Effect of femtosecond laser induced surface patterns on the flexural strength of monolithic zirconia
Küçük Resim Yok
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
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 (alpha = 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.
Açıklama
Anahtar Kelimeler
Airborne Particle Abrasion, Biaxial Flexural Strength, Femtosecond Laser, Monolithic Zirconia, Surface Roughness
Kaynak
Journal of biomedical materials research part b: applied biomaterials
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
112
Sayı
6
Künye
Okutan, Y., Gundogdu, Y., Donmez, M. B., Seker, H., & Kilic, H. S. (2024). Effect of femtosecond laser induced surface patterns on the flexural strength of monolithic zirconia. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 112(6), e35432.
