Mechanical properties of glass-fibre-reinforced composite posts after laser irradiation with different energy densities

KIRMALI Ö., AKCAKUS BATTAL T., TÜRKER N., DÜNDAR A.

AUSTRALIAN ENDODONTIC JOURNAL, cilt.47, sa.1, ss.34-42, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47 Sayı: 1
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1111/aej.12443
  • Dergi Adı: AUSTRALIAN ENDODONTIC JOURNAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, MEDLINE
  • Sayfa Sayıları: ss.34-42
  • Anahtar Kelimeler: Er, Cr, flexural modulus, flexural strength, glass-fibre-reinforced composite, surface treatment, YSGG laser, OUT BOND STRENGTH, SURFACE TREATMENTS, FLEXURAL PROPERTIES, FATIGUE RESISTANCE, RESIN CEMENT, STRUCTURAL CHARACTERISTICS, ER,CRYSGG LASER, SHEAR BOND, ADHESION, ROUGHNESS
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The aim of the present study was to evaluate the effect of the surface treatments on flexural strengths and flexural modulus of glass-fibre-reinforced composite (GFRC) posts. Sixty-three posts were randomly divided into 9 groups (n = 7), and various surface treatments were performed. The control group was left untreated. Other groups were treated with 9% hydrofluoric acid, sandblasting with 120 mu m Al(2)O(3)particles and Er,Cr:YSGG laser irradiation with different powers (1 W, 2 W, 3 W, 4 W, 5 W and 6 W). The samples were subjected to 3-point bending test, and data were calculated. Statistical analysis was performed. The flexural strengths of fibre posts treated with sandblasting, hydrofluoric acid, 1 W and 2 W laser were statistically similar with control group(P > 0.01). However, the flexural strength of fibre posts treated with 3 W, 4 W, 5 W and 6 W laser was statistically lower than control group(P < 0.01). High laser irradiations cause melting on the post surface and breaks in fibrils.