جستجوی مقالات مرتبط با کلیدواژه « post treatment modalities » در نشریات گروه « پزشکی »

Severely damaged teeth do not have enough crown structure to support the composite crown, then, using canal space has been suggested for retention. This study compared the fracture resistance of the primary anterior teeth restorations with severe destructions following irrigation protocols of post space with sodium hypochlorite and chlorhexidine with and without bur applying. In this invitro study 94 primary anterior teeth were selected. The root canal treatments were done, 4mm of the post space were left empty and 1mm of them were regarded as their bed. The post space was prepared with and without bur using and washing protocols were done with 0.2% chlorhexidine and 2.5% sodium hypochlorite. Composite posts were inserted in the canals and the crowns were restored. Following composite etching and light-curing, the fracture resistance of the restored teeth was determinated by UTM device. The effects of bur and washing protocols on fracture resistance were analyzed. When washing post space with sodium hypochlorite, fracture resistance of the teeth was 376.8+107.29 N and 475.5 +186.89 N without and with bur preparations. For the chlorhexidine protocols, the values were 370.88+175.46 N and 430.85+178.22 N without and with bur preparation respectively. The effect of irrigating material on the fracture resistance was not significant, however, the bur and irrigating preparation significantly increased the fracture resistance of the restored teeth (p=0.02). The post space irrigation with 0.2% chlorhexidine or 2.5% sodium hypochlorite did not significantly affect the fracture resistance of primary anterior teeth in post treatment modality.