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Mechanical Properties Evaluation of Three Different Materials for Implant Supported Overdenture: An In-Vitro Study

Gibreel Mona; Perea-Lowery Leila; Lassila Lippo; Vallittu Pekka K

Mechanical Properties Evaluation of Three Different Materials for Implant Supported Overdenture: An In-Vitro Study

Gibreel Mona
Perea-Lowery Leila
Lassila Lippo
Vallittu Pekka K
Katso/Avaa
materials-15-06858-v2.pdf (1.218Mb)
Lataukset: 

MDPI
doi:10.3390/ma15196858
URI
https://www.mdpi.com/1996-1944/15/19/6858
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Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2022112968033
Tiivistelmä

Aim:

the aim of this study was to compare the flexural strength and elastic modulus of three-dimensionally (3D) printed, conventional heat-cured, and high-impact implant-supported overdenture materials specimens.

Materials and Methods:

Thirty implant-supported overdenture materials specimens (bar-shaped, 65.0 x 10.2 x 5.1 +/- 0.2 mm(3)) with one central hole were fabricated using 3D-printed, heat-cured conventional, and high-impact denture base resins (n = 10/group). Autopolymerizing acrylic resin was used to attach titanium matrix housings to the central holes of the specimens. A three-point bending test was conducted using a universal testing machine and a model analog with a crosshead speed of 5 mm/min. The indicative flexural strength and elastic modulus were recorded. Data were statistically analyzed using analysis of variance (ANOVA) and the Tukey tests at alpha = 0.05.

Results:

One-way ANOVA revealed a significant effect of denture base material on the flexural strength (p < 0.001) but not on the elastic modulus (p = 0.451) of the evaluated materials. The flexural strength of the 3D-printed specimens (95.99 +/- 9.87 MPa) was significantly higher than the conventional (77.18 +/- 9.69 MPa; p < 0.001) and high-impact ones (82.74 +/- 7.73 MPa; p = 0.002).

Conclusions:

The maximum flexural strength was observed in the 3D-printed implant-supported overdenture material specimens, which might indicate their suitability as an alternative to the conventionally fabricated ones. Flexural strength and elastic modulus of conventional and high-impact heat-cured implant-supported overdenture materials specimens were comparable.

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  • Rinnakkaistallenteet [19207]

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