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Biomechanical strength of glass ionomer cement in incudostapedial rebridging

Published online by Cambridge University Press:  19 February 2015

E A Server ,
Z Alkan ,
O Yigit ,
E Acioglu ,
A Bekem ,
A Unal  and
S M Akkin
E A Server*
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Istanbul Training and Research Hospital, Istanbul, Turkey
Z Alkan
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Istanbul Training and Research Hospital, Istanbul, Turkey
O Yigit
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Istanbul Training and Research Hospital, Istanbul, Turkey
E Acioglu
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Istanbul Training and Research Hospital, Istanbul, Turkey
A Bekem
Affiliation:
Department of Metallurgy and Material Engineering, Faculty of Chemical-Metallurgy, Yildiz Technical University, Istanbul, Turkey
A Unal
Affiliation:
Department of Metallurgy and Material Engineering, Faculty of Chemical-Metallurgy, Yildiz Technical University, Istanbul, Turkey
S M Akkin
Affiliation:
Department of Anatomy, SANKO Medical School, Gaziantep, Turkey Department of Anatomy, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
*
Address for correspondence: Dr Ela Araz Server, Tahtakale Mah. Ispartakule Evleri T:29 sok., Agaoglu Sitesi C Blok Daire: 30, Avcılar, İstanbul 34325, Turkey E-mail: [email protected]
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Abstract

Objective:

To study the biomechanical properties of glass ionomer cement used for incudostapedial rebridging.

Methods:

Two groups were established based on the size of the gap between the incus and stapes (1.0 mm in group 1 and 2.0 mm in group 2). Glass ionomer cement was applied to the gaps, and compression tests were performed. Maximum force was measured at the fracture point, and was divided by the cross-sectional area to obtain the maximum compressive strength.

Results:

No significant difference was found in the maximum force for the two groups (p = 0.312). The glass ionomer cement diameter was significantly higher in group 2 than in group 1 (p = 0.006). The maximum compressive strength was significantly higher in group 1 than in group 2 (p = 0.042).

Conclusion:

The fragility of bone cement used in this study was 25.5 per cent higher for a 2 mm gap than for a 1 mm gap. We speculate that the use of bone cement may be safer for the repair of smaller incudostapedial defects.

Keywords

Bone CementsIncusStapes
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 129 , Issue 2 , February 2015 , pp. 148 - 154
Copyright
Copyright © JLO (1984) Limited 2015 

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Footnotes

This study was presented as a poster at the Joint Meeting of Anatomical Societies, 19–22 May 2011, Bursa, Turkey.

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