치면열구전색제의 산부식 시간과 접착제 유무에 따른 미세인장결합강도 평가 = Evaluation of Microtensile Bond Strength of Sealant Depending on the Duration of Etching and the Use of Bonding Agent

국문 초록 (Abstract)

본 연구의 목적은 산부식 시간과 접착제 적용에 따른 유구치 치면열구전색제의 미세인장 결합강도를 평가하여 비교하는 것이다. 40개의 발거된 건전한 하악 유구치를 선정하여 산부식을 시행하지 않은 군과 산부식을 각각 15, 30, 60초 시행한 군으로 분류하였다. 이를 다시 접착제를 적용하지 않은 군과 적용한 군으로 나누었다. 각 군의 치아에 치면열구 전색제를 도포하여 시편을 제작한 후 미세인장 결합강도를 측정하였다. 산부식을 시행한 15, 30, 60초에 따라 미세인장 결합강도는 유의한 차이가 없었다. 전색제를 적용하기 전에 접착제를 적용한 경우가 산부식만 시행한 경우보다 더 높은 결합강도를 보였으며(p < 0.05), 산부식 시간에 따른 유의한 차이는 없었다. 결론적으로, 유구치의 교합면 법랑질에서 산부식 시간이 15초 이상이면 전색제의 미세인장 결합강도는 유의하게 증가하지 않았으며, 치면열구전색제 도포 전에 접착제를 적용하는 것은 결합강도를 증가시켰다.

다국어 초록 (Multilingual Abstract)

The aim of this study was to evaluate the effect of etching time and bonding agents on bond strength of sealant applied to the occlusal surface of primary molars. Forty non-carious exfoliated human primary molars were included in the study. The teeth were randomly divided into 4 groups for measurement. For group I, no acid etching treatment was used. For group II, III, and IV, acid etching gels were applied on the occlusal surface for 15, 30, and 60 seconds, respectively. Each group was divided into 2 subgroups; one group was treated with bonding agents on the enamel while the other was not. Microtensile bond strength was evaluated using a universal testing machine. There were no statistically significant differences in bond strength with varying duration of etching among groups. The results revealed that the use of bonding agents prior to application of fissure sealant increased the bond strength(p < 0.05). It could be concluded that etching time greater than 15 seconds does not significantly enhance the bond strength, but the use of bonding agents as an intermediate layer between the primary molar and fissure sealant would be beneficial in increasing the bond strength.

참고문헌 (Reference)

1 조태식, "교합면 열구 법랑질의 미세구조 및 산부식 형태" 대한소아치과학회 32 (32): 321-331, 2005

2 Sirisha K, "Validity of bond strength tests: A critical review-Part II" 17 : 420-426, 2014

3 Hebling J, "Use of one-bottle adhesive as an intermediate bonding layer to reduce sealant microleakage on saliva-contaminated enamel" 13 : 187-191, 2000

4 Hitt JC, "Use of a bonding agent to reduce sealant sensitivity to moisture contamination: an in vitro study" 14 : 41-46, 1992

5 Gwinnett AJ, "The ultrastructure of the "prismless" enamel of permanent human teeth" 12 : 381-388, 1967

6 Pashely DH, "The microtensile bond test: a review" 1 : 299-309, 1999

7 Pashley DH, "The microtensile bond test: a review" 1 : 299-309, 1999

8 Tandon S, "The effect of etch-time on the bond strength of a sealant and on the etch-pattern in primary and permanent enamel: an evaluation" 56 : 186-190, 1989

9 Redford DA, "The effect of different etching times on the sealant bond strength, etch depth, and pattern in primary teeth" 8 : 11-15, 1986

10 Tulunoglu O, "The effect of bonding agents on the microleakage and bond strength of sealant in primary teeth" 26 : 436-441, 1999

11 Hosoya Y, "The effect of acid etching times on ground primary enamel" 15 : 188-194, 1991

12 안진선, "S-PRG 필러를 포함하는 치면열구전색제의 전단결합강도 및 미세누출" 대한소아치과학회 43 (43): 347-353, 2016

13 Feigal RJ, "Retaining sealant on salivary contaminated enamel" 124 : 88-97, 1993

14 Hosoya V, "Resin adhesion to the ground primary enamel: influence of etching times and thermal cycling test" 17 : 25-31, 1992

15 Sano H, "Relationship between surface area for adhesion and tensile bond strength-evaluation of a micro-tensile bond test" 10 : 236-240, 1994

16 Ahovuo-Saloranta A, "Pit and fissure sealants for preventing dental decay in the permanent teeth of children and adolescents" 3 : 2004

17 Newman HN, "Observation with scanning and transmission electron microscopy on the structure of human surface enamel" 19 : 1135-1143, 1974

18 Ramires-Romito AC, "Microtensile bond strength of sealant and adhesive systems applied to occlusal primary enamel" 20 : 114-120, 2007

19 Inoue S, "Microtensile bond strength of eleven comtemporary adhesives to enamel" 16 : 329-334, 2003

20 Powell PB, "Microleakage around a pit and fissure sealant" 44 : 298-301, 1977

21 Bozalis WG, "Mechanical pretreatment and etching of primary-tooth enamel" 46 : 43-49, 1979

22 Fuks AB, "Mechanical and acid treatment of the prismless layer of primary teeth vs acid etching only: A SEM study" 44 : 222-225, 1977

23 Feldens EG, "Invasive technique of pit and fissure sealants in primary molars: A SEM study" 18 : 187-190, 1994

24 구재원, "In Vitro Evaluation of Microleakage and Penetration of Hydrophilic Sealants Applied on Dry and Moist Enamel" 대한소아치과학회 44 (44): 272-279, 2017

25 Gwinnett AJ, "Human prismless enamel and its influence on sealant penetration" 18 : 441-444, 1973

26 American Academy of Pediatric Dentistry, "Evidence-based clinical practice guideline for the use of pit-and-fissure sealants" 38 : 263-279, 2016

27 Sen Tunc E, "Evaluation of microtensile bond strength of different fissure sealants to bovine enamel" 57 : 79-84, 2012

28 Dennison JB, "Evaluating tooth eruption on sealant efficacy" 121 : 610-614, 1990

29 Gwinnett AJ, "Effect of etching time and acid concentration on resin shear bond strength to primary tooth enamel" 5 : 237-239, 1992

30 Barkmeier WW, "Effect of enamel etching time on roughness and bond strength" 34 : 217-222, 2009

31 Faria-e-Silva AL, "Effect of acid etching time and technique on bond strength of an etch-andrinse adhesive" 24 : 75-80, 2011

32 Reis A, "Durability of resin dentin interfaces: effects of surface moisture and adhesive solvent component" 20 : 669-676, 2004

33 Castro LC, "Comparison of three different preparation methods in the improvement of sealant retention" 28 : 249-252, 2004

34 Heintze SD, "Clinical relevance of tests on bond strength, microleakage and marginal adaptation" 29 : 59-84, 2013

35 Swift EJ Jr, "Bonding to enamel and dentin: A brief history and state of the art, 1995" 26 : 95-110, 1995

36 Asselin ME, "Bond strength of a sealant to permanent enamel: Evaluation of 3 application protocols" 31 : 323-328, 2009

37 Lemos LV, "Bond strength and morphology of resin materials applied to the occlusal surface of primary molars" 22 : 435-441, 2012

38 Boksman L, "A 2-year clinical evaluation of two pit and fissure sealants placed with and without the use of a bonding agent" 24 : 131-133, 1993