The aim of this study is to determine the blood's mercury level of patients who had amalgam root end filling surgeries. It is to be examined if the mercury concentration in blood is elevated by using amalgam retroseal.
* A total of 14 patients who needs surgical root canal therapy (SRCT) participated in this clinical study. * The Isfahan University Human Subjects Review Committee approved the protocol of the study. * All patients filled in the consent form. * Apicoectomy with retrograde amalgam filling performed for all participant. * Blood samples were collected in three period of time immediately before and immediately after each surgery and also one week later. * Each time 10 ml blood was drawn from each patient. * Analysis of total mercury in blood samples was performed using cold-vapor atomic absorption spectrometry
Study Type
INTERVENTIONAL
Allocation
NA
Masking
TRIPLE
Enrollment
14
In all surgical intervention a zinc free amalgam (Tytin. Kerr Sybron Crop., Romulus, MI) was used in the root end prepared spaces as root end filling material. Blood samples were collected in three period of time immediately before and immediately after each surgery and also one week later.
School of Dentistry, Isfahan University of Medical Sciences
Isfahan, Isfahan, Iran
Blood mercury concentration
Time frame: within the 7 days after surgery
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