Investigating the impact of surface treatments on tensile bond strength between pediatric prefabricated zirconia crowns and primary maxillary incisors with various types of luting cement: an in vitro study.

Autor: Chinadet W; Division of Paediatric Dentistry, Department of Orthodontics and Paediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand., Pengpue P; Division of Paediatric Dentistry, Department of Orthodontics and Paediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand., Chaijareenont P; Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand. Pisaisit.c@cmu.ac.th.
Jazyk: angličtina
Zdroj: European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry [Eur Arch Paediatr Dent] 2024 Oct; Vol. 25 (5), pp. 677-684. Date of Electronic Publication: 2024 Jul 24.
DOI: 10.1007/s40368-024-00926-2
Abstrakt: Purpose: This study aimed to evaluate the effects of two surface treatments on the tensile bond strength of prefabricated zirconia crowns (PZCs) using bioactive and resin cements.
Methods: Forty extracted human primary maxillary incisors were prepared and divided into four groups based on surface treatment and cement type: (1) sandblast with bioactive cement, (2) sandblast with resin cement, (3) 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) with bioactive cement, and (4) 10-MDP with resin cement. After 24 h of cementation, specimens underwent 5000 thermocycling cycles between 5 °C and 55 °C. Tensile bond strengths were measured using a universal testing machine. The data were analyzed using two-way ANOVA and Tukey's post hoc test, with significance set at p < 0.05.
Results: The mean tensile bond strengths observed were 2.25 ± 1.27 MPa for sandblast with bioactive cement, 1.39 ± 0.95 MPa for sandblast with resin cement, 2.45 ± 1.15 MPa for 10-MDP with bioactive cement, and 1.68 ± 1.03 MPa for 10-MDP with resin cement. Significant improvements in bond strength were observed in the bioactive cement group treated with 10-MDP compared to those treated with sandblasting (p < 0.05). The 10-MDP treatment did not enhance bond strength for the resin cement compared to sandblasting.
Conclusions: Bioactive cement generally provides a higher tensile bond strength than resin cement. While 10-MDP treatment enhances bond strength when used with bioactive cement, it does not show a similar enhancement when used with resin cement compared to sandblasting, indicating its effectiveness is selective based on the type of cement used.
(© 2024. The Author(s), under exclusive licence to European Academy of Paediatric Dentistry.)
Databáze: MEDLINE
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