Periodontal Attachment LossPeriodontal IndexPeriodontal PocketGingivitisDental Plaque IndexPeriodontal DiseasesDental Devices, Home CarePeriodontitisTooth MobilityTooth MigrationGingival HemorrhageChronic PeriodontitisGingival RecessionDental ScalingOral HygieneDental PlaqueGingival Crevicular FluidAlveolar Bone LossAggressive PeriodontitisTooth LossFurcation DefectsRoot PlaningEikenella corrodensPeriodontiumObject AttachmentGingivaSmokingCross-Sectional StudiesVirus AttachmentReactive Attachment DisorderAge FactorsRisk FactorsCell AdhesionBacterial AdhesionAttachment Sites, MicrobiologicalMatrix Attachment Regions