Teenagers (1) Cole crops (1) Teeth--Care and hygiene (1) Statistics (1) Sex (Biology) (1) Research (1) Periodontics (1) Pedodontics (1) Parents (1) Health behavior (1) Health (1) Gingivitis (1) Evaluation (1) Etiquette (1) Diseases (1) Dental plaque (1) Children (1) Attachment and garnishment (1) Americans (1) Ability (1) Dientes--Cuidado e higiene (1) Nigerianos (1) Gingivitis (1) Estudios (1) Hábitos de salud (1) Carta (1) Evaluación (1) Salud (1) Col (1) Norteamericanos (1)