PENGARUH EKSTRAK PROPOLIS Trigona Sp DENGAN BERBAGAI KONSENTRASI DALAM MENGHAMBAT PERTUMBUHAN BAKTERI Streptococcus alpha ISOLAT PLAK GIGI ANAK (KAJIAN IN VITRO) by , HERI ISWANTO, , Drg. Sri Kuswandari, M.S., SpKGA (K), Ph.D.

“…In vitro studies conducted on Trigona sp propolis extract concentration of 4%, 6%, 8% and 10% obtaine from the maceration of honeycomb Ambarawa- Trigona Sp of Central Java with 70% ethanol. …”