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EAO-289 / OC-SU-007 | Histologic evaluation of effects of PRF in combination with Bone Allograft in sinus augmentation
Clinical Oral Implants Research ( IF 4.3 ) Pub Date : 2021-12-28 , DOI: 10.1111/clr.45_13855


Farid Shiezadeh1; Vahid Khoshkam2,*; Milad Taher3; Hamid Reza Arab1; Reihaneh Shafieian3

1Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; 2Private Practice, El Paso, United States; 3Mashhad University of Medical Sciences, Mashhad, Iran

Background: The usage of deproteinized bovine bone in sinus augmentation has been evaluated and demonstrated previously however no study has been done on the potential effect of bone substitutes in combination with PRF. In this study we aimed to histologically evaluate combination effect of bone allograft and PRF.

Aim/Hypothesis: The aim of this study was to histologically evaluate and compare outcomes of sinus floor elevation using allograft bone particles with or without platelet rich fibrin (PRF).

Material and Methods: 20 patients in need of maxillary sinus augmentation using the lateral approach at implant department of Mashhad Dental School were selected for this study. Randomization was done with block randomization method. For the test group, sinus floor elevation was performed using PRF combined with bone allograft and in the control group the procedure was done with the usage of bone allograft alone. After 6 months, bone biopsies were obtained from the grafted posterior maxilla, and un-decalcified ground sections were prepared. Bone characteristics were evaluated using histological observation and histomorphometric analyses. Specifically, histomorphometric dimensions of newly formed bone, bone marrow and remaining particles were evaluated.

Results: 20 patients who were randomly divided into two groups of test and control completed the study. The mean of newly formed bone was 43.25 ± 5.22 percent in the test group and 38.25 ± 7.01 percent in control group and the mean of new bone marrow in the test group was 6.81 ± 2.19 percent and in the control group was 10.23 ± 4.49 percent and the mean of remaining particles was 9.35 ± 3.43 percent in test group and 13.18 ± 3.67 percent in the control group. Also, the variables were examined using the Independent Sample Test, which showed for the bone marrow and remaining graft particles variables the difference between the two groups were significant (p < 0.05).

Conclusion and Clinical implications: Our result demonstrated neither an advantage nor disadvantage of the application of PRF in combination with bone Allograft in sinus augmentation after a healing period of 6 months. Although addition of PRF to allograft did not significantly result in more bone formation than allograft alone however, the remaining graft particles and bone marrow were significantly lower in the PRF group than in the allograft group, which may indicate an acceleration in wound healing dynamic in the PRF group.
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Disclosure of Interest: None Declared

Keywords: histomorphometry, sinus elevation



中文翻译:

EAO-289 / OC-SU-007 | PRF联合同种异体骨移植在鼻窦增大中的作用的组织学评估

法里德·希扎德1 ; 瓦希德·科什卡姆2,* ; 米拉德·塔赫3 ; 哈米德·礼萨阿拉伯1 ; Reihaneh Shafieian 3

1马什哈德医科大学牙科研究中心,伊朗马什哈德;2私人执业,埃尔帕索,美国;3马什哈德医科大学,伊朗马什哈德

背景:脱蛋白牛骨在鼻窦增强术中的使用已经评估和证明,但尚未对骨替代物与 PRF 组合的潜在影响进行研究。在这项研究中,我们旨在组织学评估同种异体骨移植和 PRF 的组合效果。

目的/假设:本研究的目的是在组织学上评估和比较使用同种异体骨颗粒(含或不含富血小板纤维蛋白(PRF))对窦底抬高的结果。

材料和方法:本研究选择了 20 名需要在马什哈德牙科学校种植部使用横向入路进行上颌窦增大的患者。随机化采用区组随机化方法进行。试验组采用PRF联合同种异体骨移植进行窦底抬高,对照组仅采用同种异体骨移植。6 个月后,从移植的后上颌骨获得骨活检,并制备未脱钙的地面切片。使用组织学观察和组织形态计量学分析评估骨骼特征。具体而言,评估了新形成的骨、骨髓和剩余颗粒的组织形态学尺寸。

结果: 20例患者随机分为试验组和对照组2组完成研究。试验组新生骨的平均值为 43.25±5.22%,对照组为 38.25±7.01%,试验组新骨髓的平均值为 6.81±2.19%,对照组为 10.23±4.49%和试验组剩余颗粒的平均值为 9.35±3.43%,对照组为 13.18±3.67%。此外,使用独立样本检验检查变量,该检验表明对于骨髓和剩余移植颗粒变量,两组之间的差异是显着的(p < 0.05)。

结论和临床意义:我们的结果表明,在 6 个月的愈合期后,PRF 与同种异体骨移植联合应用在鼻窦增大中既没有优势也没有劣势。尽管在同种异体移植物中加入 PRF 并没有比单独使用同种异体移植物显着导致更多的骨形成,但是 PRF 组中剩余的移植物颗粒和骨髓显着低于同种异体移植物组,这可能表明在PRF 组。
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利益披露:无申报

关键词: 组织形态学,窦性抬高

更新日期:2021-12-29
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