Copal
National Institutes of Health
Papers overview
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The first fossil orchid bee from Early Miocene Mexican amber is described and figured. Eulaema ( Apeulaema ) zigrasi Engel, new…
Abstract A new fossil orchid bee, Euglossa (Euglossa) cotylisca Hinojosa-Díaz and Engel, new species (Anthophila: Apidae: Apinae…
A number of laboratory and clinical studies over the last 15 years have explored the potential advantages of bonding amalgam to…
Microleakage presents a major challenge to the success of all restorations placed in the oral cavity, resulting in postoperative…
This in vitro study compared the microleakage of Class 5 amalgam restorations placed in extracted human teeth lined with a 4-META…
The suitability of an automatic sphygmomanometer for epidemiological work was evaluated in two studies. In the first, blood…
Radiocarbon analysis of selected amber and copal specimens yielded infinite radiocarbon ages for amber as expected, but all the…
Postoperative microleakage in amalgam-restored teeth can cause inflammation and thermal sensitivity. A copal varnish can prevent…