Influence of Preparation Reconstruction on the Compressive Strength of CADCAM Ceramic Inlays
Joint Authors
Baratieri, L. N.
Salamoni Sinhori, Bruna
Vieira, Luiz Clovis Cardoso
Source
International Journal of Biomaterials
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-01
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The aim of this study was to evaluate whether the compressive strength of lithium dissilicate ceramic inlays is influenced by the substrate (dentin or composite resin build-up) and to compare it to nonrestored teeth.
Thirty freshly extracted human maxillary third molars were selected and randomly ascribed to three groups (n=10).
Standardized Class II MOD preparations were made (bucco-palatal width = 2/3 of the intercuspal width and 2/3 of the width at the tooth equator for the proximal boxes), varying the extension of the preparations (Group 2: preparation limited to tooth structure; Group 3: pulpal floor of the preparation rebuilt with composite resin, IPS Empress Direct, restored with lithium dissilicate CAD/CAM ceramic inlays (e.max CAD) and cemented with a resin cement (Variolink II)).
All groups were subjected to compressive strength test (1mm/min crosshead speed).
The results showed that the fracture strength of G1 (control group) was significantly higher than G2 and G3, while within these groups there were no statistically significant differences.
Both groups restored with lithium dissilicate restorations did not reach the fracture strength of the sound teeth but were statistically equivalent and sufficient to withstand physiologic masticatory forces.
American Psychological Association (APA)
Salamoni Sinhori, Bruna& Vieira, Luiz Clovis Cardoso& Baratieri, L. N.. 2019. Influence of Preparation Reconstruction on the Compressive Strength of CADCAM Ceramic Inlays. International Journal of Biomaterials،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1158414
Modern Language Association (MLA)
Salamoni Sinhori, Bruna…[et al.]. Influence of Preparation Reconstruction on the Compressive Strength of CADCAM Ceramic Inlays. International Journal of Biomaterials No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1158414
American Medical Association (AMA)
Salamoni Sinhori, Bruna& Vieira, Luiz Clovis Cardoso& Baratieri, L. N.. Influence of Preparation Reconstruction on the Compressive Strength of CADCAM Ceramic Inlays. International Journal of Biomaterials. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1158414
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158414