브라켓과 탄선 간의 마찰 전후 표면 변화 분석 - 원자현미경을 이용한 예비연구
Changes in surface roughness of bracket and wire after experimental sliding - preliminary study using an atomic force microscopy
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
브라켓과 호선 간에 발생하는 마찰은 치아 이동의 효율에 상당한 영향을 미친다. 마찰력에 기여하는 요소 중 특히 브라켓과 호선의 표면조도는 중요한 요소이다. 본 연구는 브라켓과 탄선을 실험적으로 마찰시킨 후, 원자현미경(atomic force microscope, AFM)을 사용하여 브라켓 슬롯과 교정용 탄선의 표면 조도 변화를 정성적, 정량적으로 측정하고 비교 평가하여 브라켓과 호선 간의 마찰이 각각의 표면 변화에 미치는 영향을 규명하고자 시행되었다. 스테인리스 스틸 브라켓과 세라믹 브라켓에 각각 스테인리스 스틸 탄선과 TMA 탄선을 실험적으로 활주마찰시킨 후 각각을 원자현미경을 이용하여 표면을 관찰하였다. 실험결과 브라켓보다는 교정용 탄선에서 활주마찰 후에 더 많은 표면 변화가 나타났다. 또한 활주마찰 후에 스테인리스 스틸 브라켓은 표면 조도의 유의한 변화가 없었으나 세라믹 브라켓은 표면 조도가 감소하였다. 그리고 교정용 탄선은 모두 활주마찰 후에 표면 조도가 증가하였으며 이러한 표면 변화는 스테인리스 스틸 브라켓보다 세라믹 브라켓과의 활주마찰 후에 더 큰 것으로 관찰되었다. 본 실험으로 원자현미경은 브라켓 슬롯과 탄선의 표면 조도를 정량적으로 측정하는 데에 유용한 수단임을 알 수 있었다. (대치교정지 2010; 40(3):156-166)
Abstract
Objective: The surface roughness of orthodontic materials is an essential factor that determines the coefficient of friction and the effectiveness of tooth movement. The aim of this study is to evaluate the surface roughness change of the brackets and wires after experimental sliding quantitatively. Methods: Before and after experimental sliding tests, the surface roughness of stainless steel brackets, ceramic brackets, stainless steel wires, and beta-titanium (TMA) wires were investigated and compared using atomic force microscopy (AFM). Results: After sliding tests, changes in the surface of the wire were greater than changes in the bracket slot surface. The surface roughness of the stainless steel bracket was not significantly increased after sliding test, whereas the roughness of ceramic brackets was decreased. Both the surface roughness of stainless steel and TMA wires were increased after sliding test. More changes were observed on the ceramic bracket than the stainless steel bracket. Conclusions: AFM is a valuable research tool when analyzing the surface roughness of the brackets and wires quantitatively. (Korean J Orthod 2010;40(3):156-166)
참고문헌 (36)
- Frank CA, "comparative study of frictional resistances between orthodontic bracket and arch wire", Am J Orthod, 78, pp.593~609 (1980)
- Angolkar PV, "Evaluation of friction between ceramic brackets and orthodontic wires of four alloys", Am J Orthod Dentofacial Orthop, 98, pp.499~506 (1990)
- Kapur Wadhwa R, "Frictional resistance in ceramic and metal brackets", J Clin Orthod, 38, pp.35~8 (2004)
- Kapila S, "Evaluation of friction between edgewise stainless steel brackets and orthodontic wires of four alloys", Am J Orthod Dentofacial Orthop, 98, pp.117~26 (1990)
- Peterson L, "A comparison of friction resistance for Nitinol and stainless steel wire in edgewise brackets", Quintessence Int Dent Dig, 13, pp.563~71 (1982)
- Stannard JG, "Comparative friction of orthodontic wires under dry and wet conditions", Am J Orthod, 89, pp.485~91 (1986)
- Thorstenson GA, "Comparison of resistance to sliding between different self-ligating brackets with second-order angulation in the dry and saliva states", Am J Orthod Dentofacial Orthop, 121, pp.472~82 (2002)
- Kusy RP, "Assessment of second-order clearances between orthodontic archwires and bracket slots via the critical contact angle for binding", Angle Orthod, 69, pp.71~80 (1999)
- Sims AP, "A comparison of the forces required to produce tooth movement in vitro using two self-ligating brackets and a pre-adjusted bracket employing two types of ligation", Eur J Orthod, 15, pp.377~85 (1993)
- Dowling PA, "An investigation into the behavioural characteristics of orthodontic elastomeric modules", Br J Orthod, 25, pp.197~202 (1998)
- Ireland AJ, "Effect of bracket and wire composition on frictional forces", Eur J Orthod, 13, pp.322~8 (1991)
- Andreasen GF, "Evaluation of friction forces in the 0.022 × 0.028 edgewise bracket in vitro", J Biomech, 3, pp.151~60 (1970)
- Baker KL, "Frictional changes in force values caused by saliva substitution", Am J Orthod Dentofacial Orthop, 91, pp.316~20 (1987)
- Riley JL, "Frictional forces of ligated plastic and metal edgewise brackets", J Dent Res, 58, pp.A21~ (1979)
- Bourauel C, "Surface roughness of orthodontic wires via atomic force microscopy, laser specular reflectance, and profilometry", Eur J Orthod, 20, pp.79~92 (1998)
- Tanne K, "Frictional forces and surface topography of a new ceramic bracket", Am J Orthod Dentofacial Orthop, 106, pp.273~8 (1994)
- Saunders CR, "Surface topography and frictional characteristics of ceramic brackets", Am J Orthod Dentofacial Orthop, 106, pp.76~87 (1994)
- Pratten DH, "Frictional resistance of ceramic and stainless steel orthodontic brackets", Am J Orthod Dentofacial Orthop, 98, pp.398~403 (1990)
- Zinelis S, "Comparative assessment of the roughness, hardness, and wear resistance of aesthetic bracket materials", Dent Mater, 21, pp.890~4 (2005)
- Prososki RR, "Static frictional force and surface roughness of nickel-titanium arch wires", Am J Orthod Dentofacial Orthop, 100, pp.341~8 (1991)
- Kusy RP, "Surface roughness of orthodontic archwires via laser spectroscopy", Angle Orthod, 58, pp.33~45 (1988)
- Horton CB, "An evaluation of commercial pastes for finishing composite resin surfaces", J Presthet Dent, 37, pp.674~9 (1977)
- Roulet JF, "The surface roughness of restorative materials and dental tissues after polishing with prophylaxis and polishing pastes", J Periodontol, 53, pp.257~66 (1982)
- Cassinelli C, "Atomic force microscopy studies of the interaction of a dentin adhesive with tooth hard tissue", J Biomed Mater Res, 28, pp.1427~31 (1994)
- Marshall GW Jr, "Atomic force microscopy of acid effects on dentin", Dent Mater, 9, pp.265~8 (1993)
- Marshall GW Jr, "Atomic force microscopy of conditioning agents on dentin", J Biomed Mater Res, 29, pp.1381~7 (1995)
- Hansma PK, "Scanning tunneling microscopy and atomic microscopy: application to biology and technology", Science, 242, pp.209~16 (1988)
- Blanchard CR, "Atomic force microscopy", Chem Educator, 1, pp.1~8 (1996)
- Lal R, "Biological applications of atomic force microscopy", Am J Physiol, 266, pp.C1~21 (1994)
- Radmacher M, "From molecules to cells: imaging soft samples with the atomic force microscope", Science, 257, pp.1900~5 (1992)
- Ohnesorge F, "True atomic resolution by atomic force microscopy through repulsive and attractive forces", Science, 260, pp.1451~6 (1993)
- Drake B, "Imaging crystals, polymers, and processes in water with the atomic force microscopy", Science, 243, pp.1586~9 (1989)
- Kim HS, "A study on surface roughness of composite resins after finishing and polishing", J Korean Acad Prosthodont, 35, pp.719~41 (1997)
- "Kyung Hee University", 2009
- 제영지, "심미 브라켓의 종류와 브라켓-호선 각도에 따른 마찰 저항에 대한 연구", 대한치과교정학회지, 37(5), pp.341~350 (2007), 대한치과교정학회
- Matasa CG, "Biomaterials in orthodontics. In Orthodontics: current principles and techniques. 3rd ed", pp.331~2 (2000), Mosby