1 資料和方法

1.1 病例資料

患者，女性，51 歲，陜西西安人，因雙側下頜后牙缺失3 年，來我院要求修復治療。患者無吸煙、酗酒史。全身健康狀況良好，否認有高血壓、心臟病等系統(tǒng)性疾病，否認有乙肝、艾滋病等傳染性疾病，無藥物過敏史。患者自述“5 年前兩側下后牙因嚴重齲壞于外院拔除，曾于外院行活動義齒修復2 次，均半年內折斷。最近一次活動義齒損壞至今1 年時間內，未對缺失牙進行修復。以往修復過程中曾因缺牙區(qū)對頜牙伸長，對右側上后牙進行調磨，右側上后牙進食過冷過熱食物有不適感”。臨床檢查：37 牙缺失，鄰缺隙牙無傾斜、無扭轉，對

2.金融轉換效率指標。一個地區(qū)儲蓄轉換為貸款的比率越高，反映該地區(qū)金融機構在提供金融服務、日常經營以及金融體系中資金配置的效率越高。本研究用縣域金融機構貸款總額占存款總額的比值（SLR）表示廣西縣域金融轉換效率指標。

1.2 治療計劃

治療計劃：可摘局部義齒修復缺失牙。

甲基蓮心堿與荷葉堿作用HepG2細胞對其上清液中LDH、TGF-β1、VEGF 的比較…………………………………… 李 娜，宋金春（2·89）

1.3 治療過程

1.3.1 初模型分析與支架設計 取初模型，利用導線觀測儀進行分析，進行義齒初步設計，完成義齒設計圖（圖3）。

1.3.2 基牙預備與精細印模 依據義齒就位道方向制備備牙導板，并利用備牙導板進行基牙預備，消除基牙過大倒凹，制備導平面及支托窩。并用個別托盤與流動性更好的聚醚橡膠，兩步法制取精細印模（圖4）。

1.3.4 功能性印模 1 周后復診，支架調改，口內試戴合適后，用光敏樹脂在支架上制作缺牙區(qū)局部個別托盤，并進行邊緣整塑，利用聚醚橡膠制取功能性印模后，進行模型切割、圍模灌注及模型修整。重新上架后，送交技工室（圖6）。

1.3.5 義齒完成與試戴 義齒初戴時，首先對義齒組織面、基托邊緣進行調磨。義齒完全就位后，用咬合紙輔助進行咬合調改。T-scan 檢測調改后患者口內咬合狀態(tài)（圖7）。

2 結 果

3 討 論

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】 Luo JT, Wang YM collected, analyzed the data and revised the article. Sun GY, Qin T analyzed the data and re-vised the article. Wu GF designed the study and revised the article. Ba RK designed the study and wrote the article. All authors read and ap-proved the final manuscript as submitted.

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