Читать книгу A Practical Approach to Special Care in Dentistry - Группа авторов - Страница 136

 About 75% of the population with visual deficits live in the poorest regions of Asia and Africa

 Among the lowest income countries, the proportion of children with blindness but caries free ranges from 53.2% in Sudan to 1.5% in India; paradoxically, studies in India have confirmed the efficacy of various preventive programmes based on promoting adapted oral hygiene techniques