Scopus
Effect of femtosecond laser induced surface patterns on the flexural strength of monolithic zirconia
Journal of Biomedical Materials Research - Part B Applied Biomaterials · Haziran 2024
Makale Bilgileri
DergiJournal of Biomedical Materials Research - Part B Applied Biomaterials
Yayın TarihiHaziran 2024
Cilt / Sayfa112
Scopus ID2-s2.0-85195004675
Özet
To investigate how patterns generated by femtosecond (fs) laser and femtosecond laser power affect the surface roughness (Ra) and biaxial flexural strength (BFS) of monolithic zirconia. Eighty disk-shaped zirconia specimens were divided into eight subgroups (n = 10): Control (C), airborne-particle abrasion (APA), 400 mW fs laser (spiral [SP(400)], square [SQ(400)], circular [CI(400)]), and 700 mW fs laser ([SP(700)], [SQ(700)], [CI(700)]). Ra values were calculated by using a surface profilometer. One additional specimen per group was analyzed with scanning electron microscopy and x-ray diffractometry. BFS values were obtained by using the piston-on-3-ball test. One-way ANOVA and either Tukey's HSD (BFS) or Tamhane's T2 (Ra) tests were used to evaluate data (α = 0.05). Regardless of the pattern and power, fs laser groups had higher Ra than C and APA, while SP groups had lower Ra than CI and SQ groups (p ≤ 0.004). For each pattern, Ra increased with higher laser power (p < 0.001), while the laser power did not affect the BFS (p ≥ 0.793). CI and SQ groups had lower BFS than the other groups (p ≤ 0.040), whereas SP groups had similar BFS to C and APA (p ≥ 0.430). Fs laser microstructuring with spiral surface pattern increased the Ra without jeopardizing the BFS of zirconia. Thus, this treatment might be an option to roughen tested zirconia.
Yazarlar (5)
1
Yener Okutan
2
Yasemin Gündoğdu
3
Mustafa Borga Donmez
4
Huseyin Seker
5
Hamdi Şükür Kılıç
Anahtar Kelimeler
airborne particle abrasion
biaxial flexural strength
femtosecond laser
monolithic zirconia
surface roughness
Kurumlar
Aydin Adnan Menderes University
Aydin Turkey
İstinye Üniversitesi
Istanbul Turkey
Selçuk Üniversitesi
Selçuklu Turkey
University of Bern
Bern Switzerland