Comparison of Conventional Methods and Laser-Assisted Rapid Prototyping for Manufacturing Fixed Dental Prostheses: An In Vitro Study
Joint Authors
Annibali, Susanna
Pompa, Giorgio
De Angelis, Francesca
Cristalli, Maria Paola
Di Carlo, Stefano
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-21
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
This study assessed whether there are differences in marginal fit between laser-fusion and conventional techniques to produce fixed dental prostheses (FDPs).
A master steel die with 2 abutments was produced to receive a posterior 4-unit FDPs and single copings.
These experimental models were divided into three groups ( n = 20 /group) manufactured: group 1, Ni-Cr alloy, with a lost-wax casting technique; group 2, Co-Cr alloy, with selective laser melting (SLM); and group 3, yttria-tetragonal zirconia polycrystal (Y-TZP), with a milling system.
All specimens were cut along the longitudinal axis and their adaptation was measured at the marginal and shoulder areas on the right and left sides of each abutment.
Measurements were made using a stereomicroscope (×60 magnification) and a scanning electron microscope (×800 magnification).
The data were analyzed using one-way analysis of variance and the Bonferroni post hoc test, with a significance cutoff of 5%.
Significant differences ( P < 0 .
05 ) were observed between group 3 and the other groups.
The marginal opening was smallest with Co-Cr alloy substructures, while the shoulder opening was smallest with Ni-Cr alloy substructures.
Within the limitations of this study, the marginal fit of an FDP is better with rapid prototyping (RP) via SLM than conventional manufacturing systems.
American Psychological Association (APA)
Pompa, Giorgio& Di Carlo, Stefano& De Angelis, Francesca& Cristalli, Maria Paola& Annibali, Susanna. 2015. Comparison of Conventional Methods and Laser-Assisted Rapid Prototyping for Manufacturing Fixed Dental Prostheses: An In Vitro Study. BioMed Research International،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1055032
Modern Language Association (MLA)
Pompa, Giorgio…[et al.]. Comparison of Conventional Methods and Laser-Assisted Rapid Prototyping for Manufacturing Fixed Dental Prostheses: An In Vitro Study. BioMed Research International No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1055032
American Medical Association (AMA)
Pompa, Giorgio& Di Carlo, Stefano& De Angelis, Francesca& Cristalli, Maria Paola& Annibali, Susanna. Comparison of Conventional Methods and Laser-Assisted Rapid Prototyping for Manufacturing Fixed Dental Prostheses: An In Vitro Study. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1055032
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1055032