Periodontal treatment needs of 35‐year‐old citizens in Oslo

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Abstract
The periodontal condition was evaluated according to the PI [Russell''s Periodontal Index] and the Periodontal Treatment Need System (PTNS) in a random sample of 35 yr old citizens of Oslo [Norway]. Periodontal disease apparently was a major dental health problem despite the fact that 88.9% of the subjects visited a dentist regularly. No statistically significant differences were found in PI, PTNS and OHI-S [Simplified Oral Hygiene Index] values among different sexes and educational groups. Although the majority of the subjects (77.8%) brushed their teeth more than once a day, oral hygiene status was not satisfactory (mean OHI-S 1.56). Frequency of toothbrushing did not influence mean PI scores. Dental hard and soft tissue lesions related to toothbrushing were found in 30.0 and 6.8% of the subjects respectively, and more often among persons brushing more than once a day than among persons brushing less frequently.