Comparison of healed tissues adjacent to submerged and non-submerged unloaded titanium dental implants. A histometric study in beagle dogs.
Comparison of healed tissues adjacent to submerged and non-submerged unloaded titanium dental implants. A histometric study in beagle dogs.
复制标题
浸没式和非浸没式卸载钛牙种植体附近愈合组织的比较。
DOI：
10.1034/j.1600-0501.1996.070102.x
复制
发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Williams,RC
中科院分区：
文献类型：
--
作者：
Weber,HP;Buser,D;Donath,K;Fiorellini,JP;Doppalapudi,V;Paquette,DW;Williams,RC
本研究涉及比格犬的埋植和非埋植牙种植体周围愈合组织的组织学测量。在裂口设计中，将19个埋入式和19个非埋入式商业纯钛种植体（骨锚定部分采用等离子喷涂钛，透粘膜部分采用光滑钛）放置在6只犬的下颌骨中。每周进行3次口腔卫生。愈合3个月后，将经粘膜基台插入埋入式种植体中。第二阶段手术后6周，处死犬，获取标本并进行组织学和组织学测量。使用光学显微镜和数字化垫，从种植体顶部到粘膜边缘的距离（DIM），上皮向下生长的程度（艾德），附着水平（AL）。测量近中和远中方向的结缔组织接触长度（CTC）和第一个冠状牙槽骨接触到种植体顶部的距离（DIB）。以犬为测量单位，计算埋植和非埋植植入物的平均值+标准差。在DIM、CTC和DIB方面，埋植型和非埋植型种植体之间没有统计学显著差异。然而，观察到艾德和AL存在显著差异。这项在比格犬中进行的研究表明，与非浸没式一期种植体相比，第二阶段透粘膜基台的浸没式种植体附近的种植体上皮的顶端延伸明显更大，附着水平明显更低。
This study involved histometry of the healed tissues around submerged and nonsubmerged dental implants in beagle dogs. In a split‐mouth design, 19 submerged and 19 nonsubmerged commercially pure titanium implants, titanium plasma‐sprayed in the bone anchoring part and smooth in the transmucosal portion were placed in the mandibles of 6 dogs. Oral hygiene was performed 3 times weekly. After 3 months of healing, transmucosal abutments were inserted in the submerged implants. Six weeks after second stage surgery, the dogs were sacrificed and specimens obtained and processed for histology and histometry. Using a light microscope and a digitizing pad, the distance from implant top to mucosa border (DIM), the extent of epithelial downgrowth (ED), the attachment level (AL). the length of connective tissue contact (CTC) and the distance of the first coronal alveolar bone contact from the implant top (DIB) were measured at the mesial and distal aspects. Means+standard deviations for submerged and nonsubmerged implants were calculated, with the dog being the unit of measure. No statistically significant differences between submerged and nonsubmerged implants here found for DIM, CTC and DIB. However, significant differences were observed for ED and AL. This study in beagle dogs indicates that the apical extension of the peri‐implant epithelium is significantly greater and the attachment level significantly lower adjacent to submerged implants with second‐stage transmucosal abutments than in nonsubmerged, one‐stage implants.