使用不同粘合剂/牙釉质调节剂将正畸托槽粘结到瓷质上的比较研究。

Bonding orthodontic brackets to porcelain using different adhesives/enamel conditioners: a comparative study.

作者信息

Bishara Samir E, Ajlouni Raed, Oonsombat Charuphan, Laffoon John

机构信息

Department of Orthodontics, College of Dentistry, University of Iowa, 220 Dental Science S, Iowa City, IA 52242-1001, USA

出版信息

World J Orthod. 2005 Spring;6(1):17-24.

PMID:15794038

Abstract

AIM

To evaluate the use of new adhesive/primer materials, including an experimental self-etch primer and a cyanocrylate adhesive, to enhance the shear strength of orthodontic brackets bonded to porcelain surfaces.

MATERIAL AND METHODS

Sixty porcelain maxillary central incisor teeth were used. The teeth were randomly divided into four groups: group 1, teeth were etched with 37% phosphoric acid and the brackets were bonded with a composite adhesive; group 2, teeth were microetched, hydrofluoric acid and silane applied, and then the brackets were bonded with a composite adhesive; group 3, an acid-etch primer was used, then the brackets were bonded with the same composite adhesive as in the first 2 groups; group 4, teeth were etched with 35% phosphoric acid and the brackets were bonded with the cyanoacrylate adhesive.

RESULTS

The analysis of variance comparing the groups tested (F = 9.446) indicated that there was a significant difference between the 4 groups. The cyanoacrylate adhesive had the lowest shear bond strength (mean = 1.7 +/- 2.1 MPa), followed by the conventional bonding using a 37% phosphoric acid etch and composite (mean = 2.1 +/- 1.2 MPa). The use of Transbond after microetching, with the application of hydrofluoric acid and silane, provided the highest shear bond strength (mean = 5.5 +/- 2.7 MPa). Transbond used with the acid etch-primer had a lower bond strength (mean = 3.8 +/- 2.5 MPa), but was not significantly different from the microetch/hydrofluoric acid/silane group.

CONCLUSION

The results indicated that the use of a phosphoric acid etch with either a cyanoacrylate or composite adhesive to bond orthodontic brackets to porcelain surfaces produced significantly lower shear bond strength. Self-etch primers produced higher but less consistent shear bond strength for bonding orthodontic brackets. The most reliable bonding procedure to porcelain surfaces is through microetching with the use of hydrofluoric acid and a silane coupler before bonding, but this also produces the greatest damage to the porcelain surface.

摘要

目的

评估新型粘合剂/底漆材料的使用效果，包括一种实验性自酸蚀底漆和一种氰基丙烯酸酯粘合剂，以提高正畸托槽与瓷表面的剪切强度。

材料与方法

使用60颗上颌中切牙瓷牙。将牙齿随机分为四组：第1组，牙齿用37%磷酸酸蚀，托槽用复合粘合剂粘结；第2组，牙齿进行微蚀刻，应用氢氟酸和硅烷，然后托槽用复合粘合剂粘结；第3组，使用酸蚀底漆，然后托槽用与前两组相同的复合粘合剂粘结；第4组，牙齿用35%磷酸酸蚀，托槽用氰基丙烯酸酯粘合剂粘结。

结果

对测试组进行方差分析（F = 9.446）表明，四组之间存在显著差异。氰基丙烯酸酯粘合剂的剪切粘结强度最低（平均值 = 1.7 +/- 2.1 MPa），其次是使用37%磷酸酸蚀和复合粘合剂的传统粘结方法（平均值 = 2.1 +/- 1.2 MPa）。微蚀刻后使用Transbond，并应用氢氟酸和硅烷，提供了最高的剪切粘结强度（平均值 = 5.5 +/- 2.7 MPa）。与酸蚀底漆一起使用的Transbond粘结强度较低（平均值 = 3.8 +/- 2.5 MPa），但与微蚀刻/氢氟酸/硅烷组无显著差异。