Number of Natural Teeth and Oral Impacts: A Study on Sri Lankan Adults

Table 1

Teeth present and oral impacts in the sample.

	40–59 year olds (𝑛=405)	≥60 year olds (𝑛=379)
Mean (SD) no. of teeth present	24.3 ± 6.8	17.4 ± 9.8
Median no. of teeth present	27	20
Mean (SD) decayed teeth	1.30 ± 1.8	1.12 ± 2.0
Median no. of decayed teeth	0	0
Mean (SD) OHIP score	6.64 ± 6.8	10.50 ± 8.3
Median OHIP score	5	10
% (n) with oral impacts	25.7% (104)	34.0% (129)
% (n) without oral impacts	74.3% (301)	66.0% (250)
Association between number of teeth and OHIP scores	r = −0.496 𝑃<0.001*	r = −0.535 𝑃<0.001*
Median no. of teeth
In those with impacts	21	12
In those without impacts	27 𝑃<0.001**	22 𝑃<0.001**

*Spearman rank correlation;
**Mann-Whitney test.