title: Dental status of an institutionalized elderly population of 60 years and over in Qingdao, China.
abstract: OBJECTIVE
  The aim of this study was to investigate dental status of institutionalized elders and to relate outcomes with background variables and oral functionality.
  
  
  METHODS
  Dental status of 512 elders (≥60 years) from eight nursing homes in Qingdao were analyzed in terms of prevalence of decayed (D), missing (M), filled (F), and replaced teeth (R). Multivariate logistic regression was applied to determine relationships with the background variables age, gender, and SES. Prevalence of D, M, and F was analyzed also for separate dental regions. For determining oral functionality, prevalence of dentitions with ≥20 teeth without and with tooth replacements was plotted against age.
  
  
  RESULTS
  Mean number of D varied from 3.8 at 60 years to 4.6 at 90 years, M from 3.6 at 60 years to 6.7 at 90 years for the lower jaw, and from 3.0 at 60 years to 8.0 at 90 years for the upper. Mean number of F in each jaw was low: 0.2 at 60 years to 0.4 at 90 years. Gender and SES effects were limited. Molars had significantly higher prevalence of D and M than premolar and anterior teeth. Seventy percent of participants of 60 years had ≥20 natural teeth and 12 % at 90 years. Including tooth replacements, 96 % at 60 years, and 84 % at 90 years had ≥20 teeth.
  
  
  CONCLUSIONS
  In this sample of institutionalized elders, dental status of the majority of participants did not represent a functional dentition without tooth replacements.
  
  
  CONCLUSIONS
  Institutionalized Chinese elders showed relatively low numbers of decayed teeth but high numbers of missing teeth.
authors.affiliation: Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen, The Netherlands. qian.zhang@radboudumc.nl.
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Department of Prosthodontics, Yantai Stomatological Hospital, North street 142#, Yantai City, Shandong Province, People's Republic of China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Jing
authors.affiliation: Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen, The Netherlands.
authors.forename: Anneloes E
authors.initials: AE
authors.lastname: Gerritsen
authors.affiliation: Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen, The Netherlands.
authors.forename: Dick J
authors.initials: DJ
authors.lastname: Witter
authors.affiliation: Department of Preventive and Restorative Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen, The Netherlands.
authors.forename: Ewald M
authors.initials: EM
authors.lastname: Bronkhorst
authors.affiliation: Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen, The Netherlands.
authors.forename: Nico H J
authors.initials: NH
authors.lastname: Creugers
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D004245:DMF Index; D005260:Female; D006801:Humans; D008297:Male; D009735:Nursing Homes; D009909:Oral Health; D011795:Surveys and Questionnaires
keywords: China; DMF; Dental status; Institutionalized older people; Tooth replacements