Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations
Samo za registrovane korisnike
2024
Autori
Matić, TamaraLežaja Zebić, Maja
Miletić, Vesna
Trajković, Isaak
Milošević, Miloš
Racić, Aleksandar
Veljović, Đorđe
Članak u časopisu (Objavljena verzija)
,
© 2023 Wiley Periodicals LLC.
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This study aimed to (1) comparatively analyze properties of Sr- and Mg-substituted
hydroxyapatite (HAP)-based dental inserts; (2) evaluate insert bonding to restorative
materials, and (3) evaluate the effect of doped HAP inserts on fracture resistance
(FR) of human molars with large occlusal restorations. By ion-doping with Sr or Mg,
3 insert types were obtained and characterized using XRD, SEM, Vickers hardness and
fracture toughness. Shear bond strength (SBS) was determined between acid etched or
unetched inserts and following materials: Maxcem cement (Kerr); Filtek Z250
(3M) bonded with Single Bond Universal (SBU; 3M) or Clearfil Universal (Cf; Kuraray).
Modified Class I cavities were prepared in 16 intact molars and restored using insert
+ composite or composite only (control) (n = 8/group). FR of restored molars was
determined by static load until fracture upon thermal cycling. Fracture toughness was
similar between Sr/Mg-doped inserts (0.94–1.04 MPam 1/2 p = .429). Mg-...doped
inserts showed greater hardness (range 4.78–5.15 GPa) than Sr6 inserts (3.74
± 0.31 GPa; p < .05). SBS for SBU and Cf adhesives (range 7.19–15.93 MPa) was higher
than for Maxcem (range 3.07–5.95 MPa) (p < .05). There was no significant difference
in FR between molars restored with insert-containing and control restorations (3.00
± 0.30 kN and 3.22 ± 0.42 kN, respectively; p > .05). HAP-based inserts doped with
Mg/Sr had different composition and mechanical properties. Adhesive bonding to
inserts resulted in greater bond strength than cementation, which may be improved by
insert acid-etching. Ion-doped HAP inserts did not affect FR of restored molars. In conclusion,
HAP-based dental inserts may potentially replace dentin in large cavities, without
affecting fracture resistance of restored teeth.
Ključne reči:
dental insert / dentin substitute / fracture resistance / hydroxyapatite / ion-doping / occlusal restorationsIzvor:
Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2024, 112, 1, e35331-Izdavač:
- John Wiley and Sons Inc.
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200287 (Inovacioni centar Tehnološko-metalurškog fakulteta u Beogradu doo) (RS-MESTD-inst-2020-200287)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200135 (Univerzitet u Beogradu, Tehnološko-metalurški fakultet) (RS-MESTD-inst-2020-200135)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200129 (Univerzitet u Beogradu, Stomatološki fakultet) (RS-MESTD-inst-2020-200129)
Napomena:
- Peer reviewed manuscript: https://technorep.tmf.bg.ac.rs/handle/123456789/7495
Povezane informacije:
- Verzija dokumenta
https://technorep.tmf.bg.ac.rs/handle/123456789/7495
DOI: 10.1002/jbm.b.35331
ISSN: 1552-4973
WoS: 001077237500001
Scopus: 2-s2.0-85173531608
Kolekcije
Institucija/grupa
Inovacioni centarTY - JOUR AU - Matić, Tamara AU - Ležaja Zebić, Maja AU - Miletić, Vesna AU - Trajković, Isaak AU - Milošević, Miloš AU - Racić, Aleksandar AU - Veljović, Đorđe PY - 2024 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6659 AB - This study aimed to (1) comparatively analyze properties of Sr- and Mg-substituted hydroxyapatite (HAP)-based dental inserts; (2) evaluate insert bonding to restorative materials, and (3) evaluate the effect of doped HAP inserts on fracture resistance (FR) of human molars with large occlusal restorations. By ion-doping with Sr or Mg, 3 insert types were obtained and characterized using XRD, SEM, Vickers hardness and fracture toughness. Shear bond strength (SBS) was determined between acid etched or unetched inserts and following materials: Maxcem cement (Kerr); Filtek Z250 (3M) bonded with Single Bond Universal (SBU; 3M) or Clearfil Universal (Cf; Kuraray). Modified Class I cavities were prepared in 16 intact molars and restored using insert + composite or composite only (control) (n = 8/group). FR of restored molars was determined by static load until fracture upon thermal cycling. Fracture toughness was similar between Sr/Mg-doped inserts (0.94–1.04 MPam 1/2 p = .429). Mg-doped inserts showed greater hardness (range 4.78–5.15 GPa) than Sr6 inserts (3.74 ± 0.31 GPa; p < .05). SBS for SBU and Cf adhesives (range 7.19–15.93 MPa) was higher than for Maxcem (range 3.07–5.95 MPa) (p < .05). There was no significant difference in FR between molars restored with insert-containing and control restorations (3.00 ± 0.30 kN and 3.22 ± 0.42 kN, respectively; p > .05). HAP-based inserts doped with Mg/Sr had different composition and mechanical properties. Adhesive bonding to inserts resulted in greater bond strength than cementation, which may be improved by insert acid-etching. Ion-doped HAP inserts did not affect FR of restored molars. In conclusion, HAP-based dental inserts may potentially replace dentin in large cavities, without affecting fracture resistance of restored teeth. PB - John Wiley and Sons Inc. T2 - Journal of Biomedical Materials Research Part B: Applied Biomaterials T1 - Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations IS - 1 SP - e35331 VL - 112 DO - 10.1002/jbm.b.35331 ER -
@article{ author = "Matić, Tamara and Ležaja Zebić, Maja and Miletić, Vesna and Trajković, Isaak and Milošević, Miloš and Racić, Aleksandar and Veljović, Đorđe", year = "2024", abstract = "This study aimed to (1) comparatively analyze properties of Sr- and Mg-substituted hydroxyapatite (HAP)-based dental inserts; (2) evaluate insert bonding to restorative materials, and (3) evaluate the effect of doped HAP inserts on fracture resistance (FR) of human molars with large occlusal restorations. By ion-doping with Sr or Mg, 3 insert types were obtained and characterized using XRD, SEM, Vickers hardness and fracture toughness. Shear bond strength (SBS) was determined between acid etched or unetched inserts and following materials: Maxcem cement (Kerr); Filtek Z250 (3M) bonded with Single Bond Universal (SBU; 3M) or Clearfil Universal (Cf; Kuraray). Modified Class I cavities were prepared in 16 intact molars and restored using insert + composite or composite only (control) (n = 8/group). FR of restored molars was determined by static load until fracture upon thermal cycling. Fracture toughness was similar between Sr/Mg-doped inserts (0.94–1.04 MPam 1/2 p = .429). Mg-doped inserts showed greater hardness (range 4.78–5.15 GPa) than Sr6 inserts (3.74 ± 0.31 GPa; p < .05). SBS for SBU and Cf adhesives (range 7.19–15.93 MPa) was higher than for Maxcem (range 3.07–5.95 MPa) (p < .05). There was no significant difference in FR between molars restored with insert-containing and control restorations (3.00 ± 0.30 kN and 3.22 ± 0.42 kN, respectively; p > .05). HAP-based inserts doped with Mg/Sr had different composition and mechanical properties. Adhesive bonding to inserts resulted in greater bond strength than cementation, which may be improved by insert acid-etching. Ion-doped HAP inserts did not affect FR of restored molars. In conclusion, HAP-based dental inserts may potentially replace dentin in large cavities, without affecting fracture resistance of restored teeth.", publisher = "John Wiley and Sons Inc.", journal = "Journal of Biomedical Materials Research Part B: Applied Biomaterials", title = "Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations", number = "1", pages = "e35331", volume = "112", doi = "10.1002/jbm.b.35331" }
Matić, T., Ležaja Zebić, M., Miletić, V., Trajković, I., Milošević, M., Racić, A.,& Veljović, Đ.. (2024). Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations. in Journal of Biomedical Materials Research Part B: Applied Biomaterials John Wiley and Sons Inc.., 112(1), e35331. https://doi.org/10.1002/jbm.b.35331
Matić T, Ležaja Zebić M, Miletić V, Trajković I, Milošević M, Racić A, Veljović Đ. Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations. in Journal of Biomedical Materials Research Part B: Applied Biomaterials. 2024;112(1):e35331. doi:10.1002/jbm.b.35331 .
Matić, Tamara, Ležaja Zebić, Maja, Miletić, Vesna, Trajković, Isaak, Milošević, Miloš, Racić, Aleksandar, Veljović, Đorđe, "Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations" in Journal of Biomedical Materials Research Part B: Applied Biomaterials, 112, no. 1 (2024):e35331, https://doi.org/10.1002/jbm.b.35331 . .