The effect of rinsing time periods on wettability of elastomeric impression materials: in vitro study

Year 2016, , 24 - 9, 01.01.2016

Özlem Acar , Selim Erkut

https://doi.org/10.17214/aot.78173

Abstract

OBJECTIVE: The aim of this study was to determine whether different rinsing time periods affected the wettability of polymerized elastomeric impression materials.

MATERIALS AND METHOD: Panasil Contact Plus (PCP), Panasil Contact Non-Surfactant (PCNS), Panasil Initial Contact (PIC), Express (EXP) and Impregum (IMP) impression materials were tested. Standardized samples were rinsed with water for 10 s, 15 s or 20 s, and the wettability was determined by contact angle measurement through an evaluation period of 60 seconds (n=7). Non-rinsed groups were used as control. Measurements were made at 5 time points (at 0, 6, 15, 30 and 60 seconds). Kruskal Wallis test and Conover’s multiple comparison tests were used for all multiple comparisons. Bonferroni adjustment was applied for controlling Type I error (p<0.002).

RESULTS: Rinsing 10 s, 15 s or 20 s significantly reduced the wettability of the impression materials PCP, PIC and EXP (p<0.002). However, wettability of the impression materials PCNS and IMP did not significantly change after rinsing (p>0.002).

CONCLUSION: Rinsing the surfactant-containing polyvinylsiloxane impression materials decreased their wettability, whereas no such effect was seen for the surfactant free polyvinylsiloxane and polyether impression materials.

Keywords

Dental impression materials, polymerization, wettability

Yıkama süresinin elastomerik ölçü materyallerinin ıslanabilirliği üzerine etkisi: in vitro çalışma

Abstract

AMAÇ: Farklı yıkama sürelerinin polimerize olmuş elastomerik ölçü materyallerinin ıslanabilirlik değerleri üzerindeki etkisini değerlendirmektir.

GEREÇ VE YÖNTEM: Panasil Contact Plus (PCP), Panasil Contact Sürfaktansız Deney Materyali (PCNS), Panasil Initial Contact (PIC), Express (EXP) ve Impregum (IMP) ölçü materyalleri değerlendirildi. Ölçü yüzeylerin ıslanabilirliği, 10 sn, 15 sn ve 20 sn sürelerince su ile yıkanan örnekler üzerinde temas açısı ölçüm cihazı kullanılarak ölçüldü (n=7). Ölçüm süresi 60 sn idi. Kontrol grubunda yıkama yapılmadı. Ölçümler 5 noktada yapıldı (0, 6, 15, 30 ve 60. saniyeler). Kruskal Wallis testi ve tüm olası çoklu karşılaştırmalar için Conover Çoklu Karşılaştırma testi kullanıldı. Tip I hatayı kontrol etmek amacıyla Bonferroni düzeltmesi yapıldı (p<0.002).

BULGULAR: Farklı yıkama sürelerinin (10 sn, 15 sn ve 20 sn) PCP, PIC ve EXP ölçü materyallerinin ıslanabilirlik değerlerinde istatistiksel olarak azalmaya neden olduğu (p<0.002), IMP ve PCNS ölçü materyallerinde ise etkili olmadığı görüldü (p>0.002).

SONUÇ: Yıkama işleminin sürfaktan içeren polivinilsiloksan ölçü materyallerinin ıslanabilirliğinin azalmasına neden olduğu, sürfaktan içermeyen polivinilsiloksan ölçü materyali ve polieter ölçü materyalinde ise etkili olmadığı sonucuna ulaşıldı.

Keywords

Dental ölçü materyalleri, ıslanabilirlik, polimerizasyon

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