Khalil Marwa I, Sakr Haitham
Department of Oral Medicine, Periodontology, Oral Diagnosis, and Oral Radiology, Faculty of Dentistry, Alexandria University, Alexandria, EGY.
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Pharos University in Alexandria, Alexandria, EGY.
Cureus. 2023 May 8;15(5):e38731. doi: 10.7759/cureus.38731. eCollection 2023 May.
Background Although dental implants have demonstrated very high success rates, they are susceptible to complications such as peri-implantitis that can lead to failure. Methods Twenty implants with surfaces grit-blasted using hydroxyapatite and acid-etched were randomly divided into four groups (five in each group). Three groups were assigned to laser treatments: Group I (erbium, chromium-doped: yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser), Group II (650-nm diode laser), and Group III (808-nm diode), and one control group, Group IV. The surface roughness parameters (roughness average(Ra) and root mean square roughness(Rq)) were measured using a non-contact optical profilometer and scanning electron microscope to evaluate the surface topography after the laser treatments. Results Significant differences were observed between the laser groups regarding the surface roughness Ra (3.56±0.26, 3.45±0.19, 3.77±0.42, p=0.0004, p=0.0002, p=0.001) and Rq values (4.49±0.34, 4.35±0.26, 4.72±0.56, p=0.0007, p=0.0006, p=0.002) and the control group (2.81±0.10; 3.57±0.19). However, no significant difference was observed between the different laser treatment modalities. The scanning electron microscope images revealed some morphological changes on the implant surfaces following laser treatment, but no melted morphology was observed. Conclusions The application of Er,Cr:YSGG, 650-nm diode laser, and 808-nm diode did not show melting changes on implant topography. However, some increase in surface roughness was detected. Further studies are recommended to assess the effectiveness of these laser settings on bacterial reduction and osseointegration.
尽管牙种植体已显示出非常高的成功率，但它们易受诸如种植体周围炎等并发症的影响，这些并发症可能导致种植失败。方法：将20个表面经羟基磷灰石喷砂和酸蚀处理的种植体随机分为四组（每组5个）。三组接受激光治疗：第一组（掺铒铬：钇、钪、镓、石榴石（Er,Cr:YSGG）激光），第二组（650纳米二极管激光），第三组（808纳米二极管激光），以及一个对照组，第四组。使用非接触式光学轮廓仪和扫描电子显微镜测量表面粗糙度参数（平均粗糙度（Ra）和均方根粗糙度（Rq）），以评估激光治疗后的表面形貌。结果：在激光组之间，表面粗糙度Ra值（3.56±0.26、3.45±0.19、3.77±0.42，p = 0.0004、p = 0.0002、p = 0.001）和Rq值（4.49±0.34、4.35±0.26、4.72±0.56，p = 0.0007、p = 0.0006、p = 0.002）与对照组（2.81±0.10；3.57±0.19）之间存在显著差异。然而，不同激光治疗方式之间未观察到显著差异。扫描电子显微镜图像显示激光治疗后种植体表面有一些形态变化，但未观察到熔化形态。结论：应用Er,Cr:YSGG、650纳米二极管激光和808纳米二极管激光在种植体形貌上未显示熔化变化。然而，检测到表面粗糙度有一些增加。建议进一步研究评估这些激光设置在减少细菌和骨整合方面的有效性。
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