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Journal of Prosthodontic Research Jul 2022There is little evidence as to what is the appropriate replacement interval for complete dentures. The aim of this study was to determine the longevity of complete...
PURPOSE
There is little evidence as to what is the appropriate replacement interval for complete dentures. The aim of this study was to determine the longevity of complete dentures in a population of publicly insured adults across a 20 year observation period.
METHODS
The records of 187,227 Australian adults who accessed complete denture treatment through public clinics between 2000-2019 were assessed. Time to denture replacement was modelled using a Weibull regression and a competing risk regression to adjust for the competing risk of mortality.
RESULTS
Over a 20-year period, 27.7% of dentures were replaced, with a mean longevity of 6.06 (SD: 3.93) years. Pairs of complete dentures had greater mean longevity than single dentures (p<0.001). Approximately 4.6% of dentures provided were replaced within 2 years; 18.4% were replaced between 2 and 10 years and 4.6% of replacements occurred after 10 years.Over 70% of adults who received a complete denture did not replace it during the observation period. Dentures provided by denturists had higher levels of replacement than those made by dentists. Participants over 80 years of age had lower rates of denture replacement. Low socio-economic status and living outside a major city were associated with reduced rates of replacement for dentures under 10 years of age.
CONCLUSION
Complete dentures were commonly replaced after 6 years of service. Pairs of dentures lasted longer than single dentures.
Topics: Adult; Aged, 80 and over; Australia; Dental Care; Denture, Complete; Denture, Partial, Removable; Humans; Retrospective Studies
PubMed: 34645719
DOI: 10.2186/jpr.JPR_D_20_00323 -
Journal (Canadian Dental Association) Aug 2021Occupational characteristics of dental care - including closed environment, proximity to staff and patients and the use of aerosol-generating procedures - put workers at...
INTRODUCTION
Occupational characteristics of dental care - including closed environment, proximity to staff and patients and the use of aerosol-generating procedures - put workers at high risk of COVID-19 exposure and transmission. We describe the frequency of workplace situations that potentially increase the risk of exposure to COVID-19 in dental care compared with other occupations including health care.
METHODS
We conducted a cross-sectional study using sociodemographic and occupational data from the 2016 Canadian census linked to workplace characteristics from the Occupational Information Network (O*NET) dataset. We assessed frequency of workplace indicators using an intensity score from 0 (low) to 100 (high) from O*NET on exposure to infection or disease, physical proximity to others, indoor controlled environments, standard protective equipment and specialized protective equipment.
RESULTS
In 2016, 87 815 Canadians worked in the 5 dentistry occupations of interest: dentists; denturists; dental hygienists and dental therapists; dental technologists, technicians and laboratory assistants; and dental assistants. These occupations were routinely ranked in the top 10 of all occupations examined in terms of exposure to workplace indicators that increase the risk of exposure to COVID-19. Dental hygienists and dental therapists, dental assistants, dentists and denturists, rank as the top 4 occupations, in that order, with the highest exposure to disease or infection and physical proximity to others combined.
CONCLUSIONS
Compared with other occupations, dental care workers are at a higher risk of occupational exposure to COVID-19. These results support the development of workplace guidance to reduce the risk of COVID-19 transmission and enhance the well-being of the dental care workforce.
Topics: COVID-19; Canada; Cross-Sectional Studies; Dental Care; Humans; SARS-CoV-2
PubMed: 34905474
DOI: No ID Found