CPP-ACP 添加剂对氧化锌非丁香酚暂封材料物理性能的影响。

Effect of CPP-ACP addition on physical properties of zinc oxide non-eugenol temporary cements.

机构信息

Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Cooperative Research Centre for Oral Health Science, Melbourne Dental School, 720 Swanston Street, Victoria 3010, Australia.

出版信息

Dent Mater. 2011 Apr;27(4):329-38. doi: 10.1016/j.dental.2010.11.011. Epub 2010 Dec 16.

DOI:10.1016/j.dental.2010.11.011

PMID:21167585

Abstract

OBJECTIVES

Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) is a milk derivative which holds nanoclusters of calcium and phosphate ions. The presence of CPP-ACP has been found to reduce demineralization and enhance remineralization in subsurface enamel and in dentin. Incorporation of CPP-ACP into luting cements has not been investigated. The aim of this study was to determine the effect on the physical properties of two commercially available zinc oxide non-eugenol temporary luting cements with incorporation of up to 8% (w/w) CPP-ACP.

METHODS

Setting time, compressive strength, diametral tensile strength, film thickness and solubility tests were investigated for 0, 0.5, 1.0, 2.0, 3.0, 4.0 and 8.0% (w/w) CPP-ACP incorporated into Freegenol™ and Temp-Bond(®) NE. Tests were carried out based on ISO 3107 requirements.

RESULTS

Compressive and diametral tensile strengths progressively decreased with increasing concentrations of up to 8.0% (w/w) CPP-ACP incorporated into both Freegenol™ and Temp-Bond(®) NE. Setting time was delayed beyond ISO requirements. Film thickness was not adversely affected. Increased solubility of Temp-Bond(®) NE with 8.0% (w/w) CPP-ACP incorporation suggested an effect of the CPP-ACP on this property for this cement.

SIGNIFICANCE

The incorporation of up to 8.0% (w/w) CPP-ACP into two zinc oxide non-eugenol luting cements has no adverse effects on the film thickness, compressive strength and diametral tensile strength of the cements investigated. Solubility investigations suggest that CPP-ACP leaches out of the zinc oxide non-eugenol luting cements into an aqueous environment.

摘要

目的

酪蛋白磷酸肽-无定形磷酸钙（CPP-ACP）是一种牛奶衍生产品，其中含有钙和磷酸盐离子的纳米簇。已经发现 CPP-ACP 的存在可以减少表面下釉质和牙本质的脱矿质并增强再矿化。尚未研究将 CPP-ACP 掺入水门汀中。本研究的目的是确定将高达 8％（w / w）CPP-ACP掺入两种市售的氧化锌非丁香酚临时水门汀中对物理性能的影响。

方法

根据 ISO 3107 的要求，对 0、0.5、1.0、2.0、3.0、4.0 和 8.0％（w / w）CPP-ACP 掺入 Freegenol™和 Temp-Bond®NE 的凝固时间、抗压强度、直径拉伸强度、薄膜厚度和溶解度进行了测试。

结果

随着掺入的 CPP-ACP 浓度高达 8.0％（w / w），两种 Freegenol™和 Temp-Bond®NE 的抗压强度和直径拉伸强度逐渐降低。凝固时间延迟超过 ISO 要求。薄膜厚度没有受到不利影响。Temp-Bond®NE 的溶解度随着 8.0％（w / w）CPP-ACP 的掺入而增加，这表明 CPP-ACP 对该水门汀的这种特性有影响。