title: Clinical and other risk indicators for early periodontitis in adults.
abstract: BACKGROUND
  Periodontal diseases affect over half the adults in the U.S., disproportionately affecting minority populations. Periodontitis can be treated in early stages, but it is not clear what features indicate, or could be risk factors for, early stages of periodontal attachment loss. This study aimed to evaluate associations between clinical and other risk indicators of early periodontitis.
  
  
  METHODS
  A cross-sectional evaluation of 225 healthy and early periodontitis adults aged 20 to 40 years was performed. Clinical measurements, demographic information, and smoking histories were recorded. Analyses evaluated demographic and clinical associations with health and early periodontitis disease categories and periodontal attachment loss. Patterns of attachment loss at interproximal and buccal/lingual sites were evaluated.
  
  
  RESULTS
  Subject age, plaque, and measures of gingivitis exhibited associations with attachment loss and probing depth. More periodontal attachment loss was detected in African-American and Hispanic subjects compared to Asian and Caucasian subjects. Smoking history was associated with attachment loss. At interproximal sites, lower molars most frequently had attachment loss, whereas at buccal/lingual sites, higher proportions of lower bicuspid teeth demonstrated attachment loss compared with other sites.
  
  
  CONCLUSIONS
  In this study of subjects with minimal attachment loss, gingival inflammation was associated with early periodontitis. Lower molar interproximal sites were frequently associated with interproximal attachment loss, whereas lower bicuspid teeth were at risk for gingival recession on buccal surfaces.
authors.affiliation: Department of Molecular Genetics, The Forsyth Institute, Boston, MA 02115, USA. annetanner@forsyth.org
authors.forename: Anne C R
authors.initials: AC
authors.lastname: Tanner
authors.forename: Ralph
authors.initials: R
authors.lastname: Kent
authors.forename: Thomas
authors.initials: T
authors.lastname: Van Dyke
authors.forename: Steven T
authors.initials: ST
authors.lastname: Sonis
authors.forename: Lora A
authors.initials: LA
authors.lastname: Murray
mesh_terms: D000328:Adult; D000367:Age Factors; D017668:Age of Onset; D001641:Bicuspid / Q000473:pathology; D003430:Cross-Sectional Studies; D003773:Dental Plaque / Q000453:epidemiology; D005006:Ethnicity; D005260:Female; D005889:Gingival Recession / Q000453:epidemiology; D005891:Gingivitis / Q000453:epidemiology; D006801:Humans; D008297:Male; D008963:Molar / Q000473:pathology; D017622:Periodontal Attachment Loss / Q000453:epidemiology; D010512:Periodontal Index; D010518:Periodontitis / Q000453:epidemiology* / Q000473:pathology*; D015995:Prevalence; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology; D018709:Statistics, Nonparametric; D014481:United States / Q000453:epidemiology