수종 복합레진에 대한 치태 부착도 비교 = PLAQUE ADHESION ON THE SURFACES OF VARIOUS COMPOSITE RESIN

국문 초록 (Abstract)

본 연구는 복합레진에서 치태 생성에 영향을 주는 표면 거칠기 및 표면 자유에너지를 나타내는 물방울 접촉각을 측정하고, 치태 부착실험을 통해 두 가지 요소가 미치는 영향에 대하여 평가할 목적으로 시행되었다. 4종의 복합레진(Z-100, Filtek supreme, Durafil, Clearfil AP X)을 비연마군과 연마군으로 각각 5개씩 시편을 제작하였다. 표면 거칠기는 표면조도형상측정기를, 접촉각은 접촉각측정기를 이용하여 각각 측정하였다. 치태부착 실험은, 시편을 배양액에 넣고 Streptococcus mutans Ingbritt을 접종하여 부착된 치태의 양을 측정하여 평가하였다.
1. 표면조도는 연마되지 않은 대조군에서는 (Z1, DF, CA)＞FS의 순, 연마된 실험군에서는 CA＞Z1＞(FS, DF) 의 순으로 나타났으며, 실험군이 대조군에 비해 높은 표면 조도를 보였다(p＜0.05).
2. 접촉각은 대조군에서는 CA＞(FS, DF, Z1) 의 순, 실험군에서는 (CA, DF)＞(FS, Z1)의 순으로 나타났으며, 실험군이 대조군에 비해 낮은 접촉각을 보였다(p＜0.05).
3. 치태침착은 대조군에서는 Z1＞(DF, FS)＞CA 의 순, 실험군에서는 Z1＞FS＞(CA, DF)의 순으로 나타났으며, 실험군이 대조군에 비해 치태 침착이 더 많았다(p＜0.05).
4. 치태 부착도에 대해서 표면 조도는 상관성이 없고, 접촉각은 강한 반비례 관계를 보였다(p＜0.05). 즉 치태 부착에 대해 접촉각이 표면 조도 보다 더 큰 관련성을 보였다.

다국어 초록 (Multilingual Abstract)

The surface characteristics of restoration such as surface roughness and droplet contact angle are important part for the process of bacterial adhesion. The purpose of this study is to compare plaque adhesion by measuring roughness, droplet contact angle, and amount of accumulated plaque on the surfaces of composite resins.
Four kinds of composite resins, Z-100(Z1), Durafil(DF), Filtek supreme(FS), Clearfil AP X(CA) were used. Ten samples were divided into unpolished and polished group. Surface roughnesses and droplet contact angles were measured by profilometer and goniometer. Plaque weight gains are measured.
The results were as follows:
1. The experimental group were rougher than the control group. Surface roughnesses were decreased in the following order; (Z1, DF, CA)＞FS in the control group, and CA＞Z1＞(FS, DF) in the experimental group(P＜0.05).
2. The control group showed larger contact angle than the experimental group. Contact angles were decreased in the following order; CA＞(FS, DF, Z1) in the control group, and (CA, DF)＞(FS, Z1) in the experimental group(P＜0.05).
3. The experimental group showed more much plaque than the control group. The amounts of plaque accumulation in vitro were decreased in the following order; Z1(DF, FS)＞CA in the control group, and Z1＞FS＞(CA, DF) in the experimental group. The latter showed more much plaque than the former(P＜0.05).
4. There were stronger correlation between plaque deposition and contact angle (P＜0.05) than that of plaque deposition and surface roughness.

참고문헌 (Reference)

1 "유동성 복합레진의 마모저항성에 관한 연구" 29 : 217-225, 2002

2 "복합레진의 광택 및 표면조도에 관한 연구" 15 : 67-79, 1990

3 "The surface finish of composite resin restorative materials" 157 : 360-364, 1984

4 "The influence of titanium abutments surface roughness on plaque accumulation and gingivitis:short-term observations" 11 : 169-178, 1996

5 "The influence of surface free energy and surface roughness on early plaque formation,an in vivo study in man" 17 : 138-144, 1990

6 "Surface-free energy and bacterial adhesion.An in vitro study in beagle dogs" 14 : 300-304, 1987

7 "Surface thermodynamics of bacterial adhesion" 46 : 90-97, 1983

8 "Surface roughness and droplet contact angle measurement of various orthodontic bonding cements" 20 : 297-305, 1993

9 "Retention of streptococci to defined solid surfaces in the presence of saliva secretions" 100 : 98-103, 1992

10 "Restoraive treatment pattern and longevity of resin restoration in Denmark" 44 : 351-356, 1986

11 "Plaque accumulation on composite surfaces after finishing procedures" 91 : 101-106, 1975

12 "Physiochemical requirements for rapid remineraliation of early carious lesions" 15 : 221-235, 1981

13 "Physical properties and finished surface texture of composite restorative resins" 85 : 101-108, 1972

14 "Microbial growth on the surfaces of various orthodontic bonding cements" 21 : 125-132, 1994

15 "Measurements of the surface free energy of bacterial cell surfaces and its relevance for adhesion" 48 : 980-983, 1984

16 "Influence of surface energy on the development of the green alga Enteromorpha" 5 : 251-254, 1984

17 "Has dentistry moved into the nanotechnology era?" Compend 24 : 380-382, 2003

18 "Gingival response to class V composite resin restorations" 106 : 482-484, 1983

19 "Finishing composite restorative materials" 17 : 79-87, 1990

20 "Evaluation of finishing techniques for assessing surface roughmess of amalgam restorations" 57 : 286-292, 1987

21 "Controversial aspects of composite resin restorative materials" 155 : 380-385, 1983

22 "Caries incidence and oral hgiene during orthodonic treatment" 79 : 394-401, 1971

23 "Bacteriology of human experimental gingivitis-Effect of plaque age" 21 : 821-829, 1978

24 "An in vitro method for assessing the plaque forming ability of bacteria" 12 : 1633-, 1967

25 "Adhesion of Streptococcus sanguis CH3 to polymers with different surface free energies" 49 : 1270-1275, 1985

26 "A classification of dental composites according to their morphological and mechanical characteristics" 8 : 310-319, 1992

27 "A classification and evaluation of composite resin system" 50 : 480-488, 1983