Event Title

Flexural Strength of Provisional Restorative Materials for Fixed Prosthodontics

Session

Medical, Dental and Pharmaceutical Sciences

Description

The aim of this in vitro study was to evaluate flexural strength of different type of composite and methacrylate-based materials used to fabricate provisional restorations. Twenty identical 25 × 2 × 2 mm specimens were made from ten interim materials. Ten samples from each group were tested after storing at 37°C in the artificial saliva for 7 days followed by thermal cycling (500 cycles, 5-55°C, 45 s. dwell). Ten samples from each group stored in distilled water solution at 37°C for 24 hours were used as controls. Data were analyzed using the Kruskal-Wallis and Mann-Whitney U-test, and the significance level was set at α = 0.05. The lowest and highest flexural strengths were found from self-cure methyl methacrylate resins and from heat-cure methyl methacrylate resins, respectively. The use of heat-cure methacrylate and dual-cure composite resins are preferred over chair side methacrylate (self-cure) and composite based materials (self-cure, light-cure) when the provisional restoration has to be in service for a long period of time.

Keywords:

Composite, Methacrylate

Session Chair

Agim Prokshaj

Session Co-Chair

Aida Rexhepi

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-437-69-1

Location

Pristina, Kosovo

Start Date

27-10-2018 10:45 AM

End Date

27-10-2018 12:15 PM

DOI

10.33107/ubt-ic.2018.360

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Oct 27th, 10:45 AM Oct 27th, 12:15 PM

Flexural Strength of Provisional Restorative Materials for Fixed Prosthodontics

Pristina, Kosovo

The aim of this in vitro study was to evaluate flexural strength of different type of composite and methacrylate-based materials used to fabricate provisional restorations. Twenty identical 25 × 2 × 2 mm specimens were made from ten interim materials. Ten samples from each group were tested after storing at 37°C in the artificial saliva for 7 days followed by thermal cycling (500 cycles, 5-55°C, 45 s. dwell). Ten samples from each group stored in distilled water solution at 37°C for 24 hours were used as controls. Data were analyzed using the Kruskal-Wallis and Mann-Whitney U-test, and the significance level was set at α = 0.05. The lowest and highest flexural strengths were found from self-cure methyl methacrylate resins and from heat-cure methyl methacrylate resins, respectively. The use of heat-cure methacrylate and dual-cure composite resins are preferred over chair side methacrylate (self-cure) and composite based materials (self-cure, light-cure) when the provisional restoration has to be in service for a long period of time.