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Abstract Title:Photobiomodulation by a 635nm Diode Laser on Peri-Implant Bone: Primary and Secondary Stability and骨密度分析 - 随机临床试验。
摘要来源:
生物元素。 2019; 2019:2785302。 EPUB 2019 4月22日。PMID: 31143771“> 31143771 Grzech-Leśniak,Marzena Dominiak,Umberto Romeo
文章隶属关系:Jacek Matys
摘要:
简介:>
目标: 我们的目的study was to evaluate the stabilization (primary and secondary) and bone density in peri-implant zone after LLLT protocol using a 635 nm diode laser.
MATERIAL AND METHODS: The research included 40 implants placed in the posterior region of a mandible in 24 patients (8 women and 16 man; age: 46.7±8。7年)。根据治疗程序,将患者随机分为2组G1(n = 12,18种植入物)和G2(n = 12,22个植入物); G1 (test): 635 nm laser, with handpiece diameter: 8mm, output power: 100mW, spot area: 0.5024cm, average power density: 199.04mW/cm, continuous mode, dose: 4J per point (8J/cm), time: 40 sec per point, 2 points (irradiation on a buccal and a lingual side of the alveolus/implant), and total energy per session 8J; G2(对照):无激光照射。根据以下方案对G1(测试)组植入物进行照射:手术前1天,手术后立即进行,第2、4,7和14天。所有治疗课程后的总能量为48J。使用最近端装置(骨膜测试值:PTV)测量植入物的稳定性(手术后立即测量手术后的7天,2周,4周和2个月),并使用锥形梁计算机断层扫描(灰度尺度值)(手术后立即进行手术,4周和12周后进行治疗后)。 class =“ sub_abstract_label”>结果: 不同时间点的平均植入物稳定性在635 nm激光照射(G1)后在2和4week处显示出较低的PTV值(较高的稳定性),而对照组(G2)组(g2)组(p <0.01)。与非辐照植入物相比,激光组观察到12周后植入物的次要稳定性不高(p> 0.05)。钛植入物的顶,中间和宫颈水平的平均灰度值显示像素灰度值的降低2周后,与G2组相比,G1组较低(P <0.01)。 The value of grayscale after 12 weeks was significantly higher at the middle and apical level of the implants in the G1group in contrast to the G2 group (p<0.01).
CONCLUSION: The application of the 635 nm diode laser enhanced secondary implant stability and bone density.但是,为了评估LLLT对不同骨密度不同的植入骨骼的影响,需要对较大研究组进行进一步控制的长期试验。