Vosmeijer, F.B. (2022) Multicenter prospectief klinisch onderzoek naar succes en overleving van posterior partiële keramische restauraties met ‘Immediate Dentin Sealing’ (IDS) Invloed van behandelaarsfactoren op de klinische prestatie. thesis, Dentistry.
Full text available on request.Abstract
Aim This prospective multicenter study evaluated the influence of operator factors: (operators) year of graduation, use of rubber dam, use of magnification and treatment duration on success and survival of indirect (lithium disilicate) ceramic restorations with Immediate Dentin Sealing (IDS). Materials & methods A total of 207 asymptomatic (pre)molars with indication for indirect restorations were included in this study. Indirect lithium disilicate restorations fabricated in combination with IDS and cemented with light-polymerizing composite were placed in 165 patients between October 2018 and December 2021 by ten different dentists working in a general practice and centers for special dental care in the Netherlands. A predetermined cementation protocol was followed with a light-polymerizing microhybrid composite and a three-step etch-and-rinse adhesive system. Radiographs, light photos and partial impressions were evaluated visually using a modified version of ‘United States Public Health Service’ (USPHS) quality criteria. Outcome measures were survival and success of the restorations, which were related to treatment factors. Kaplan-Meier was used to present cumulative survival. Influence of treatment factors was investigated by means of Cox regression analysis. Significance level of 5% (p < .05) was used. Results After a mean observation period of 15.6 ± 7.5 months, one absolute failure (vertical root fracture) and eight repairable failures (secondary caries (n=2), fracture (n=3), debonding (n=3)) were observed. Cumulative survival rate at 36 months was 78.6% (95% CI % 42% - 94%). The cumulative success rate using modified USPHS criteria was 47.1% (95% CI 30.0% - 63.0%). Indirect restorations fabricated using rubber dam had a significantly better survival rate (HR: 0.12 95% CI 0.03 – 0.44). Indirect restorations with a treatment time of more than 90 minutes had a significantly better success rate. (HR: 0.01 95% CI 1.2 – 66.1). Conclusions Within the limits of short-term follow-up, it was concluded that posterior indirect lithium disilicate restorations with IDS, cemented with light-curing composite, are a good treatment option for both experienced and inexperienced practitioners in general and referral practices. Higher survival rates were found for indirect restorations luted using rubber dam than not using rubber dam and higher success for indirect restorations with treatment time longer than 90 minutes.
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Gresnigt, Dr. M.M.M. and van den Breemer, Dr. C.R.G. |
| Faculty: | Medical Sciences |
| Date Deposited: | 03 May 2023 11:20 |
| Last Modified: | 03 May 2023 11:20 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3505 |
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