산성 불소가 복합레진 표면에 미치는 영향
Effect of acidulated phosphate fluoride on the surface of composite resin
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복합레진 수복은 치아우식 및 치아우식 예방치료를 위한 대표적인 술식으로 소아치과 영역에서 널리 시행되고 있으며 불소도포는 치아우식 예방을 위한 대표적인 술식으로 1년에 2번 정도 실시되고 있다. 하지만 이러한 이점에도 불구하고 Acidulated phosphate fluoride(APF)가 복합 레진의 표면을 거칠게 한다는 부작용에 대한 논란이 있다. 이에 본 연구에서는 불소도포가 복합레진의 표면에 미치는 영향을 평가하기 위해 시판용 레진인 Solitaire 2. (Heraeus Kulzer, Germany), Metafil CX.(Sun medical, Japan), Composan LCM.(Promedica, Germany), Charmseal.(DenKist, Korea)을 이용하여 시편을 제작하고, 불소젤은 Topex.(Sultan Dental Products, Canada)를 각각 1분과 4분동안 도포시킨 후 변화를 관찰하여 다음과 같은 결과를 얻었다. 1. 불소젤을 도포시키지 않은 대조군에서 가장 평활한 표면을 보였으며 1분군, 4분군 순으로 표면 거칠기가 증가하였다. 그리고 Composan LCM.을 제외한 모든 제품에서 유의한 차이를 보였다(p<0.05). 2. 국소도포용 불소젤을 도포한 각 레진 시편의 무게 차이를 비교한 결과 대조군, 1분군, 4분군 간에 유의한 차이는 없었다(p>0.05). 3. 주사전자현미경 관찰시 불소젤을 도포시킨 실험군은 대조군에 비해 거친 표면을 나타내었다.
Abstract
Composite resin restorations are widely used to restore decayed teeth or preventive restoration in children. Children often receive topical fluoride treatments on a semiannual basis. However there is concern that topical acidulated phosphate fluorides (APF) may cause deterioration of composite resins. The aim of this study was to evaluate the surface changes in composite resins due to topical fluoride application. Composite resins(Solitaire 2., Metafil CX., Composan LCM., Charmseal.) in topical fluoride agents were immersed and their surface roughness, weight loss and SEM findings were evaluated. The results were as follows : 1. The 4 minutes-immersion group showed more roughened surface than 1 minute-immersion group and the control group showed the smoothest surface among all the materials, and there was statistically significant difference between the groups except the Composan LCM.(P<0.05). 2. There was no significant difference between the 1 minute-immersion group and 4 minutes-immersion group in weight loss(P>0.05). 3. The experimental group treated with topical fluoride gel showed generally more roughened surface than control group in the SEM findings.
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