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The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

March/April 2013
Volume 26 , Issue 2

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Predictors of Multiple Tooth Loss Among Socioculturally Diverse Elderly Subjects

Tomoya Gonda, DDS, PhD/Michael I. MacEntee, LDS(I), FRCD(C), PhD/H. Asuman Kiyak, MA, PhD/G. Rutger Persson, DDS, Dr Odont/Rigmor E. Persson, DDS, MSD/Christopher Wyatt, DMD, MSc

Pages: 127134
PMID: 23476905
DOI: 10.11607/ijp.2893

Purpose: This study identifies clinical factors that predict multiple tooth loss in a socioculturally diverse population of older adults. Materials and Methods: A total of 193 participants from English-, Chinese-, or Punjabi-speaking communities in Vancouver, British Columbia, with low incomes and irregular use of dental services were followed for 5 years as part of a clinical trial of a 0.12% chlorhexidine mouthrinse. The participants were interviewed and examined clinically, including panoramic radiographs, at baseline and annually for 5 years. Binary logistic regression was used to test the hypothesis that there was no difference between incidence of multiple (≥ 3) tooth loss in older people with various biologic, behavioral, prosthodontic, and cultural variables over 5 years. Results: Multiple tooth loss, which was distributed similarly among the groups in the trial, occurred in 39 (20%) participants over 5 years. The use of removable prostheses was the best predictor of loss, followed by the number of carious surfaces and number of sites with gingival attachment loss > 6 mm. The pattern of prediction was consistent across the three linguocultural groups. Conclusion: The use of removable dentures was the dominant predictor of multiple tooth loss in the three communities, but that tooth loss was not significantly associated with the cultural heritage of the participants. Int J Prosthodont 2013;26:127134. doi: 10.11607/ijp.2893

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