研究目的
Investigating the surface roughness parameters of zirconia implants after erbium YAG laser irradiation and its safety for implant surface decontamination.
研究成果
The use of the Er:YAG (1.5 W, 10 and 30 Hz) is a safe tool for zirconia implant surface decontamination, showing a significant reduction of the mean and peak surface roughness values after laser irradiation without signs of thermal defects.
研究不足
No formal sample size calculation underlying the trial and no strict random assignment, which may cause allocation or selection bias.
1：Experimental Design and Method Selection:
Implants were randomized into two groups based on laser irradiation parameters (
2：5 W/10 Hz and 5 W/30 Hz). The surface topography was analyzed before and after irradiation using laser-scanning microscopy. Sample Selection and Data Sources:
Six zirconia implants (TAVDental, 4 ? × 10 mm) were divided into two groups (n=3).
3：3). List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Er:YAG dental laser device (LiteTouchTM), side-firing tip (
4：3× 19 mm), laser-scanning microscope (VK-X100K/X200K). Experimental Procedures and Operational Workflow:
Laser was applied in a scanning motion (non-contact mode/2 mm distance) for 120 s under 80% water irrigation.
5：Data Analysis Methods:
A three-factor linear mixed effect model was fitted to the data of the response variables roughness peak and roughness mean. Statistical analyses were conducted using SAS 9.4.
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