AIM – The aim of this study was to evaluate marginal sealing ability of newly introduced Dyad Flow with total etch & self-etch adhesive system at the coronal and apical margins of class V resin composite restorations. MethodsA standard class V cavity (3 mm mesiodistal width, 3 mm occlusogingival height, and 1.5 mm axial depth) was prepared on the buccal surface of freshly extracted sound human ...

Apical periodontitis is an inflammatory lesion in the periodontal tissues that is caused mostly by bacterial elements derived from the infected root canal system of teeth (Core concept 7.1). In non-treated teeth apical periodontitis represents a defensive response to a primary infection in a necrotic pulp. Apical periodontitis may also develop due to a secondary infection subsequent to endodont...

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introduction: controversial results have been reported when organic acids, ultrasonic instruments and laser techniques were used to remove smear layer in endodontic treatments. the aim of this study was to evaluate the effect of removing debris and smear layer by er,cr:ysgg laser irradiation on the apical leakage of retrograde cavities. materials and methods: in this ex vivo study, 24 extracted...

Using K+-specific microelectrodes in the isolated retinal pigment epithelium preparation from frog eye, we have examined changes in extracellular K+ in the unstirred layer between the choroid and basal membrane. We found, using agents to depolarize apical and basal membranes, that membrane potential modulates K+ efflux from the basal membrane into the choroid. [K+] in the choroid was found to b...

INTRODUCTION Endodontic surgery is a valuable option for maintaining patient's natural dentition when previous orthograde endodontic treatments fail to succeed. Proper root-end preparation and placement of a retro-filling material are recommended for successful endodontic surgery. The objective of this experimental study was to compare sealing ability of Resilon/Epiphany system, as a potential ...

in order to deermine the effect of root canal cealer on microleakage of obturated root canal by lateral condensation technique(LCT) with and without tug-back(TB).seventy exteracted single root canal teeth were examined.after preparation of root canal with step-back technique,teeth were divided to six groups as follows:5 teeth as positive control group that obturated by LCT with gutta-perch itho...

Successful final restoration is important for the long term success of root canal treatment. A lack of adhesion in a final restoration could result in apical or coronal leakage that causes problems in the root canal treatment. Endodontically-treated teeth frequently require extensive restorations with post-core system. ABSTRACT The Influence of AH-26 and Zinc Oxide-Eugenol Root Canal Sealer on ...