Early complications and performance of 327 heat-pressed lithium disilicate crowns up to five years
The Journal of Advanced Prosthodontics
;
: 194-200, 2016.
Artículo
en Inglés
| WPRIM
| ID: wpr-153888
ABSTRACT
PURPOSE:
The prospective follow-up aimed to assess the performance of lithium disilicate crowns and clinical reasons of adverse events compromising survival and quality. MATERIALS ANDMETHODS:
58 patients were treated with 375 heat-pressed monolithic crowns, which were bonded with resin cement. Annual recalls up to five years included a complete dental examination as well as quality assessment using CDA-criteria. Any need for clinical intervention led to higher complication rate and any failure compromised the survival rate. Kaplan-Meier-method was applied to all crowns and a dataset containing one randomly selected crown from each patient.RESULTS:
Due to drop-outs, 45 patients (31 females, 14 males) with the average age of 43 years (range = 17–73) who had 327 crowns (176 anterior, 151 posterior; 203 upper jaw, 124 lower jaw) were observed and evaluated for between 4 and 51 months (median = 28). Observation revealed 4 chippings, 3 losses of retention, 3 fractures, 3 secondary caries, 1 endodontic problem, and 1 tooth fracture. Four crowns had to be removed. Survival and complication rate was estimated 98.2% and 5.4% at 24 months, and 96.8% and 7.1% at 48 months. The complication rate was significantly higher for root canal treated teeth (12%, P<.01) at 24 months. At the last observation, over 90% of all crowns showed excellent ratings (CDA-rating Alfa) for color, marginal fit, and caries.CONCLUSION:
Heat pressed lithium disilicate crowns showed an excellent performance. Besides a careful luting, dentists should be aware of patients' biological prerequisites (grade of caries, oral hygiene) to reach full success with these crowns.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Diente
/
Fracturas de los Dientes
/
Análisis de Supervivencia
/
Tasa de Supervivencia
/
Estudios Prospectivos
/
Estudios de Seguimiento
/
Recubrimiento Dental Adhesivo
/
Adaptación Marginal Dental
/
Cementos de Resina
/
Fracaso de la Restauración Dental
Tipo de estudio:
Estudio observacional
/
Estudio pronóstico
Límite:
Femenino
/
Humanos
Idioma:
Inglés
Revista:
The Journal of Advanced Prosthodontics
Año:
2016
Tipo del documento:
Artículo
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