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Enamel surface roughness analysis after laser ablation and acid‐etching
Author(s) -
ARCORIA C.J.,
LIPPAS M.G.,
VITASEK B.A.
Publication year - 1993
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1993.tb01603.x
Subject(s) - enamel paint , materials science , profilometer , surface roughness , laser , surface finish , composite material , ablation , etching (microfabrication) , excimer laser , laser ablation , optics , physics , engineering , layer (electronics) , aerospace engineering
Laser‐roughened enamel surfaces have been shown to provide for greater acid‐resistance and enhanced restorative material/enamel bond strength. Extracted tooth enamel was irradiated with several lasers: CO 2 /Nd:YAG (CW), CO 2 (RSP), Nd:YAG (CW), Nd:YAG (Q‐switched), Argon (CW), and Ar:F excimer. Additional teeth were acid‐etched. Energy densities were standardized at 25‐47 J/cm 2 for all mediums. Surface profile analyses were conducted with a profilometer to determine the amount of enamel surface roughness. The acid‐etched samples exhibited both a greater amount of surface roughness and a qualitatively different type of enamel surface morphology than the laser‐treated specimens. Independent use of the CO 2 and Nd:YAG beams exhibited a moderate amount of roughness, while the coaxial CO 2 /Nd:YAG beam displayed surface roughness approaching that of the acid‐etch samples. Different laser mediums produce enamel surface morphologies that are characteristic of a variety of inherent lasing parameters.