Assessment of the fracture strength of straight and pre-angled (17°) zircon im-plant abutments supported CAD-CAM zerconium restoration : an in (vitro study)
Joint Authors
Abd al-Ghafur, Zardasht N.
Daham, Ala Y.
al-Salman, Talal H.
Source
Issue
Vol. 16, Issue 1 (31 Dec. 2016), pp.77-83, 7 p.
Publisher
University of Mosul College of Dentistry
Publication Date
2016-12-31
Country of Publication
Iraq
No. of Pages
7
Main Subjects
Abstract EN
evaluate the effect of abutment angulation on fracture strength of pre-fabricated zircon implant ab-utment supported CAD\CAM zircon crown.
Material and methods: Ten analog with 3.75×14mm were placed into resin blocks divided in to 2 groups: group A (n=5) parallel to long axis and group B (n = 5) fixed at angulation (17°) to long axis.
Then ten abutments were tightened to 25 N/cm2.
Ten full anatomic zircon (CAD/CAM) crowns constructed as upper right central incisor: 5 on each group.
After luting all crowns with dual cure resin-based luting, all samples passed to artificial aging using thermocycling ma-chine, 500 cycles at (5 to 55 C°±2) degree.
Then the load was applied by universal testing machine at 30 degree to the long axis until fracture occurred.
Results: Statistical analysis showed that the implant abut-ment angulations significantly (p < 0.05) reduced the fracture resistance of zircon implant abutment.
Con-clusions : Within the limitation of this in vitro study it may be concluded that: the fracture strength of zircon implant abutment supported CAD\CAM zircon crown is significantly reduced in respect to the angulation fromstraight to angulated (17°) zircon abutment.
American Psychological Association (APA)
Abd al-Ghafur, Zardasht N.& al-Salman, Talal H.& Daham, Ala Y.. 2016. Assessment of the fracture strength of straight and pre-angled (17°) zircon im-plant abutments supported CAD-CAM zerconium restoration : an in (vitro study). al-Rafidain Dental Journal،Vol. 16, no. 1, pp.77-83.
https://search.emarefa.net/detail/BIM-903883
Modern Language Association (MLA)
Abd al-Ghafur, Zardasht N.…[et al.]. Assessment of the fracture strength of straight and pre-angled (17°) zircon im-plant abutments supported CAD-CAM zerconium restoration : an in (vitro study). al-Rafidain Dental Journal Vol. 16, no. 1 (2016), pp.77-83.
https://search.emarefa.net/detail/BIM-903883
American Medical Association (AMA)
Abd al-Ghafur, Zardasht N.& al-Salman, Talal H.& Daham, Ala Y.. Assessment of the fracture strength of straight and pre-angled (17°) zircon im-plant abutments supported CAD-CAM zerconium restoration : an in (vitro study). al-Rafidain Dental Journal. 2016. Vol. 16, no. 1, pp.77-83.
https://search.emarefa.net/detail/BIM-903883
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 82-83
Record ID
BIM-903883