A survey of a random sample of 5,586 Canadians found that 63% of older adults had visited a dentist in the last year. The 95% confidence interval was 56% to 70%. This means that

there is 95% certainty that 56% to 70% of older adults had dental visits.

no more than 70% of dental visits occurred in 95% of older adults.

there is 95% certainty that 63% of older adults had dental visits.

between 56% and 70% of older adults account for 95% of the dental visits.