NOVEL HYDROXYAPATITE-BASED DENTAL COMPOSITES

被引：160

作者：

LABELLA, R

BRADEN, M

DEB, S

机构：

[1] LONDON HOSP,INST DENT,JOINT DEPT BIOMAT SCI,LONDON E1 2AD,ENGLAND

[2] UNIV LONDON,IRC BIOMED MAT,LONDON,ENGLAND

[3] UNIV LONDON,UNIV LONDON QUEEN MARY & WESTFIELD COLL,LONDON E1 4NS,ENGLAND

来源：

BIOMATERIALS | 1994年 / 15卷 / 15期

关键词：

DENTAL COMPOSITES; HYDROXYAPATITE; ACRYLIC RESINS; TETRAHYDROFURFURYL METHACRYLATE;

D O I：

10.1016/0142-9612(94)90269-0

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Newly designed composite resins for dental applications have been studied. The matrix phases were based on 2,2 bis-4(2-hydroxy-3-methacryloyloxypropoxy)phenyl propane and a urethane dimethacrylate. Tetrahydrofurfuryl methacrylate was added as a diluent to both dimethacrylates in a proportion of 30 wt%. Heat-cured composite resins were obtained with filler weight fractions of 60% and 67%. After surface treating hydroxyapatite powder with a silane coupling agent, filler contents of 60%, 67% and 80% were employed. These materials were then evaluated for Young's modulus, flexural strength, diametral tensile strength and Vickers hardness. With the exception of Young's modulus, all mechanical properties of the tested materials were significantly improved when a silanized hydroxyapatite filler had been used.

引用

页码：1197 / 1200

页数：4