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Comparative accuracy of new implant impression technique using abutments as impression copings with an angulated implant model / 대한치과보철학회지
The Journal of Korean Academy of Prosthodontics ; : 201-208, 2008.
Artículo en Coreano | WPRIM | ID: wpr-226231
ABSTRACT
STATEMENT OF

PROBLEM:

A new implant impression technique which use abutments as impression coping, and use resin cement as a splinting material was described. Accuracy of this technique was compared with conventional closed tray and resin splinted open tray technique for a 15degrees angled 3-implant model MATERIAL AND

METHODS:

A dental stone master model with 3 linearly positioned implant analogue and a reference framework which was passively fitted to it were fabricated. The center analogue was perpendicular to the plane of model and the outer analogues had a 15degrees angulation forward or backward. 10 closed tray impressions, 10 resin splinted open tray impressions, 10 abutment-resin framework cementation impressions and 10 abutment-metal framework cementation impressions were made with additional silicone material and poured with dental stone. A light microscope with image processing was used to record the vertical gap dimension between reference framework and analogue of duplicated cast made with each 4 impression techniques. Statistical analysis used one-way ANOVA with post-hoc tests Tukey test of .05 level of significance

RESULTS:

Significant difference in the vertical gap dimension was found between closed tray technique; 74.3 (+/-33.4)micrometer and resin splinted open tray technique, and two other new technique. (P>.05) Abutment-metal framework cementation technique;42.5 (+/-11.9)micrometer was significantly different from resin splinted open tray technique. (P.05)

CONCLUSION:

Within limitations of this study, the accuracy of implant level impressions of resin splinted open tray technique was superior to that of closed tray technique. A new technique using abutment and metal framework cementation was more accurate than resin splinted open tray technique.
Asunto(s)

Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Siliconas / Férulas (Fijadores) / Cementación / Cementos de Resina / Luz Idioma: Coreano Revista: The Journal of Korean Academy of Prosthodontics Año: 2008 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Siliconas / Férulas (Fijadores) / Cementación / Cementos de Resina / Luz Idioma: Coreano Revista: The Journal of Korean Academy of Prosthodontics Año: 2008 Tipo del documento: Artículo