Changes in periodontal treatment needs. A follow-up study of Oslo citizens from the ages of 35 to 50 years.
A random sample of 35-year-old subjects from Oslo took part in a dental survey in 1973 and were re-examined in 1988. Eighty-one subjects (85%) attended the final examination. The need for periodontal treatment was assessed by the Periodontal Treatment Need System (PTNS), and the oral hygiene by the Simplified Oral Hygiene Index (OHI-S). The participants attended a structured interview and answered a questionnaire about general and dental health habits as well as psycho-social factors. Only small changes in the distribution of subjects in the different PTNS categories were found to have taken place during the 15 years. In 1973, 56.8% were in need of scaling (Class B) and 32.1% had one or more deep inflamed pockets (Class C), and in 1988 the scores were 54.3% and 30.1% respectively. A logistic regression model was used to study the associations between risk factors and increased treatment need, as expressed by increase in the number of C-quadrants. Increased number of C-quadrants was positively associated both with short duration of education and with no interdental cleaning. Using a socio-ecological model for periodontal diseases, variables describing the items "behaviour" and "environment" were found to be most closely associated with increased need for periodontal treatment.
Department of Oral Diagnosis, University of Oslo, Norway.
B F
BF
Hansen
E
E
Bjertness
J K
JK
Grønnesby
H M
HM
Eriksen
D000328:Adult; D003729:Dental Care / Q000706:statistics & numerical data; D004522:Educational Status; D005260:Female; D015438:Health Behavior; D006301:Health Services Needs and Demand / Q000706:statistics & numerical data; D006801:Humans; D016015:Logistic Models; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009664:Norway / Q000453:epidemiology; D016017:Odds Ratio; D009911:Oral Hygiene Index; D010510:Periodontal Diseases / Q000453:epidemiology*; D010512:Periodontal Index; D010514:Periodontal Pocket / Q000453:epidemiology; D012307:Risk Factors; D012494:Sampling Studies; D011795:Surveys and Questionnaires