Survival rates of a lithium disilicate-based core ceramic for three-unit esthetic fixed partial dentures: a 10-year prospective study
| Autor: | Antonio Fons-Font, Jaime del Río Highsmith, Elena Lagos-Flores, Juan Luis Román-Rodriguez, Maria Granell-Ruiz, M. Fernanda Solá-Ruíz |
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| Rok vydání: | 2013 |
| Předmět: |
Dental Restoration Failure
Male Ceramics Surface Properties Dentistry Color Dental Abutments Dental bonding Dental Caries Esthetics Dental Occlusion Medicine Humans Gingival Recession Longitudinal Studies Prospective Studies Prospective cohort study Denture Design Survival rate Survival analysis business.industry Dental Plaque Index Dental Bonding General Medicine Dentin Sensitivity Middle Aged Tooth Preparation Prosthodontic Dental Porcelain Survival Analysis Treatment Outcome Lithium Compounds Denture Partial Fixed Female Oral Surgery Periodontal Index business Follow-Up Studies |
| Zdroj: | The International journal of prosthodontics. 26(2) |
| ISSN: | 0893-2174 |
| Popis: | Purpose The aim of this prospective study was to evaluate the clinical efficacy and long-term survival rate of three-unit fixed partial dentures (FPDs) made from lithium disilicate-based core ceramic. Materials and methods Twenty-one three-unit FPDs were placed in 19 patients to replace single lost teeth in the esthetic area, following a study protocol that took clinical, esthetic, and radiologic aspects into consideration. Each case was reviewed at 1 week following placement, at 6 months, and then annually for 10 years. Statistical analysis was performed using Kaplan-Meier survival analysis. Results Out of the 19 patients, 14.3% presented reversible postoperative sensitivity. Recession was observed in 24% of dental posts, and 7.1% presented marginal discoloration. Treatment did not increase either Bleeding or Plaque Index scores at prepared teeth; secondary caries did not appear either. The restorations' survival rate at the 10-year follow-up was 71.4%; six FPDs had fractured and one debonded. Conclusions Fracture failure rate was 28.6% after 10 years; a high percentage corresponded to connector fractures and occurred during the first 5 years. Lithium disilicate glass-ceramic FPDs present a higher risk of fracture than standard therapies (metal-ceramic) or other more recently developed ceramic materials. The prognosis for survival improves for Class I occlusion and nonparafunctional patients. |
| Databáze: | OpenAIRE |
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