DoxycyclinePeriodontal PocketAnti-Bacterial AgentsAntibiotic ProphylaxisTetracyclineTetracyclinesMicrobial Sensitivity TestsMatrix Metalloproteinase InhibitorsDrug Resistance, BacterialDrug Resistance, MicrobialAzithromycinAnti-Infective AgentsStreptomycesAntibiotics, AntineoplasticOxytetracyclineErythromycinMinocyclineGentamicinsAminoglycosidesDrug Therapy, CombinationBacterial InfectionsBacteriaTreatment OutcomePenicillinsCiprofloxacinAdministration, OralStreptomycinBrucellosis