Dentin Hassasiyet Giderici Ajanlarýn Dentin-Adeziv Siman Baðlantýsýna Etkisi: Ýn-Vitro Çalýþma

GÝRÝÞ ve AMAÇ: Periodental tedavi, kýrýk, restoratif uygulamalar, çürük gibi nedenlerle koruyucu tabakanýn kalkmasý sonucu dentin tübülleri açýða çýkýp diþte hassasiyet oluþunca hassasiyet giderici ajanlardan yararlanýlýr. Çalýþmamýzýn amacý; postoperatif diþ hassasiyetini gidermek için kullanýlan hassasiyet giderici ajanlarýn, adeziv simantasyondaki baðlantýya etkisini incelemektir.
YÖNTEM ve GEREÇLER: 16 adet çürüksüz çekilmiþ 3. molar diþler rastgele 8’li iki gruba ayrýlmýþtýr. Tüm deney örnekleri eþit ölçülü kaplarda hazýrlanmýþtýr. PMMA bazlý soðuk akril içerisine diþler yerleþtirildi. Diþlerin okluzal yüzeyinde mine tabakasý keskin frez ile kaldýrýlarak dentin tabakasý açýða çýkartýldý. 1. gruptaki örneklere önce Gluma Desensitizer ve Gluma self etch bonding; sonra 4 mm çapýnda 3 mm yükseklikte silindir formunda SEcure adeziv siman uygulandý. 2. Gruptaki örneklere ise önce Teethmate Desensitizer ve Clearfil universal bonding; sonra 4 mm çapýnda 3 mm yükseklikte silindir formunda SEcure adeziv siman uygulandý. Dentin örneklere termal siklus uygulandý. Hemen ardýndan örneklere üniversal test cihazýnda makaslama testi uygulandý. SEM incelenmesi ile desteklenerek elde edilen veriler istatiksel olarak deðerlendirildi.
BULGULAR: Teethmate Desensitizer hassasiyet giderici ajanýnýn makaslama dayanýmý deðeri Gluma ajanýna göre daha düþük bulundu. Her iki grup arasýnda istatistiksel fark anlamlýdýr.
TARTIÞMA ve SONUÇ: Gluma hassasiyet giderici ajan Teethmate Desensitizer’e göre daha yüksek baðlanma deðeri gösterdi. Her 2 grup içinde SEM analizinde koheziv kýrýklar tespit edildi.

Effect of Dentýn Desensitizing Agents on Dentin-Adhesive Cement Bonding: An In-Výtro Study

INTRODUCTION: Desensitizing agents are used when sensibilty occurs in a dentin tubules of the dent due to the fact that some reasons such as periodontal surgery, fracture, restorative applications, decay causes leaving of the protective layer. The aim of the study is to research the effect that link is in adhesive cementation of dentin desensitizing agent, which use to desensitizate prosperative dental.
METHODS: In this study, sixteen intact human third molar teeth were used. The teeth were randomly divided into two different groups.(n: 8) All samples were emmbeded into PMMA-based acrylic resin. The occlusal enamel tissues of teeth were removed to expose occlusal dentin. In the first group, firstly Gluma Desensitizer was applied to dentin surfaces according to manufacturer’ instruction. Gluma self etch was applied to dentin surfaces according to manifacturers’ instructions. SEcure adhesive cement applied to dentin surface by means of cylindrical tubes. In the second group, firstly Teethmate Desensitizer was applied to dentin surfaces according to manufacturer’ instruction. Clearfil universal bonding (Kuraray Medical Inc, Japan) was applied to dentin surfaces according to manifacturers’ instructions. SEcure adhesive cement applied to dentin surface by means of cylindrical tubes. Shear bond strength test were performed by using Universal Tension/Compression Testing Machine (Instron 3382, USA).
RESULTS: The shear bond strength values of Teethmate Desensitizer groups were found statistically lower than the Gluma desensitizer groups (p<0.05). There was statistically significant difference between the groups
DISCUSSION AND CONCLUSION: In this study, Gluma desensitizer shearbond strength values higher than Teethmate desensitizer. For both group, it is determined cohesive fractures in the SEM analysis.