Klong Luang, Pathumthani, 1212, Thailand.
Purpose: The longevity of zirconia restoration depends upon its esthetic, proper occlusion, marginal adaptation, and restoration retention. This study aimed to investigate the combination of 10-MDP-containing primers between the two commercial systems (Scotchbond Universal Plus Adhesive and Panavia V5) and airborne-particle abrasion on shear bond strength (SBS) between zirconia and resin cement.
Methods: High translucency zirconia discs were sectioned and sintered according to the manufacturer's recommendations.
Oper Dent
February 2025
*Ana Maria Spohr, DDS, MS, PhD, Department of Restorative Dentistry, School of Dentistry Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil.
The aim of this study was to investigate whether different concentrations of acacia extract could improve the biological stability of dentin collagen. Slice (n=3) and beam (n=5) samples of dentin obtained from human third molars were demineralized and treated with the following solutions: G1 (control)-deionized water; G2-1% acacia extract; G3-2% acacia extract; and G4-3% acacia extract. The dentin slices were analyzed by Fourier transform infrared (FTIR) spectrophotometry to observe their interactions with collagen.
View Article and Find Full Text PDFJ Prosthet Dent
February 2025
Professor, Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy. Electronic address:
Statement Of Problem: The effects of different finish line designs on the seating accuracy of partial indirect restorations are unclear.
Purpose: The purpose of this in vitro study was to evaluate the influence of different preparation designs on the marginal and internal discrepancy of lithium disilicate computer-aided design and computer-aided manufacture (CAD-CAM) partial indirect restorations before and after thermomechanical aging by using 3-dimensional (3D) microcomputed tomography (μCT).
Material And Methods: Forty human molars were divided according to the preparation design and their location relative to the tooth survey line: SO: rounded shoulder occlusal to the survey line; CO: chamfer occlusal to the survey line; SA: rounded shoulder apical to the survey line; CA: chamfer apical to the survey line (n=10).
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