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4- MET A SOĞUK AKRİLİK PROTEZ KAİDE REÇİNESİNİN PROTEZ KAİDE METALİNE BAĞLANMA DAYANIMI

BOND STRENGTH OF SELF-CURE 4-META ACRYLIC DENTURE BASE RESIN TO METAL DENTURE BASE

Journal Name:

  • İstanbul Üniversitesi Diş Hekimliği Fakültesi Dergisi

Publication Year:

  • 1994

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Chemical bonding of poly (methyl methacrylate) (PMMA) denture base resin to metal denture base was reported to be possible with addition of 4-META (4-methacrylox-yethyl trimellitate anhydrate) to monomer. In this study tensile bond strength of self-cure 4-META PMMA (Metaplast) and conventional self-cure PMMA (Meliodent) to a cobalt chromium denture base alloy (Wironit) was investigated. Three different surface preparations were: 1-electro-etched, 2- sandblasted and 3- retention mesh design (simulating cast framework). Specimens were stressed using Instron machine at Imm/min rate and bond strength values (kg.f) and failure types were recorded. Data were analysed using one-way ANOVA and t test (p<0.05). The highest mean bond strength value was seen when 4-Meta bonded with retention mesh (111.33 kg.f/cm2) and this was not statistically different from the mean value of 4-META bonded with sandblasted group (100.77 kg.f/cm2). The bond strength of 4-META was higher than Meliodent when bonded to, with retention mesh and sandblasted surfaces. It was concluded that, the bond strength of self-cure 4-META PMMA to the sandblasted metal bases was as sufficient as it is bond strength to the retention mesh of partial dentures.
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Abstract (Original Language): 
Monomerine 4-META (4-metakriloksietİl trimellitat an-hidrat) katılmış olan akrilİk reçinelerin, metal protez kaidesine kimyasal olarak bağlanabildiğini bildiren araştırmalar bulunmaktadır. Bu çalışmada Metaplast isimli 4-META içeren soğuk tamir akriliğinin krom kobalt protez kaide metaline (Wironit) bağlanma dayanımı konvansiyonel soğuk akrilik Meliodent ile karşılaştırılarak çekme gerilimi ile incelenmiştir. Üç farklı bağlanma yüzeyi: 1-elektro "etching" yapılmış, 2-kumlanmış ve 3-retansiyon ağı ilave edilmiş yüzeylerdir. İnstron test cihazında 1 mm/dak'lık hız ile gerilim uygulanmış ve bağlanma dayanımları (kg.f) ile kopma şekilleri kaydedilmiştir. Verilerin analizi tek yönlü ANOVA ve t testi ile yapılmıştır (p<0.05). 4-META reçine en yüksek bağlanma dayanımını retansiyon ağı ile (111.33 kg.f/cm2) göstermiş, bu değer kumlanmış grubun değerinden (100.77 kg.f/cm2) istatistiksel olarak farklı bulunmamıştır. 4-META akrilik reçine, yüzeyi kumlanmış ve retansiyon ağı olan gruplarda Meliodent'den anlamlı olarak yüksek bağlanma değerleri göstermiştir. Sonuçlar, 4-META soğuk akrilik reçinenin, iskelet protezlerde retansiyon ağına olduğu kadar kumlanmış metal kaideye de yeterli bağlanma sağlayabileceğini göstermiştir.
FULL TEXT (PDF): 
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