QUANTITATIVE MEASUREMENT OF THE OPACITY OF AESTHETIC DENTAL FILLING MATERIALS

被引：25

作者：

CRISP, S ^{[1
]}

ABEL, G ^{[1
]}

WILSON, AD ^{[1
]}

机构：

[1] LAB GOVT CHEM,DEPT IND,CORNWALL HOUSE,STAMFORD STR,LONDON SE1 9NQ,ENGLAND

来源：

JOURNAL OF DENTAL RESEARCH | 1979年 / 58卷 / 06期

关键词：

D O I：

10.1177/00220345790580060801

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

A method is described for measuring the opacity of aesthetic dental filling materials using a goniophotometer. Procedures are given for converting measured opacity values to those referred to a 70% reflectance background (C0.7 values) as required by existing specifications. The conversion is involved, and, since most available white surfaces have reflectance of about 80%, it is recommended that in future specifications opacity be recorded as C0.8 values. Opacity values for 28 materials are reported. It was found that the opacity of dental cement decreases for several days following preparation and that powder/liquid ratio has little effect, while pigmentation has a marked effect on opacity. © 1979, SAGE Publications. All rights reserved.

引用

页码：1585 / 1596

页数：12

共 12 条

[1]

CLARKE FJJ, 1976, COMMUNICATION

[2]

DICKSON G, 1975, COMMUNICATION

[3]

JEFFREY IWM, 1972, J DENT, V1, P202

[4]

Judd DB, 1934, BUR STAND J RES, V13, P281

[5] Optical specification of light-scattering materials [J].

Judd, DB .

JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1937, 19 (03) :287-317

[6]

KINGERY WD, 1960, INTRO CERAMICS, pCH15

[7]

Kubelka P., 1931, Z TECHNOL PHYS, V12, P593

[8]

Paffenbarger GC, 1937, J RES NBS, V19, P314

[9]

SCHOENMAKERS H, 1975, COMMUNICATION

[10] CLINICAL IMPLICATIONS OF SOME OPTICAL PROPERTIES OF SILICATE CEMENT [J].

STOREY, BE ;

JEFFREY, IWM .

JOURNAL OF DENTISTRY, 1973, 2 (02) :77-84

← 1 2 →