RAPID POLYMERIZATION AND ETCHING PROCEDURE EFFECT ON MICROLEAKAGE OF CLASS V RESTORATIONS

Background and Aim: This study aimed to investigate the effect of the rapid polymerization and etching procedure on microleakage scores of Class V restorations. Materials and Methods: Class V cavities were uniformly prepared by one operator in 60 bovine incisors. The specimens were randomly divided into six groups and restored as follows: Group 1: Selective enamel etching (SEE) + sixth-generation adhesive system (AS) + composite resin (CR) polymerized at 3200 mW/cm2 for 6 s. Group 2: SEE + sixth-generation AS + CR polymerized at 1000 mW/cm2 for 20 s. Group 3: No etching (NE) + sixth-generation AS + CR polymerized at 1000 mW/cm2 for 20 s. Group 4: NE + sixth-generation AS + CR polymerized at 3200 mW/cm2 for 6 s. Group 5: Total etching (TE) + fifth-generation AS + CR polymerized at 3200 mW/cm2 for 6 s. Group 6: TE + fifth-generation AS + CR polymerized at 1000 mW/cm2 for 20 s. After the thermal cycling procedure, all specimens were sectioned and microleakage scores were evaluated by two operators. The data were analyzed using Kruskal-Wallis and Mann-Whitney U tests (p= 0.05). Results: Gingival microleakage scores were found higher than incisal microleakage scores (p

HIZLI POLİMERİZASYON VE ASİTLEME PROSEDÜRLERİNİN SINIF V RESTORASYONLARININ MİKROSIZINTISINA ETKİSİ

Amaç: Bu çalışma, Sınıf V restorasyonların mikrosızıntı skorları üzerine hızlı polimerizasyon ve asitleme prosedürlerinin etkisini araştırmayı amaçladı. Gereç ve Yöntem: Sınıf V kaviteler bir klinisyen tarafından atmış sığır kesici dişine aynı şekilde hazırlandı. Örnekler rastgele altı gruba ayrıldı ve şu şekilde restore edildi: Grup 1: Selektif mine asitlemesi + 6. jenerasyon adeziv sistem + 3200mW/cm2 güçte 6 saniye polimerize edilen kompozit rezin. Grup 2: Selektif mine asitlemesi + 6. jenerasyon adeziv sistem + 1000mW/cm2 güçte 20sn polimerize edilen kompozit rezin. Grup 3: Asitleme yok + 6. jenerasyon adeziv sistem + 1000mW/cm2 güçte 20sn polimerize edilen kompozit rezin. Grup 4: Asitleme yok + 6. jenerasyon adeziv sistem + 3200mW/cm2 güçte 6sn polimerize edilen kompozit rezin. Grup 5: Total asitleme + 5. jenerasyon adeziv sistem + 3200mW/cm2 güçte 6sn polimerize edilen kompozit rezin. Grup 6: Total asitleme + 5. jenerasyon adeziv sistem + 10000mW/cm2 güçte 20sn polimerize edilen kompozit rezin. Termal yaşlandırma sonrasında bütün örnekler ortadan ikiye bölündü ve mikrosızıntı değerleri iki araştırmacı tarafından değerlendirildi. Veriler Kruskal Wallis ve Mann Whitney U testleri kullanılarak SPSS 16.0 bilgisayar programında analiz edildi (p= 0.05). Bulgular: Gingival mikrosızıntı değerleri insizal mikrosızıntı değerlerinden daha fazla bulundu (p

Kaynakça

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