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題名 | 比較7T形狀記憶植體以單獨牙冠與連結自然齒牙橋贈復之臨床及組織病理之反應= |
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作者 | 郭英雄; 郭生興; 王拯宗; 洪志遠; 陳信銘; 何擇榮; 黃振勳; 林思洸; 吳鴻宜; 姚力文; 盧政賢; 呂輝雄; |
期刊 | 中華民國口腔顎面外科學會雜誌 |
出版日期 | 19950300 |
卷期 | 6:1 1995.03[民84.03] |
頁次 | 頁1-8 |
分類號 | 416.964 |
語文 | chi |
關鍵詞 | 形狀記憶植體; 單獨牙冠; 牙橋; Shape memory implant; Free-standing crown; Bridge; |
中文摘要 | 7 T形狀記憶植體各一支種植於台灣獼猴之兩側下顎第二大白齒之缺牙處,一個側以單獨牙冠,另一側與鄰近第二小臼齒連結形成牙橋贗復,觀察十六個月,臨床上發現單獨牙冠有2~3級動搖度,齒糟骨被吸收2mm,而牙橋則呈0-2級動搖度,齒槽骨被吸收1-2mm。組織病理學上顯示兩者植體介面均有一層軟組織,1級動搖度標本之厚度介於15~50μm,介面上有多處組織細胞浸潤伴隨非常輕微之慢性發炎,而2-3級動搖度標本之厚度介於50-200μm,有中度急性及慢性炎症,介面上亦有局部組織細胞浸潤。 |
英文摘要 | One 7T shape memory implant was inserted into the edentulous ridge of the molar region on each side of the mandible in Taiwanese monkeys (Macaca cyclopis). On one side it was restored with a free-standing crown and on the other side the implant abutment was connected to the second premolar by a bridge. After 16 months, clinically the crowned implants had grade 2 to 3 mobility and 2 mm bone loss was noted around them. On the other hand, the bridged implants had grade 0 to 2 mobility and 1 to 2 mm alveolar bone resorption was found. Histologically the implants in both groups were surrounded by fibrous tissue. The fibrous tissue around implants with grade 1 mobility was 15 to 50μm in thickness and multiple areas of histiocyte infiltration were noted at the interface, with only mild chronic inflammatory reaction. The fibrous tissue was 50 to 200μm thick around implants with grade 2 to 3 mobility. Moderate acute and chronic inflammations were found with focal areas of histiocyte infiltration at the interface. |
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