Karpathak Shilpi, Mansuri Samir, Dev Shruti Vishal, Pilli Jyostnadevi, Alwithanani N, Kondreddy Kameswari
Department of Prosthodontics, Rungta College of Dental Sciences and Research, Bhilai, Chhattisgarh, India.
Consultant Oral and Maxillofacial Surgeon, Ahmedabad, Gujrat, India.
J Pharm Bioallied Sci. 2023 Jul;15(Suppl 1):S183-S186. doi: 10.4103/jpbs.jpbs_449_22. Epub 2023 Jul 5.
In many oral procedures that involve the implants, hair implantations, "" is commonly applied. The advantages are many. In this study, the mechanical resistance of PRF under resistance pull on a longitudinal axis was assessed and compared.
For the current study, 60 volunteers donated each 10 ml of their blood and hence a total volume of 600 ml of blood was procured that was analyzed for the current study. The total volume was grouped to three groups where they receive three resistance centrifugation forces of "F-200,600,800 m/s²." In each group, 20 samples were tested for each level of the G-resistance. Each group was further divided as two subgroups of different times of wait, where they were centrifuged at baseline time and after a stand of 30 minutes. On universal testing equipment, the PRF membranes were mechanically tensioned in order to determine each membrane's resistance force. These values were compared for any statistical variance using appropriate statistical tools keeping < 0.05.
Any applied force had no statistically significant effect on the centrifugation duration for membrane resistance. When the resistance was applied for the PRP samples immediately after they were procured, no significant variation was seen at all the grades of the centrifugation forces; consequently, the T30 group showed a statistically significant variance for the centrifugation forces applied ( = 0.04), with the highest value when the greatest force was applied. According to the results, the centrifugation waiting period could be determined based on the application requirement.
For immediate membrane usage, the centrifugation had no effect on resistance; however, after 30 minutes, a membrane with greater resistance was produced by applying more force.
在许多涉及植入物、毛发移植的口腔手术中,富血小板纤维蛋白(PRF)通常被应用。其优点众多。在本研究中,评估并比较了PRF在纵轴上的抗拉力下的机械阻力。
在本研究中,60名志愿者每人捐献10毫升血液,因此共采集了600毫升血液用于本研究分析。将总体积分为三组,分别接受“F - 200、600、800米/秒²”三种抗离心力。在每组中,对每个抗G水平测试20个样本。每组进一步分为两个不同等待时间的亚组,分别在基线时间和静置30分钟后进行离心。在万能测试设备上,对PRF膜进行机械拉伸以确定每个膜的阻力。使用适当的统计工具比较这些值的任何统计差异,设定P < 0.05。
任何施加的力对膜阻力的离心持续时间均无统计学显著影响。当PRP样本采集后立即施加阻力时,在所有离心力等级下均未观察到显著变化;因此,T30组在施加的离心力方面显示出统计学显著差异(P = 0.04),施加最大力时阻力值最高。根据结果,可根据应用需求确定离心等待时间。
对于立即使用膜,离心对阻力无影响;然而,30分钟后,施加更大的力会产生阻力更大的膜。