软衬材料与义齿基托聚合物粘结强度的评估。

Evaluation of bond strength of soft relining materials to denture base polymers.

作者信息

Mutluay Mustafa Murat, Ruyter I Eystein

机构信息

NIOM, Nordic Institute of Dental Materials, Haslum, Norway.

出版信息

Dent Mater. 2007 Nov;23(11):1373-81. doi: 10.1016/j.dental.2006.11.014. Epub 2007 Jan 12.

DOI:10.1016/j.dental.2006.11.014

PMID:17222898

Abstract

OBJECTIVES

To evaluate the initial bonding properties of recently and previously introduced soft relining materials to denture base polymers with different polymerization techniques and different water content.

METHODS

The initial tensile bond strength of 10 soft liners (Mollosil Plus, Dentusil, Ufi gel Soft, GC Reline Soft, Silagum Comfort, Vertex Soft, Astron Soft, Molloplast B, Flexacryl Soft, Triad Resiline) to three denture base polymers (Paladon 65, Palapress Vario, Ivocap Plus) were assessed with a modified method. Paladon 65 specimens immersed in water for 3 months were also used to test the effect of water content of denture base polymer on bond strength results. After testing, a visual examination of the fracture surfaces and a SEM investigation of the interface structure were performed. Tensile strength of each soft liner material was also tested. Data were analyzed statistically by two-way ANOVA (alpha = 0.05).

RESULTS

Significant differences were found among tensile bond strength results (P < 0.05). Vinyl poly(organosiloxane) soft liners (Mollosil Plus, Dentusil, Ufi gel Soft, GC Reline Soft, Silagum Comfort) and a plasticized PMMA soft liner (Vertex Soft) gave statistically similar bond strength results for different denture base polymers (P>0.05). For the other materials used (Astron Soft, Molloplast B, Flexacryl Soft, Triad Resiline), different denture base polymers caused significantly different results (P < 0.05). Poly(organosiloxane) based materials gave slightly higher bond strength results with water immersed specimens than with the dry specimens.

SIGNIFICANCE

A wide variety of newly formulated soft liners used in this study gave comparable or better bond strength results compared to Molloplast B.

摘要

目的

评估近期和先前推出的软衬材料与采用不同聚合技术及不同含水量的义齿基托聚合物的初始粘结性能。

方法

采用改良方法评估10种软衬材料（Mollosil Plus、Dentusil、Ufi gel Soft、GC Reline Soft、Silagum Comfort、Vertex Soft、Astron Soft、Molloplast B、Flexacryl Soft、Triad Resiline）与三种义齿基托聚合物（Paladon 65、Palapress Vario、Ivocap Plus）之间的初始拉伸粘结强度。还使用浸泡在水中3个月的Paladon 65试样来测试义齿基托聚合物含水量对粘结强度结果的影响。测试后，对断裂表面进行目视检查，并对界面结构进行扫描电子显微镜研究。还测试了每种软衬材料的拉伸强度。数据采用双向方差分析进行统计学分析（α = 0.05）。

结果

拉伸粘结强度结果之间存在显著差异（P < 0.05）。乙烯基聚（有机硅氧烷）软衬材料（Mollosil Plus、Dentusil、Ufi gel Soft、GC Reline Soft、Silagum Comfort）和增塑聚甲基丙烯酸甲酯软衬材料（Vertex Soft）对不同义齿基托聚合物的粘结强度结果在统计学上相似（P>0.05）。对于所使用的其他材料（Astron Soft、Molloplast B、Flexacryl Soft、Triad Resiline），不同的义齿基托聚合物导致了显著不同的结果（P < 0.05）。基于聚（有机硅氧烷）的材料对浸泡在水中的试样的粘结强度结果略高于干燥试样。