Marginal Dye Microleakage in the Class V Composite Fillings Pre-treated by Different Dentin Bonding Agents

U radu se je na kompozitnim ispunima V. razreda ispitivalo brtvljenje postignuto različitim adhezijskim sustavima. Na bukalnim i palatinalnim stijenkama 12 ekstrahiranih intaktnih trećih molara napravljeni su kaviteti V. razreda. Ukupno 24 kaviteta podijeljeno je u četiri skupine. Prva je skupina prije unosa kompozita tretirana Gluma® 2000 adhezivom. Kaviteti druge skupine tretirani su Syntac adhezivom, treće skupine s Compoglass adhezivom, a zadnja je skupina bila kontrola. Uzorci su nakon polimerizacije ispuna termociklirani i uronjeni u vodootpornu tintu. Nakon kratkotrajne demineralizacije, ispuni su izvađeni iz mekanoga zubnog tkiva i rezultat je očitan mikroskopom te fo tografiran. Najmanji ukupni prodor boje očitan je kod Syntac (0,27 mm, SD 0,18) adheziva. Prodor boje kod Compoglassa adheziva iznosio je prosječno 0,77 mm (SD 0,30), kod Glume® 2000 0,85 mm (SD 0,25), a kod kontrolne skupine 0,88 mm (SD 0,38). Statistički vjerodostojna razlika zabilježena je između Syntaca i svih ostalih skupina.The aim of this study was to evaluate the variation in microleakage of Class V composite restorations pre-treated with three different dentin bonding agents. The 24 cavities were randomly divided into four groups. The cavity walls of the first group were covered by Gluma ® 2000, the walls of the second group were covered by Syntac and the third group by Compoglass adhesive. The fourth group was a control group. The marginal microleakage was examined by extension o f dye ink penetration under a light microscope. After partial demineralisation of the samples, the composite fillings were extracted from the cavities. The lowest dye penetration was found in cavities covered by Syntac (0.27 mm, SD 0.18) followed by Compoglass 0.77 mm, (SD 0.30). Gluma® 2000 showed dye penetration of 0.85 mm (SD 0.25), and f i nally the control group showed dye penetration o f 0.88 mm (SD 0.38). Prof.dr.sc. Ivica Anić Only Syntac showed statistically significant less dye penetration com- Zavod za bolesti zubi pared to the other experimental groups including the control