A family dentist established that the oral self-care of a 58-year-old man was suddenly inadequate. The dental hygienist who had been recruited subsequently noticed that the dexterity of the man was inadequate. The man's general medical practitioner referred him to a neurologist, who diagnosed Parkinson's disease. Due to this problematic situation, the man was off the family dentist's radar for approximately 1 year. Thereafter, a course of intensive support for his oral health behaviour was initiated. Given the progressivity of Parkinson's disease, it makes sense to aim at an oral health plan resistant to the patient's life course. The family dentist should be aware of his continuing responsibility to provide care and supervision until such time when informal and professional domiciliary care are no longer satisfactory or achievable and admission to a care facility is unavoidable. Only then can the family dentist hand over his responsibility to the geriatric dentist allied to that specific care facility.