Читать книгу A Practical Approach to Special Care in Dentistry - Группа авторов - Страница 148

Deafness is the difficulty or inability to use the sense of hearing due to a partial (hearing loss) or total (cophosis) unilateral or bilateral loss of auditory capacity. It is estimated that 7% of the population has an incapacitating hearing loss. Deafness affects men and women equally, and its prevalence increases with age. The condition is classified according to the anatomical area where the injury is located, the degree of hearing loss and the age at onset (Table 3.2.2).