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題 名 | 傳統可見光與氬雷射光聚合複合樹脂的後膠聚合收縮的比較=Comparison of Post-Gel Polymerization Shrinkage of Composite Resin Cured by Conventional Visible Light and Argon Laser |
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作 者 | 張淑芳; 林俊彬; 藍萬烘; 謝季全; | 書刊名 | 中華醫學工程學刊 |
卷 期 | 18:4 1998.12[民87.12] |
頁 次 | 頁209-214 |
分類號 | 416.98 |
關鍵詞 | 後膠聚合收縮; 複合樹脂; 氬雷射; 應變計法; Post-gel polymerization shrinkage; Composite resin; Argon laser; Strain gauge method; |
語 文 | 中文(Chinese) |
中文摘要 | 臨床上,複合樹脂的後膠聚合收縮會導致術後敏感及齒頸部牙釉質微裂的現象。 就材料學的觀點來看,後膠聚合收縮確實是影響複合樹脂補綴物的壽命的重要因素。由於雷 射光具單一性、是同質性高的平行光、光度純化且強度高,是良好的樹脂聚合光源。根據文 獻指出,以氬雷射光聚合複合樹脂具有加強樹脂的物理性質、加深聚合深度及縮短聚合時間 等好處;但是現有的文獻並無氬雷射光聚合複合樹脂的後膠聚合收縮的相關研究。因此,本 研究的目的在比較可見光和氬雷射光照射複合樹脂時的收縮行為、後膠聚合收縮的變化量及 其理想的聚合時間。選用臨床上常用的複合樹脂 Z100,厚 1 釐米,以可見光照射 60 秒及 1.5 瓦氬雷射光離焦 1 公分照射 30 秒, 使用應變計法來觀察、量度複合樹脂在聚合時的 後膠聚合收縮行為和收縮的變化量,由應變資料擷取系統分析。由研究結果可歸納出下列幾 點結論:(1) 可見光和氬雷射光照射複合樹脂時的收縮行為有顯的不同;(2) 以臨床常用的 可見光機聚合複合樹脂的理想時間至少是 44 秒, 而以 1.5 瓦氬雷射光照射的理想時間至 少是 8 秒; (3) 氬雷射光聚合複合樹脂所得到的後膠聚合總收縮量,不管是第一次或是第 二次收縮,都比可見光為多。因此在臨床上要以氬雷射光來聚合複合樹脂仍需進一步的探討 。 |
英文摘要 | The clinical significance of polymerization shrinkage in a resin restoration is the potential defects in the composite- tooth bond. This leads to bond failure and enamel microleakage with possible post-operative sensitivity. The argon laser (λ =488-514 nm) emits a blue-green light which is coherent, monochromatic and collimated. It has been shown that enhanced physical properties of composite resins could be obtained following argon laser application when compared to conventional visible light curing. The specific aims of this study were to compare the shrinkage behaviors of composite resin cured by the conventional visible light and argon laser with the use of the strain gauge methods, and further to investigate the adequate exposure time for polymerizing composite resins by the argon laser. From the results of this study, the following conclusions can be drawn:(1) The composite polymerization profile of argon laser curing is quite different from that of conventional light curing.(2) The optimal curing time for conventional visible light and argon laser is 44 seconds and 8 seconds, respectively. (3) The argon laser illustrates fast curing rate and more final shrinkage than the conventional visible light. Whether the argon laser is an ideal light source for composite resin curing requires further investigation. |
本系統中英文摘要資訊取自各篇刊載內容。