IADR Abstract Archives
Prevalence of Dental Implants and Oral Health-related Quality of Life
Objectives: To (i) determine the prevalence of dental implants with their supra-constructions, and (ii) describe how they affect oral health-related quality of life (OHRQoL) in the Swedish adult general population.
Methods: In a random sample of the adult Swedish population (response rate: 46%, N=1,309 subjects), prevalence of implant-supported prostheses was determined in a questionnaire. OHRQoL was determined using the Swedish version of Oral Health Impact Profile (OHIP).
Results: Mean age of study subjects was 50.1+17.4 years, and 54% of the individuals were female. Subjects’ general and oral health was “very good” or “excellent” for 53% and 45% respectively. OHIP49 mean score was 18.4 points.
The prevalence of any implant-supported prosthesis in the Swedish population was 8% (95% confidence interval, CI:7-10%). Supra-constructions were slightly more common in the upper jaw (6%) compared to the lower (4%). Implant-supported crowns (5%) were slightly more frequent than implant-supported fixed prostheses (4%). Implant-supported overdentures were rare (1%).
OHRQoL did not differ substantially in subjects with implant-supported prostheses compared to the population in general because OHIP score differences did not exceed the minimal important difference (MID) of 6 points. Gender influenced OHIP49 scores minimally with male subjects having 19.3 (95% CI:12.8-25.8) points vs female subjects having 21.3 (95% CI:13.5-29.1) OHIP points. Age had an influence as well as type of supra-construction. For implant-supported crowns scores were 19.1 (95% CI:12.1-26.1) in subjects less than 65 years old vs 25.9 (95% CI:6.7-45.1) OHIP point in subjects 65 years and older. Numbers in both age groups for implant-supported fixed prostheses were 24.7 (95% CI:13.1-36.3) and 17.3 (95% CI:8.8-25.8) points.
Conclusions: Dental implants supporting fixed prostheses and crowns seem to recover well OHRQoL deterioration due to lost teeth. Results of this national study provide a framework for interpretation of OHIP scores in dental implant studies of patients.
Methods: In a random sample of the adult Swedish population (response rate: 46%, N=1,309 subjects), prevalence of implant-supported prostheses was determined in a questionnaire. OHRQoL was determined using the Swedish version of Oral Health Impact Profile (OHIP).
Results: Mean age of study subjects was 50.1+17.4 years, and 54% of the individuals were female. Subjects’ general and oral health was “very good” or “excellent” for 53% and 45% respectively. OHIP49 mean score was 18.4 points.
The prevalence of any implant-supported prosthesis in the Swedish population was 8% (95% confidence interval, CI:7-10%). Supra-constructions were slightly more common in the upper jaw (6%) compared to the lower (4%). Implant-supported crowns (5%) were slightly more frequent than implant-supported fixed prostheses (4%). Implant-supported overdentures were rare (1%).
OHRQoL did not differ substantially in subjects with implant-supported prostheses compared to the population in general because OHIP score differences did not exceed the minimal important difference (MID) of 6 points. Gender influenced OHIP49 scores minimally with male subjects having 19.3 (95% CI:12.8-25.8) points vs female subjects having 21.3 (95% CI:13.5-29.1) OHIP points. Age had an influence as well as type of supra-construction. For implant-supported crowns scores were 19.1 (95% CI:12.1-26.1) in subjects less than 65 years old vs 25.9 (95% CI:6.7-45.1) OHIP point in subjects 65 years and older. Numbers in both age groups for implant-supported fixed prostheses were 24.7 (95% CI:13.1-36.3) and 17.3 (95% CI:8.8-25.8) points.
Conclusions: Dental implants supporting fixed prostheses and crowns seem to recover well OHRQoL deterioration due to lost teeth. Results of this national study provide a framework for interpretation of OHIP scores in dental implant studies of patients.