使用新设计的黏附贴片封闭光滑牙釉质表面：放射化学体外分析

Sealing smooth enamel surfaces with a newly devised adhesive patch: a radiochemical in vitro analysis.

作者信息

Schmidlin Patrick R, Zehnder Matthias, Zimmermann May A, Zimmermann Jörg, Roos Malgorzata, Roulet Jean-François

机构信息

Clinic for Preventive Denstistry, Periodontology and Cariology, Center for Dental and Oral Medicine and Cranio-Maxillifacial Surgery, University of Zürich, Plattenstrasse 11, 8028 Zürich, Switzerland.

出版信息

Dent Mater. 2005 Jun;21(6):545-50. doi: 10.1016/j.dental.2004.08.005.

DOI:10.1016/j.dental.2004.08.005

PMID:15904697

Abstract

OBJECTIVES

To assess the enamel-protective potential of a newly devised adhesive patch when used as a smooth surface sealant.

METHODS

Eighty enamel discs were prepared from bovine lower central incisors and then irradiated. Twenty specimens were treated with one of three sealing options: enamel bond in a two-step application, the prototype of an adhesive patch, or a flowable resin. Unsealed enamel served as positive controls. Loss of apatite was determined using a radiochemical liquid scintillation method after immersion of the samples in saliva or lactic acid (n=10 per treatment group) each for up to 21 days, during which this experimental and control enamel surfaces were exposed to ten toothbrush strokes per day. Quantitative liquid scintillation data were verified by polarized light microscopy.

RESULTS

With lactic acid exposure, a double layer of enamel bonding showed better enamel protection than untreated controls, but was significantly less effective than the adhesive patch or filled composite (P<0.05). No significant differences were noted between the latter two treatments.

SIGNIFICANCE

It was concluded that the adhesive patch under investigation merits further studies to assess its potential as an inter-proximal sealant.

摘要

目的

评估一种新设计的粘性贴片用作光滑表面封闭剂时对牙釉质的保护潜力。

方法

从牛的下颌中切牙制备80个牙釉质圆盘，然后进行辐照。20个样本用三种封闭方法之一进行处理：两步法应用的牙釉质粘结剂、粘性贴片原型或可流动树脂。未封闭的牙釉质作为阳性对照。将样本分别浸泡在唾液或乳酸中长达21天（每个处理组n = 10），在此期间，实验牙釉质表面和对照牙釉质表面每天接受10次牙刷刷洗，之后使用放射化学液体闪烁法测定磷灰石的损失。通过偏光显微镜验证定量液体闪烁数据。