摘要:

Abstract –Only a few studies on the setting expansion of phosphate‐bonded investments have been published. In the present work the effect on the non‐restrained setting expansion of mixing time, mixing liquid, mixing device, and volume mixed was investigated for selected brands of this type of investment. It was found that all variables studied may greatly affect the setting expansion, and that the use of the special liquid delivered by the manufacturers in most cases causes an unacceptably high expansion. A modification of the brands studied appears necessary before they can be employed in a precision‐requiring te

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1986.tb01367.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

Abstract –The marginal adaptation of two light‐cured composites, Silux and P‐30, was tested in butt‐joint dentin cavities prepared in extracted human teeth. The cavity diameter ranged from 1.8 mm to 6.3 mm. Only minor differences were found between the marginal contraction gap of Silux and P‐30 when used without previous application of a dentin adhesive. The lightcured Scotchbond proved to be as effective as GLUMA in reducing the contraction gaps of Silux providing the smear‐layer was partly removed, the adhesive polymerized for 50 s and finally wetted with Silux Enamel Bond prior to application of Silux. Both adhesives had markedly less effect on the contraction gaps of the highly

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1986.tb01368.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1986.tb01369.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY