BASAMAK TİPİ VE KONİKLİK AÇISININ LİTYUM DİSİLİKAT CAM SERAMİKLERİN BASKI DAYANIMINA ETKİSİNİN DEĞERLENDİRİLMESİ
Autor: | L.İhsan Aladağ, Hatice Özdemir |
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Rok vydání: | 2018 |
Předmět: | |
Zdroj: | Volume: 28, Issue: 4 545-552 Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi |
ISSN: | 1300-9044 2667-5161 |
DOI: | 10.17567/ataunidfd.473965 |
Popis: | Amac: Bu calismanin amaci, farkli basamak tipi ve koniklik acisinin lityum disilikat cam seramiklerin baski dayanimina olan etkisini degerlendirmektir. Gerec ve Yontem: Baski dayanikliligi testi icin farkli basamak tipi (chamfer ve shoulder) ve 2 farkli koniklik acisinda (6° ve 12°) 40 adet metal day hazirlandi. Metal day uzerine IPS e.max Press ornekler simante edildikten sonra baski testi uygulandi. Bulgular: Veriler Varyans analizi (ANOVA) ile degerlendirildi ve sonuclar istatistiksel olarak onemli bulunmustur (p=0.00). 12° konik acili shoulder basa- mak tipli ornekler en yuksek (3534.40±159.50 MPa), 6° konik acili chamfer ornekler ise en dusuk (2281.28± 171.31 MPa) baski dayanimi degerlerini gostermistir. Sonuc: Koniklik acisi ve basamak tipinin farkli olmasi IPS e.max Press' in baski dayanimini etkilemektedir. Anahtar Kelimeler: Lityum disilikat cam seramik, baski dayanimi, basamak, koniklik acisi EVALUATION OF THE EFFECT OF MARGINAL DESIGN AND TAPER ANGLE ON THE FRACTURE STRENGTH OF LITHIUM DISILICATE GLASS CERAMICS ABSTRACT Aim: The aim of this study was to evaluate the effect of different margin designs and taper angel on fracture strength of lithium disilicate glass ceramics. Materials and Methods: A total of 40 metal die samples with different margin designs (shoulder and chamfer) and two different taper angel (6° ve 12°) were prepared for fracture strength test. Fracture force was applied after IPS e.max Press samples was cemented to the metal dies. Results: The data were analyzed with ANOVA and the results were statistically significant (p=0.00).. The samples with 12° taper angle and shoulder margin design showed the highest fracture strength (3534.40±159.50 MPa), the samples with 6° taper angle and chamfer margin design showed the lowest fracture strength (2281.28±171.31 MPa). Conclusion: Different taper angle and margin design effect the fracture strength of IPS e.max Press. Keywords: Lithium disilicate glass ceramic, fracture strength, margin design, taper angle |
Databáze: | OpenAIRE |
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