IADR Abstract Archives
Peri-implant Health at Titanium and Zirconia Abutments: One-year Clinical Results
Objectives: To compare peri-implant tissue health between implants restored with titanium(Ti) and zirconia(Zr) abutments at one-year loading period
Methods: Thirty systemically and periodontally healthy patients, each with two contralaterally osteointegrated dental implants, were included in this study. The implants were restored either with Ti abutments and porcelain-fused-to-metal crowns, or with Zr abutments and ceramic crowns. Immediately after crown cementation (Baseline) and at 3, 6 and 12 months of loading, periodontal clinical parameters including pocket depths(PD), clinical attachment level(CAL), plaque and bleeding scores were assessed. Additionally, samples for detecting periodontal pathogens and inflammatory markers were taken. Descriptive statistics and paired t-tests were used for statistical analyses.
Results: Twenty-four patients (mean age 33.3±8.4years, 13 female, 1 smoker) completed the 12-months follow-up. All analysed patients were at baseline periodontally healthy (meanPD 2.26±0.24mm, meanCAL 1.98 ±0.71mm) with moderate to poor oral hygiene (mean full mouth plaque score/FMPS 47.26±20.10%). Physiological PD- and CAL-values were observed both for Ti and Zr restored implants at baseline (PD: Ti:2.80±0.65mm, Zr: 2.75±0.43, CAL Ti: 1.11±0.94, Zr: 1.20±0.88mm) and up to 12 months of loading (PD: Ti: 3.16±0.63, Zr: 2.93±0.81, CAL: Ti: 1.91±0.66, Zr: 1.97±0.64mm) with no statistically significant differences between Ti and Zr. Nonetheless, a statistically significant increase in CAL was observed for each type of restauration at all follow-ups(p<0.05) and at 6 and 12 months for the peri-implant BOP(p<0.05). Counts of Tanerella forsythia increased significantly(p=0.043) up to 12 months at Ti restored implants. Nonetheless, no statistically significant differences for the bacterial accumulation were detected between Ti and Zr restored implants. IL 10 increased statistically significantly(p=0.01) at 6 months at Ti sites, being statistically significantly different from the Zr sites only at 3 months(p=0.01).
Conclusions: Within one year of prosthetic loading both Ti and Zr abutments displayed similar peri-implant tissue conditions and patterns of bacterial accumulation and inflammatory markers
Methods: Thirty systemically and periodontally healthy patients, each with two contralaterally osteointegrated dental implants, were included in this study. The implants were restored either with Ti abutments and porcelain-fused-to-metal crowns, or with Zr abutments and ceramic crowns. Immediately after crown cementation (Baseline) and at 3, 6 and 12 months of loading, periodontal clinical parameters including pocket depths(PD), clinical attachment level(CAL), plaque and bleeding scores were assessed. Additionally, samples for detecting periodontal pathogens and inflammatory markers were taken. Descriptive statistics and paired t-tests were used for statistical analyses.
Results: Twenty-four patients (mean age 33.3±8.4years, 13 female, 1 smoker) completed the 12-months follow-up. All analysed patients were at baseline periodontally healthy (meanPD 2.26±0.24mm, meanCAL 1.98 ±0.71mm) with moderate to poor oral hygiene (mean full mouth plaque score/FMPS 47.26±20.10%). Physiological PD- and CAL-values were observed both for Ti and Zr restored implants at baseline (PD: Ti:2.80±0.65mm, Zr: 2.75±0.43, CAL Ti: 1.11±0.94, Zr: 1.20±0.88mm) and up to 12 months of loading (PD: Ti: 3.16±0.63, Zr: 2.93±0.81, CAL: Ti: 1.91±0.66, Zr: 1.97±0.64mm) with no statistically significant differences between Ti and Zr. Nonetheless, a statistically significant increase in CAL was observed for each type of restauration at all follow-ups(p<0.05) and at 6 and 12 months for the peri-implant BOP(p<0.05). Counts of Tanerella forsythia increased significantly(p=0.043) up to 12 months at Ti restored implants. Nonetheless, no statistically significant differences for the bacterial accumulation were detected between Ti and Zr restored implants. IL 10 increased statistically significantly(p=0.01) at 6 months at Ti sites, being statistically significantly different from the Zr sites only at 3 months(p=0.01).
Conclusions: Within one year of prosthetic loading both Ti and Zr abutments displayed similar peri-implant tissue conditions and patterns of bacterial accumulation and inflammatory markers