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題 名 | Connecting Rigidities of Various Precision Attachments Compared with the Conical Crown Retained Telescope=精密附連體與錐形冠套疊式義齒連結強度的評估與比較 |
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作 者 | 王兆祥; 李惠娥; 杜哲光; 五十嵐順正; | 書刊名 | The Kaohsiung Journal of Medical Sciences |
卷 期 | 21:1 民94.01 |
頁 次 | 頁22-28 |
分類號 | 416.964 |
關鍵詞 | 連結強度; 精密附連體; 錐形冠套疊式義齒; 遠心端游離局部活動義齒; Connecting rigidity; Precision attachment; Conical crown telescope; Distal extension removable partial denture; |
語 文 | 英文(English) |
中文摘要 | 本研究是觀察數種強固支持的精密附連體的連結強度,並和錐形冠套疊式義齒來比較。結果顯示各組之間雖然存在有許多統計意義差別,然而垂直施力時近心及遠心的位移都很小 (近心小於 3.0 micrometers,遠心小於 21.4 micrometers)。水平施力時近心及遠心的位移都各組都很接近,只有dovetail slide beyeler卻是很大差距,近心的位移為 44.5 micrometers(其他組皆小於 16.5 micrometers),遠心的位移高達 75.0 micrometers(其他組皆小於 31.2 micrometers)。可見得要用 dovetail slide beyeler 這一類的精密附連體來替代錐形冠套疊式義齒時,在垂直上雖然沒有問題,在水平方向卻是弱點,必須增設抱持臂(bracing arm)來抵抗水平所造成的變位。 |
英文摘要 | The purpose of this investigation was to observe the connecting rigidity of various precision attachments and to compare their connecting rigidities with the conical crown retained telescope (CCT). The connecting rigidity of a retainer was assessed using the flexibility test to measure the mesial and distal end displacements. Four precision attachments were analyzed: the dovetail slide attachment beyeler, cylindrical slide attachment, Spang Stabilex and Mini SG. The CCT was used as the control. Although there were many statistically significant differences between the displacements with the various attachments, displacements when vertically loaded were very small: all mesial end displacements were within 3 micrometers and distal end displacements were 21.4 micrometers. The largest of the mesial end displacements when horizontally loaded was as large as 44.5 micrometers (dovetail slide beyeler), while the others were all below 16.5 micrometers. The same phenomena occurred with the distal end displacements when horizontally loaded: the largest was seen with the dovetail slide beyeler, followed sequentially by the Spang Stabilex, CCT, cylindrical slide, and the Mini SG. The distal displacement with the dovetail slide beyeler was as large as 75.2 micrometers; those with the others were all below 31.2 micrometers, with numerous statistically significant differences between the displacements with the various attachments. Thus, connecting rigidities of rigid precision attachments are very similar to CCT, and only the dovetail slide beyeler attachment is too weak to resist horizontal displacement force. |
本系統中英文摘要資訊取自各篇刊載內容。