摘要:

Skin‐sensitizing rosin is present in Duraphat, a fluoride varnish used all over the world. Two cases of hypersensitivity to Duraphat are presented: a dental nurse with dermatitis of the hand and a patient with allergic contact stomatiti

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1993.tb01646.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

The aim of the present study was to evaluate types and frequencies of radiographic screening examinations, and radiographic equipment and film used in general dental practice in Denmark. A questionnaire was mailed to 400 randomly selected dental practitioners. A total of 258 questionnaires were returned, out of which 249 were analyzed. Two‐thirds of the respondents performed radiographic screening examinations, of which bitewing‐screening was the one most frequently used for first‐visit and regular patients. The more recent their graduation year, the more apt were dentists to perform radiographic screening examinations. More than 40% of the dentists had radiographic units operating atavoltage capacity of 60–70 kV, and more than 50% had facilities for automatic or semiautomatic processing. Only one‐quarter of the respondents used the Kodak Ektaspeed film (E‐speed film). The results show that radiographic procedures and film used in general dental practice are not always in accordance with guidelines and reco

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1993.tb01647.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

Masseter muscle autopsies were obtained from six different areas of six pigs. The autopsies were stained for the demonstration of myosin ATPase activity by means of a conventional histochemical technique. As compared with human masseter, the pig masseter muscle contained more type II fibers. But, like the human masseterMasseter muscle autopsies were obtained from six different areas of six pigs. The autopsies were stained, the pig muscle had a varying distribution of fiber types in the different autopsy areas, a distribution which might be the result of an adaptation to carry out special functions such as chewing, swallowing, and jaw posture. The fiber type distribution in the pig masseter also varied among individuals, probably reflecting various levels of utilization of the muscles besides different genetic influences. Moreover, pig masseter contained fibers of intermediate staining intensity (IM fibers), a fiber type rarely seen except in human masticatory muscles. In conclusion, we consider the pig masseter to be a useful animal model to study muscular adaptations to altered function in the orofacial region.

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1993.tb01648.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

Microfilled test specimens were polymerized for 40 s with 10 different curing units. The specimens were stored for 7 days at 36±0.5°C, and then the hardness of the surface was measured. The depth of cure of the 10 units was also measured, but no correlation was found between surface hardness and depth of cure. Even inferior curing units were able to polymerize the surface just as effectively as good light sources. The conclusion is that one cannot use the surface hardness of an irradiated resin to assess the quality of a curing uni

ISSN:0909-8836    

DOI:10.1111/j.1600-0722.1993.tb01649.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY