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題 名 | 以纖維強化修補壓克力樹脂暫用固定局部義齒之斷裂負荷=Fracture Load of Fiber-Reinforced Repaired Acrylic Resin Provisional Fixed Partial Denture |
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作 者 | 吳育琦; 王震乾; 羅秋萍; 洪純正; | 書刊名 | 臺灣口腔醫學衛生科學雜誌 |
卷 期 | 21:2 民94.10 |
頁 次 | 頁75-84 |
分類號 | 416.9491 |
關鍵詞 | 纖維; 壓克力樹脂; 修補; Fiber; Acrylic resin; Repair; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究旨在評估利用各式纖維強化物修補後,壓克力暫用贗復體的折斷負荷與斷裂形式,並探討纖維種類、表面處理方式與樣本折斷強度、斷裂形式之相互關係。本實驗共製作60個標準化壓克力樹脂後牙區四單位牙橋樣本。10 個完整標準樣本作為正向控制組,其餘 50 個標準標準於兩橋體問切斷後均分成五組實驗組,樣本分別以光照過及未光照過之玻璃纖維 (Glass fiber, FiberKor) 與聚乙烯纖維 (Polyethylene fiber, Construct, Connect) 強化並修復。利用萬能材料試驗機測試樣本折斷負荷,和記錄樣本斷裂形式,並利用掃描式電子顯微鏡觀察斷面。結果以 one-way ANOVA 分析顯示經玻璃纖維及聚乙烯纖維強化組別的斷折負荷統計上顯著高於利用樹脂修復的組別 (P<0.05)。在纖維強化組別以 Tukey method 事後檢定發現,光照過玻璃纖維及矽皖處理過的聚乙烯纖維強化效果最佳,其斷裂強度與完整樣本無統計上的差異 (P>0.05)。斷裂形式方面,經纖維強化過的樣本其斷裂形式大多為部分斷裂。本研究顯示各式纖維強化物修補後,壓克力暫用贗復體的折斷負荷有明顯增加,而纖維的表面處理方式是影響強化效果的主要因素。 |
英文摘要 | The purpose of this study was to evaluate the fracture load and fracture pattern of repaired acrylic resin provisional restoration, which had been reinforced with various fibers. It also aimed to investigate the relationships between type/surface treatment of fibers and fracture pattern/fracture strength of samples. In the experiment, first, 60 standardized 4-unit bridge samples n=60 over mandibular posterior region were fabricated with PMMA resin. Next, they were divided into 6 groups evenly. Besides 10 intact samples as control group, other 50 samples were repaired with resin or glass fiber with or without light curing/polyethylene fibers (with or without silane treatment). The fracture load of samples were tested with an universal testing machine and fracture pattern of all specimens were recorded. The fracture surfaces of selective samples were observed under SEM. All data were statistically analyzed using one-way ANOVA and Tukey's pairwise comparison test. The results indicated the fracture load of glass/polyethylene fiber-reinforced groups were statistically significant higher than acrylic resin repaired group (P<0.05). However, there is no statistical difference between fiber-reinforced groups and intact sample groups. As for fracture pattern, most of all samples are display "partial" fracture. The results of present study showed acrylic resin FPD reinforced with glass or polyethylene fibers do exhibit higher fracture loads as compared to samples without reinforcement. The way of surface treatment to fibers seems to be a dominate factor influence the fracture load of a long-span repaired provisional FPD. |
本系統中英文摘要資訊取自各篇刊載內容。