Biomechanical Properties of Glass Ionomer Cement Used for Repair of Incudostapedial Joint Discontinuity

Year 2014, Volume: 18 Issue: 3, 152 - 156, 04.01.2015

Ahmet Ünal Aylin Bekem , Ela Server Zeynep Alkan Özgür Yiğit

Abstract

In this study, the biomechanical properties of glass ionomer cement used for repair of incudostapedial joint bridge in ear in two different distances was investigated. A master block was used to locate the incus and stapes with a 91 degree angle constant. Two experimental groups were composed according to the distances between incus and stapes which were adjusted as 1.0 and 2.0 mm. The mixture of bone cement was applied to the gap between incus and stapes and adhere them together. Compression tests were performed to these joints. Strength value of group 1 were found significantly higher than group 2 (p=0.042). The fragility of bone cement used in 2 mm gap was 25,5% higher compared to 1 mm gap

Keywords

Glass ionomer cement, Incus, Stapes, Compression, Fragility

Inkudostapedial Bağlantı Süreksizliklerinin Onarımında Kullanılan Cam İyonomer Çimentosunun Biyomedikal Özellikleri

Abstract

Bu çalışmada kulak içi inkudostapedial bağlantı köprüsünün iki farklı mesafede onarımında cam iyonomer çimentosunun biyomekanik özelliklerini incelenmiştir. İnkus ve stapesin 91 derecelik sabit bir açıda yerleştirilmesi için bir master blok kullanılmıştır. İki deney grubu, inkus ve stapes arasında 1,0 ve 2,0 mm mesafe olacak şekilde oluşturulmuştur. Kemik çimentosu karışımı inkus ve stapes arasındaki bu boşluğa dolduruluştur. Oluşan bu bağlantılara basma testi uygulanmıştır. Dayanım değerlerinin Grup 1’ de, Grup 2’ ye göre oldukça fazla olduğu bulunmuştur (p=0.042). Kırılganlık, 2,0 mm boşluğa uygulanan çimentoda 1,0 mm’ ye göre % 25,5 daha yüksek çıkmıştır. 

Keywords

Cam İyonomer Çimentosu, İnkus, Stapes, Basma, Kırılganlık

References

• Brask, T., 1999. Reconstruction of the Ossicular Chain in the Middle Ear With Glass Ionomer Cement. Laryngoscope, 109, 573-576.
• Geyer, G., Helms, J., 1992. Reconstruction of the Posterior Auditory Canal Wall Down and Obliteration of the Mastoid Cavity Using Glass Ionomer Cement. In: Yanagihara, N., Suzuki, J.L., eds. Transplant and Implants in Otology. edn 2. Amsterdam, Kugler, 165- 170.
• Goebel, J.A., Jacob, A., 2005. Use of Mimix Hydroxyapatite Bone Cement for Difficult Ossicular Reconstruction. Otolaryngology- Head and Neck Surgery, 132, 727-734.
• Mikaelian, D.O., 1986. Perichondrial-Cartilage Island Graft in
• Laryngoscope, 96, 237-239.
• Tympano-Ossiculoplasty. Muller, J., Geyer, G., Helms, J., 1994. Restoration of Sound Transmission in the Middle Ear by Reconstruction of the Ossicular Chain in its Physiologic Position. Results of Incus Reconstruction with Ionomer Cement. Laryngorhinootologie, 73, 160–163.
• Rondini-Gilli, E., Grayeli, A.B., Borges Crosara, P.F., El Garem, H., Mosnier, I., Bouccara, D., et al., 2003. Ossiculoplasty with Total Hydroxylapatite Prostheses Anatomical and Functional Outcomes. Otol Neurotol, 24, 543-547.
• Stea, S., Cervellati, M., Cavedagna, D., Savarino, L., Cenni, E., Pizzoferrato, A., 1998. Detection of Mutagenic Potention of Some Glass-İonomer Cements through Ames Testing. J.Mater. Sci. Mater. Med., 9, 141-146.