多西环素牙周缓释凝胶的配方筛选研究
Formula Screening Study on Periodontal Sustained-release Gel with Doxycycline
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Abstract: OBJECTIVE To explore a best formula of sustained-released gel.METHODS Made an orthogonal design at 3 levels of 3 factors(concentration of PLGA,portion of solvent and concentration of doxycycline) to measure the concentration of doxycycline in vitro,cacula