MARGINAL TISSUE-REACTIONS AT OSSEOINTEGRATED TITANIUM FIXTURES .1. A 3-YEAR LONGITUDINAL PROSPECTIVE-STUDY
MARGINAL TISSUE-REACTIONS AT OSSEOINTEGRATED TITANIUM FIXTURES .1. A 3-YEAR LONGITUDINAL PROSPECTIVE-STUDY
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DOI：
10.1016/s0300-9785(86)80010-2
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发表时间：
1986-02-01
影响因子：
2.4
通讯作者：
SBORDONE, L
中科院分区：
文献类型：
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作者：
ADELL, R;LEKHOLM, U;SBORDONE, L
连续16例全牙列缺失患者在7例上颌和9例下颌中提供了95个骨结合钛固定器。后来，Facultium可移动桥连接到基台，连接到固定装置。通过标准化临床和放射学方法，在基线检查和6、12、21、30和39个月后对边缘软硬组织反应进行了研究。在最后一次检查时，还分析了微生物样本和牙龈活检。无菌斑基台的百分比为70- 75%，无任何牙龈炎基台的百分比为80- 85%，在整个研究过程中几乎保持不变。最终检查时的平均探测深度为2.9 mm。大约75%的所有探测深度为3毫米或更少，没有超过5毫米。桥牙龈的距离增加，在调查过程中。附着牙龈包围65%的颊侧和舌侧基台表面。在第一年中，平均仅丢失0.9 mm边缘骨，在接下来的2年中，每年丢失不超过0.05 mm。6个月后，边缘骨水平无显著变化。固定周围骨逐渐变得更加不透射线，特别是在上颌边缘，表明连续的负荷相关的重塑。32份样本中的微生物菌群由球状细胞和不动杆组成，占93%。在14例软组织活检中，35%的组织为健康组织。在另外29%的患者中，仅观察到轻微炎症。对于所使用的任何研究参数，都不能建立恒定的相关性。结论是边缘软组织反应是温和的，并不显着的进行性牙周炎。与传统的临床软组织观察相比，单独固定装置的移动性测试结合周围骨的定量和定性标准化放射学检查似乎提供了对骨结合种植体纵向事件的更真实的理解。骨结合种植体的预后似乎很好，特别是在微生物耳、小的边缘骨高度变化和固定周围骨重塑的放射学指征方面。
-16 consecutive totally edentulous patients were provided with 95 osseointegrated titanium fixtures in 7 upper and 9 lower jaws. Facultatively removable bridges were later connected to abutments, attached to the fixtures. The marginal soft and hard tissue reactions were investigated at a baseline examination and after 6, 12, 21, 30 and 39 months by standardized clinical and radiographical methods. At the last examination, microbiological samples and gingival biopsies were also analysed. The % ratios of abutments without plaque, 70-75%, and without any gingivitis, 80-85%, were almost constant throughout the study. The mean probing depth was 2.9 mm at the final examination. About 75% of all probing depths were 3 mm or less and none exceeded 5 mm. The bridge-gingiva distances increased during the investigation. Attached gingiva surrounded 65% of the buccal and lingual abutment surfaces. Only 0.9 mm marginal bone was lost as a mean during the first year and not more than 0.05 mm annually for the next 2 years. After 6 months, no significant changes in marginal bone levels occurred. The perifixtural bone gradually became more radiopaque, especially marginally in upper jaws, indicating a successive load-related remodelling. The microbiotia comprised coccoid cells and non-motile rods to 93% in 32 samples. Healthy tissues were present in 35% of the 14 soft tissue biopsies. In a further 29%, only a slight inflammation was observed. No constant correlations could be established for any of the investigation parameters used. It is concluded that the marginal soft tissue reactions were mild and not significant for a progressive periodontitis. Mobility tests of separate fixtures combined with quantitative and qualitative standardized radiological examinations of the surrounding bone appear to provide a truer comprehension of longitudinal events at osseointegrated implants than conventional clinical soft tissue observations. The prognosis for the osseointegrated implants appears excellent, especially with regard to the microbiotia, the small marginal bone height changes, and the radiological indications of remodelling in the perifixtural bone.