Evaluation following functional loading of titanium fixtures placed in ridges augmented by deproteinized bone mineral. A human case study.
Evaluation following functional loading of titanium fixtures placed in ridges augmented by deproteinized bone mineral. A human case study.
复制标题
对放置在由脱蛋白骨矿物质增强的牙槽嵴中的钛固定物进行功能加载后进行评估。
DOI：
10.1034/j.1600-0501.2001.120512.x
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发表时间：
2001
影响因子：
4.3
通讯作者：
Niklaus P Lang
中科院分区：
文献类型：
--
作者：
Annika Skoglund;P. Hising;Rolf Attström;L. Mayfield;Niklaus P Lang
本研究的目的是临床评价钛固定装置的种植体周围组织，放置在使用脱蛋白骨矿物质增强的区域，在初始功能负载后。原始材料包括18名患者（平均年龄71 ± 9岁），使用移植材料、Bio-Oss（6名患者）或Bio-Oss+自体骨混合物（12名患者）进行牙槽嵴增高。在牙槽嵴增高时放置了6个钛固定装置。在第二个手术阶段放置了46个固定装置，平均在隆乳后9.5个月。隆乳术包括牙槽嵴宽度（26个固定装置）、牙槽嵴高度和宽度（12个固定装置）和上颌窦底提升术（14个固定装置）。此外，16个固定装置放置在骨量充足的区域。每年进行重建，并召回患者。功能负荷4-6.5年后，取出重建物，并评估固定装置稳定性和种植体周围粘膜状况。此时，3例患者（13例固定装置）失访（1例死亡，1例拒绝参加，1例因病无法参加）。在其余15例患者中，7个固定装置由于骨崩解而丢失，1例患者下颌骨丢失2个固定装置，另1例患者上颌骨丢失5个固定装置。两人都是吸烟者。其余32个固定装置在临床上稳定。种植体周围粘膜健康，平均改良龈沟出血指数为0.1+/-0.2，平均探诊深度为1.5+/-1.1 mm。影像学评估显示牙槽骨水平等于或高于第一个固定装置螺纹水平。固定物周围无射线可透性。在4-6.5年的功能负荷后，使用脱蛋白骨矿物质结合牙槽嵴增高放置固定装置的存活率（与成功率一致），非吸烟者为100%，吸烟者为43%。在非加固区域没有发生固定装置丢失。
The aim of this investigation was to clinically evaluate the periimplant tissues of titanium fixtures, placed in regions augmented using deproteinized bone mineral, after initial functional loading. The original material included 18 individuals (mean age 71+/-9 years) treated using a graft material, Bio-Oss (6 Patients), or Bio-Oss+autogenous bone mixture (12 patients) for alveolar ridge augmentation. 6 titanium fixtures were placed at the time of ridge augmentation. 46 fixtures were placed at a second surgical stage, median 9.5 months after augmentation. Augmentation included crest width (26 fixtures), crest height and width (12 fixtures) and sinus floor lift (14 fixtures) procedures. In addition, 16 fixtures were placed in regions of adequate bone volume. Reconstructions were placed and patients were recalled on a yearly basis. After 4-6.5 years of functional loading, the reconstructions were removed and assessments of fixture stability and periimplant mucosal conditions were made. At this time, 3 patients (13 fixtures) were lost to follow-up (1 deceased, 1 declined to participate, and 1 too ill to attend). In the remaining 15 patients, 7 fixtures were lost due to osseo-disintegration, 2 in one patient in the mandible, and 5 in a second patient in the maxilla. Both individuals were smokers. The remaining 32 fixtures were clinically stable. Periimplant mucosa was healthy with a mean modified sulcular bleeding index of 0.1+/-0.2 and a mean probing depth of 1.5+/-1.1 mm. Radiographic evaluation showed alveolar bone levels at or above the level of the first fixture thread. There were no perifixtural radiolucencies. The survival rate, which coincided with success rate, for fixtures placed in conjunction with ridge augmentation using deproteinized bone mineral was 100% for non-smokers and 43% for smokers after 4-6.5 years of functional loading. No fixture loss occurred in non-augmented areas.