Digestive System DiseasesGingivitisDigestive System NeoplasmsDigestive SystemCentral Nervous System DiseasesGingivitis, Necrotizing UlcerativeDigestive System and Oral Physiological PhenomenaDigestive System Physiological PhenomenaDigestive System ProcessesNervous System DiseasesDental PlaqueDigestive System FistulaGastrointestinal TractDental Plaque IndexPeriodontal IndexCentral Nervous System Viral DiseasesClemastineGingival HemorrhageMeningoencephalitisGingival Crevicular FluidGastrointestinal NeoplasmsCentral Nervous System InfectionsDigestive System AbnormalitiesPeriodontitisDiagnostic Techniques, Digestive SystemGastrointestinal DiseasesMouthwashesGingivaNomaPeriodontal DiseasesCause of DeathChronic PeriodontitisToothpastesIntestinesPancreasSubacute Sclerosing PanencephalitisLarvaPrevotella intermediaStomachAIDS Dementia ComplexPeriodontal Attachment LossLamin Type AMaus Elberfeld virusBrainBrain DiseasesDental CalculusCerebrospinal FluidMeningesOral Hygiene IndexPeriodontal PocketDemyelinating DiseasesTime FactorsDentifricesRisk Factors