4つのセラミック仕上げシステムの効率性を比較評価する

Comparative evaluation of the efficiency of four ceramic finishing systems.

抄録

目的:

準備した試験片の研磨、仕上げ、琢磨後のセラミック表面の粗さを評価する目的で、4種類の仕上げシステムとダイヤモンドペーストがセラミックの粗さに及ぼす影響を比較する。

AIM: To compare the effect of four different finishing systems and diamond paste on ceramic roughness with the objectives of evaluating the roughness of ceramic surface of prepared specimens after abrasion, finishing and polishing.

直径13mm，厚さ0.6mmの円板状の試験片を合計50枚作製した。次に，試験片を10枚ずつ5つのグループに無作為に振り分け，コード化した。次に，すべての試験片を125μmのダイヤモンドで一方向に研磨し，咬合または切歯矯正を模擬した表面粗さを作り出した．その値を記録し，さまざまな仕上げシステムを用いて試験片を仕上げた．ダンカンの手順で多重範囲試験を行った．結果：仕上げ加工後，Ra，Rq，RzおよびRtの値は，試料作製後に得られた値よりはるかに劣るレベルまで低下する傾向を示した．RaはIII群の方がやや高く，その増加も顕著であった。研磨後に得られた最も高いRt値［5.29］は，仕上げ加工後に得られた最も低い粗さ値［7.42］を下回っている。

MATERIALS & METHODS: A total of 50 test specimens were fabricated in the form of discs of diameter 13mm and 0.6mm thickness. Test specimens were then randomly distributed into five groups of 10 and coded. All the test specimens were then abraded with 125μm diamond in unidirectional motion to create surface roughness that will simulate occlusal or incisal correction. The values were recorded and the specimens were then finished using the various finishing systems. multiple range tests by Duncan's procedure. One way Anova was used to calculate the p-value Results:After fini shing, the Ra,Rq,Rz and Rt values showed a tendency to decline to levels much inferior to the values obtained after the preparation of the specimens. Ra values of group III specimens were slightly higher and the increase was significant. The highest Rt value [5.29] obtained after polishing is below the lowest roughness values [7.42] obtained after finishing the specimens.

結論:

Ra，Rq，RzおよびRtの値は，試験したすべてのシステムの中でソフレックスが最も効率的であり，オートグレーズがこれに続くことを示唆している．この記事の引用方法Aravind P, Razak PA, Francis PG, Issac JK, Shanoj RP, Sasikumar TP.4つのセラミックス仕上げシステムの効率性の比較評価。J Int Oral Health 2013; 5(5):59-64.

CONCLUSIONS: Finishing and polishing procedures have a significant role in reducing the roughness of ceramics.Following abrasion with diamond point to simulate clinical adjustment the roughness values doubled when compared to the initial reading.Ra, Rq,Rz and Rt values suggest that Sof lex is the most efficient of all the systems tested followed by auto glazing.After the final diamond paste polishing, sof lex group specimens showed the best finish and auto glazed specimens showed a value almost as equal to the so flex group. How to cite this article: Aravind P, Razak PA, Francis PG, Issac JK, Shanoj RP, Sasikumar TP. Comparative Evaluation of the Efficiency of Four Ceramics Finishing Systems. J Int Oral Health 2013; 5(5):59-64.