Zafer EVİS, Volkan ŞAHİN, Hossein JODATİ

Saklama Süresinin Uzatılmış Model Elde Etme Süresine Sahip İrreversible Hidrokolloid Ölçü Malzemelerinin Yırtılma Dayanımı Üzerine Etkisi

Amaç: Bu in-vitro çalışmanın amacı; uzatılmış saklama sürelerinin, uzatılmış model elde etme süresine sahip irreversible hidrokolloid ölçü malzemelerinin yırtılma dayanımı üzerine etkisini incelemektir. Materyal-Metot: Beş ticari (BluePrint Xcreme, Hydrogum 5, Kromopan, Alginmax ve Alginelle) ve bir özel formüle edilmiş uzatılmış model etme süresine sahip irreversible hidrokolloid ölçü malzemesi kullanılarak ISO 21563:2013 standartlarına uyumlu seksen dört adet numune hazırlanmıştır. Her bir ölçü malzemesine sait numuneler rastgele iki gruba ayrılmış (n=7) ve hemen veya 120 saatlik saklama süresi sonunda yırtılma testine tabi tutulmuşlardır. Yırtılma dayanımı değerleri N/mm cinsinden ifade edilmiş ve veriler iki yönlü varyans analizi testi (irreversible hidrokolloid markası, saklama süresi) kullanılarak analiz edilmiştir. Çoklu karşılaştırmalara, Tukey testi kullanılarak yapılmıştır (p=0.05). Bulgular: Uzatılmış model etme süresine sahip irreversible hidrokolloid ölçü malzemelerinin yırtılma dayanımları, irreversible hidrokolloid markası parametresi (p

Effect of Storage Time on Tear Strength of Extended-Pour Irreversible Hydrocolloid Impression Materials

Objective: The aim of this in vitro study was to evaluatethe effect of prolonged storage times on the tear strength ofextended-pour irreversible hydrocolloid impression materials.Material-Method: Eighty four specimens were fabricatedfrom five commercial extended-pour irreversiblehydrocolloid impression materials (BluePrint Xcreme,Hydrogum 5, Kromopan, Alginmax and Alginelle) as wellas one experimental formula in accordance with the ISO21563:2013 standard effective for irreversible hydrocolloidimpression materials. Specimens were randomly divided intwo groups for each impression material (n=7) and subjectedto tear strength test immediately (base line) or after 120 hoursof storage. Tear strength values were obtained in N/mm anddata were analysed with two-way ANOVA (irreversiblehydrocolloid brand, storage time). Multiple comparisonswere performed with Tukey’s test (p=0.05).Results: The tear strength of the extended-pour irreversiblehydrocolloid impression materials were affected by brand(p

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