인공타액에서 아말감 초기부식에 대한 실험적 연구
AN EXPERIMENTAL STUDY ON THE INITIAL AMALGAM CORROSION IN ARTIFICIAL SALIVA
김미자, 김경진,
소속 상세정보
김미자 ( ) - 서울대학교
김경진 ( ) - 서울대학교
KMID : 0362319920170020287
Abstract
The amounts of copper, mercury, silver, tin, and zinc released from conventional, dispersed phase and spherical high copper content amalgam immersed in artificial saliva soln, for periods of 2 hours, 1 day, 7 days, 30 days has been measured using
Neutron Activation analysis and Atomic Absorption Spectrophotometry.
The second electron image and EDX of the surface of samples immersed in artificial saliva were observed using SEM.
@ES The following results obtained.
1. The dispersed non-Υ2 amalgam released more Hg, Ag than the Υ2-amalgams. Later a decrease of the release rate could be observed.
2. The dispersed high copper amalgam released more copper than low-copper amalgam and the release rate was decreased with time.
But the amounts of copper released from Tytin increased with time.
3. Zinc was released all the experiment time.
4. EDAX showed that surface was composed of Ca, P, Sn, Ag, Zn, and Cu, but C1 was not detected.
5. The discontinued destructed surface was observed from the polished amalgam surface.
High copper amalgam was destructed more than low copper amalgam.
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