Precision of fit and clinical evaluation of all-ceramic full restorations followed between 0.5 and 5 years
| Autor: | A Van der Donck, Ludovic Beckers, Ignace Naert |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Dental Restoration Failure
Adult All ceramic Adolescent Esthetics Dentistry Clinical study Patient satisfaction Dental porcelain Dental Prosthesis Design Medicine Humans Life Tables General Dentistry Aged Orthodontics Coping (architecture) biology Crowns business.industry Dental Marginal Adaptation Middle Aged biology.organism_classification Dental Porcelain Patient Satisfaction Procera business Follow-Up Studies |
| Zdroj: | Journal of oral rehabilitation. 32(1) |
| ISSN: | 0305-182X |
| Popis: | Currently CAD-CAM systems are rapidly gaining importance in dental practice as some of their products aim to combine aesthetics with strength and are free of metals. This study reports on the crown adaptation, marginal fit and clinical behaviour of 300 all-ceramic full coverage restorations (Procera, Gothenburg, Sweden) placed in one clinical centre and followed up to 5 years. The marginal fit and coping adaptation before and after luting was determined by direct measurement as well as after sectioning in a laboratory study. Three hundred all-ceram restorations were installed in 165 patients between 1994 and 1998. Before the end of 2000, patients were recalled to assess their restorations, using the California Dental Association quality evaluation index, their own appreciation, as well as the reaction towards the periodontium. The in vitro data revealed a mean marginal adaptation of 30 microm, before and after luting of the Al(2)0(3)-coping onto the tooth. However, at the deepest part of the chamfer, the distance increased to 135 microm. In the clinical study only one restoration fractured, while in 6% small porcelain infractions occurred. After polishing the latter, no persistent patient complaints remained. At the last recall visit 1.8% of the margins were rated unacceptable. Dentists rated 72 and 78% of the restorations excellent for surface, colour and anatomic form respectively. Eighty-seven per cent of the patients rated their restorations more than 7/10 on an ordered analogue scale for aesthetics as well as for function. |
| Databáze: | OpenAIRE |
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