KPI 6: Mean number of missing teeth per person in those aged 18 years or older
Losing teeth is undesirable and is generally the result of disease, such as tooth decay and periodontal disease, or injury, such as mouth trauma. Some teeth may be extracted because extensive disease precludes other treatment.
The average number of missing teeth in adults aged 18 years and over has remained relatively stable from 6.5 in 2013 to 6.4 in 2017–18.
In 2017–18, the average number of missing teeth increased with age, from 2.5 for adults aged 15–24 years to 13.7 for adults aged 65 years and over.
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