Benzoyl PeroxideClindamycinAcne VulgarisMethylmethacrylatePeroxidesDermatologic AgentsHypopigmentationLymecyclineAnti-Bacterial AgentsBacteriaOxytetracyclineToluidinesHydrogen PeroxideErythromycinLincomycinButylated HydroxytolueneBacteria, AnaerobicKeratoacanthomaMicrobial Sensitivity TestsAdministration, TopicalPropionibacterium acnesPolymethyl MethacrylateBacteroides fragilisAcrylic ResinsMethylmethacrylatesDrug Resistance, BacterialFree Radical ScavengersBacteroides InfectionsMacrolidesGram-Positive BacteriaMetronidazoleDrug Resistance, MicrobialBacteria, AerobicLincosamides