| Full text | |
| Author(s): |
Juliano de Alencar Vasconcelos
[1]
;
Sabrina Maria Castanharo
[2]
;
Monica Estefania Tinajero Aroni
[3]
;
Raphael Ferreira de Souza Bezerra Araújo
[4]
;
Maria Silvia Mauricio Rigolin
[5]
;
Lucas Portela Oliveira
[6]
;
Francisco de Assis Mollo Júnior
[7]
Total Authors: 7
|
| Affiliation: | [1] São Paulo State University (UNESP). School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil
[2] São Paulo State University (UNESP). School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil
[3] São Paulo State University (UNESP). School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil
[4] São Paulo State University (UNESP). School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil
[5] São Paulo State University (UNESP). School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil
[6] São Paulo State University (UNESP). School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil
[7] São Paulo State University (UNESP). School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | Revista Cubana de Estomatología; v. 57, n. 4 2020-09-04. |
| Abstract | |
ABSTRACT Introduction: The passivity of prosthetic components is one of the most important prerequisites in oral implant rehabilitation for maintenance of osseointegration. Objective: Thus, the present study analyzed in vitro the accuracy of different molding techniques in prosthetic rehabilitation on angled implants installed in an anatomical model of a metallic edentulous maxilla. Methods: Laboratory experiment study. A reference metal model of an edentulous maxilla was used. A metal framework was used for the misadaptation assessment. Three groups (n= 10) were compared and impressions were made with vinyl-polysiloxane and casts were obtained with type IV stone: (1) Impression with a metallic open-tray without splinted transfers; (2) Impression with a metallic open-tray and metal splinted transfers; (3) Impression with a multifunctional guide and metal splinted transfers. Misadaptation was assessed with the aid of a stereomicroscope and measuring software. Data were submitted to ANOVA with Welch correction and the Games-Howell post-hoc test with the significance set at 5 %. Results: Misadaptation (µm) was 110,23 ± 30,94, 37,53 ± 3,92, and 37,69 ± 2,79 for the the groups. Statistically significant differences between impression with a metallic open-tray with and without splinted transfers were observed (p < 0,001). No significant differences between the other types of impression. Conclusions: Impression with a metallic open-tray without splinted transfers and with a multifunctional guide splinted with metal transfers were the most precise methods resulting in higher accuracy in transferred implants. (AU) | |
| FAPESP's process: | 11/07177-8 - Accuracy of impression techniques for an angulated implants in maxila |
| Grantee: | Juliano de Alencar Vasconcelos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |