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pro vyhledávání: '"T. Halfdan Nielsen"'
Autor:
T. Halfdan Nielsen
Publikováno v:
Journal of Endodontics. 6:835-841
The triple CA-test is based on the theory of capillaries discussed in the second part of this series. The test includes the basic CA-test, using an air pressure of 25 atm to demonstrate pore diameters as low as .12μ, and the fever test, which is bas
Autor:
T. Halfdan Nielsen
Publikováno v:
Journal of Endodontics. 6:777-780
By applying the capillary physical laws on leakage occurring in root-filled teeth, it is proved that pores with a diameter of .12 µ and splits with a wall-to-wall distance of approximately .06 µ can be shown by using an air pressure of 25 atmospher
Autor:
T. Halfdan Nielsen
Publikováno v:
Journal of Endodontics. 11:548-554
The Brinell hardness of a chelate cement reaches its maximum value days to weeks after the setting expansion has become constant. Therefore, a constant Brinell hardness should be realized before mechanical loading measurements are applied to the ceme
Autor:
T. Halfdan Nielsen
Publikováno v:
Acta Odontologica Scandinavica. 21:159-174
Autor:
T. Halfdan Nielsen
Publikováno v:
Journal of endodontics. 9(8)
Two groups of additives to the liquid component of zinc oxide-eugenol cements are reported. The one group makes the dement paste flow easily and the other increases its viscosity. A suitable ratio between these additives causes the following improvem
Autor:
T. Halfdan Nielsen
Publikováno v:
Journal of endodontics. 6(9)
A simple device is described by means of which expansion or contraction of cements, or both, can be measured during and after setting. The test specimen is bar-shaped, fixed at one end, and freely movable at the other end. The latter carries a small
Publikováno v:
Europe PubMed Central
The purpose of this study was to test in vivo and in vitro the toxicity and the antibacterial activity of an experimental chelate cement (HN cement) using zinc oxide-eugenol cement as a reference. After subcutaneous injection of the spatulated HN cem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f91eca46b09c03ad25560f8859d50a7
http://europepmc.org/abstract/med/8289021
http://europepmc.org/abstract/med/8289021
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