원자현미경을 이용한 세라믹 브라켓 슬롯의 표면조도에 대한 연구

국문 초록 (Abstract)

교정용 브라켓과 강선 사이의 마찰저항력에 영향을 미치는 요소들 중 브라켓 슬롯의 표면조도에 대한 연구가 그동안 많이 시행되어 왔는데 기존 연구는 주로 주사전자현미경(SEM)이나 Prophylometer를 사용하여 이루어졌다. 이 연구는 원자현미경(AFM)을 사용하여 다섯 종류의 브라켓 슬롯의 표면조도를 정량적으로 측정하여 세라믹 브라켓이 스테인리스 스틸 브라켓보다 더 거칠고 다결정 알루미나 브라켓이 단결정 알루미나 브라켓보다 더 거친지 규명하는데 목적이 있다. 대조군인 스테인리스 스틸 브라켓(Succes^ⓡ)과 두 종류의 단결정 알루미나(Inspire Ice^ⓡ, Perfect^ⓡ)와 두 종류의 다결정 알루미나(Crystalline V^ⓡ, Invu^ⓡ)를 슬라이드 글라스에 접착하고 슬롯을 노출시키기 위해 치과용 하이스피드 핸드피스와 샴퍼버를 이용해 윙을 연마하였다. 원자현미경 이미지는 Nanostation II^TM를 사용하여 관찰하였다. Sa, Sq, Sz 모두 Invu^ⓡ와 Inspire Ice^ⓡ는 대조군인 Succes^ⓡ와 유의미한 차이가 없었으며 Perfect^ⓡ와 Crystalline V^ⓡ는 Succes^ⓡ보다 컸다. Perfect^ⓡ와 Crystalline V^ⓡ 사이에서는 Sa, Sq, Sz 모두 유의미한 차이가 없었으며 Invu^ⓡ와 Inspire Ice^ⓡ 사이에서도 Sa, Sq, Sz 모두 유의미한 차이가 없었다. 따라서, 대조군인 Succes^ⓡ와 단결정 브라켓인 Inspire Ice^ⓡ, 다결정 브라켓인 Invu^ⓡ가 낮은 조도의 슬롯 표면을 가지고 다결정 브라켓인 Crystalline V^ⓡ와 단결정 브라켓인 Perfect^ⓡ가 거친 슬롯 표면을 가진 것으로 판단된다. 따라서, 유사한 재질의 브라켓이라도 제조사에 따라 다양한 슬롯 표면조도를 나타낸다고 할 수 있다. (대치교정지 2010;40(5):294-303)

다국어 초록 (Multilingual Abstract)

Objective: This study was designed to measure the surface roughness at the slot floor of various ceramic brackets. Methods: One kind of stainless steel bracket (Succes^ⓡ), two kinds of monocrystalline brackets (Inspire Ice^ⓡ, Perfect^ⓡ) and two kinds of polycrystalline brackets (Crystalline V^ⓡ, Invu^ⓡ) were examined. Atomic force microscopy (AFM) was used to measure the surface roughness of each bracket. Data acquisition and processing were performed using SPIP^TM. Results: The differences in values of Sa, Sq, and Sz in Invu^ⓡ and Inspire Ice^ⓡ were not statistically different from the control group Succes^ⓡ. The values of Sa, Sq, and Sz of Perfect^ⓡ and Crystalline V^ⓡ were greater than those of Succes^ⓡ. Differences of all the Sa, Sq, and Sz values between Perfect^ⓡ and Crystalline V^ⓡ were not statistically significant. Conclusions: It is concluded that the slot surfaces of Succes^ⓡ, Inspire Ice^ⓡ, and Invu^ⓡ were smooth compared to those of Crystalline V^ⓡ and Perfect^ⓡ. (Korean J Orthod 2010;40(5):294-303)

목차 (Table of Contents)

• 서론
• 연구방법
• 연구성적
• 고찰
• 결론
• 참고문헌

참고문헌 (Reference)

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