purpose: the aim of this study was to compare the effects of a) a flame heated endo plugger, b) gatesglidden drills and c) gpx drills on the apical seal for the purpose of post space preparation. materials & methods: the crowns of sixty six extracted maxillary central teeth were removed from cej by a diamond disc and the root canals were prepared and obturated with guttapercha and sealer (ah26)...

Endodontic management of the teeth with immature apices and necrotic pulps has always been challenging. Therefore fabrication of an artificial hard tissue barrier with a biomaterial has indicated as an alternative to more traditional apexification procedure. Successful endodontic treatment needs to prevent leakage of intracanal irritants into the peri radicular tissues. On the other hand, achie...

  Abstract Introduction: One-bottle light-cured adhesives systems have variable pH. In addition to ease of use, universal adhesives can be used in various restorations and different substrates. Due to the lack of studies, the purpose of this study was to compare the enamel and dentin micro-leakage of self-cure and light cure composite restorations using a universal bonding system. Materials...

introduction: in apical surgery, after apicoectomy and retro-preparation of canal, a retrofil material is applied to seal the apical region of the root canal. mineral trioxide aggregate (mta) is the gold standard material for this purpose. changing water/powder ratios of mta affects its properties. the purpose of this in vitro study was to determine the effect of liquid/powder ratio of retrofil...

statement of problem: chemo-mechanical caries removal is an effective alternative to the traditional rotary drilling method. one of the factors that can influence micro-leakage is the method of caries removal. objectives: to compare the micro-leakage of resin composite in primary dentition using self-etch and all-in one adhesives following conventional and chemo-mechanical caries removal. mater...

I) Introduction (II) Diseases of the Pulp (III) Controversies in the Management of Exposed Pulp in the Adult Tooth NATURE OF THE CONTROVERSY POTENTIAL FACTORS OF SIGNIFICANCE TO FAILURE OF PULP CAPPING RESEARCH DIRECTIONS INDIRECT PULP CAPPING—ALTERNATIVE TO DIRECT PULP CAPPING? (IV) Controversies in Endodontic Therapy NATURE OF THE CONTROVERSY SUCCESS AND FAILURE OF ENDODONTIC THERAPY CORONAL ...

The aim of this study was to investigate apical microleakage after use of the Resilon system in comparison with gutta-percha. The materials used were 54 mesial roots of mandibular molars with an apical curvature of 20-40 degrees . The root canals were instrumented with the Prosystem GT(R) and obturated with: Group I: Gutta-percha + Sealer by lateral condensation (n = 25); Group II: Gutta-percha...

OBJECTIVE To analyze possible correlations among tubular dentine cement penetration, adhesiveness and apical leakage in fillings performed with gutta percha and an endodontic cement based on epoxy amine resin. MATERIAL AND METHODS Sixty similar, extracted human mandibular central incisors were irrigated, instrumented and filled following the same protocol. First, apical leakage was quantified...