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Susceptibility of methacrylate-based root canal filling to degradation by bacteria found in endodontic infections
clear zone degradation endodontic bacteria Resilon
2014/11/6
Objectives: To present a case of endodontic failure obturated with a methacrylate-based root filling material, Resilon/ RealSeal (RS). To determine if RS is susceptible to biodegradation by endodontic...
External cervical root resorption involving multiple maxillary teeth in a patient with hereditary hemorrhagic telangiectasia
hereditary hemorrhagic telangiectasia external root resorption
2014/11/6
Hereditary hemorrhagic telangiectasia (HHT) is an inherited syndrome characterized by mucocutaneous telangiectases that commonly involve the tongue, lips, fingers, and conjunctiva. While root resorpti...
FP Core Carrier Technique: Thermoplasticized Gutta-percha Root Canal Obturation Technique Using Polypropylene Core
Root canal filling Obturation technique Gutta-percha
2011/6/10
Core carrier techniques are unique among the various root canal filling techniques for delivering and compacting gutta-percha in the prepared root canal system. Thermafil (TF), considered the major co...
Factors Associated with Root Surface Caries in Elderly
Root surface caries Gingival recession Elderly
2010/12/1
The purpose of this study was to determine the risk factors for root surface caries in the elderly and to evaluate the factors associated with gingival recession, one of the main risk factors for root...
Removal of root canal filling materials using Er:YAG laser irradiation
Er:YAG laser Root canal retreatment Root canal filling material
2010/11/26
The purpose of this study was to examine the ability of Er:YAG laser to remove root canal filling materials. The root canals of 21 extracted human anterior teeth were enlarged, and then obturated with...
Root ZX根尖定位仪诊断牙根横折的实验研究
牙根横折 根尖定位仪 诊断
2010/9/15
目的研究Root ZX根尖定位仪是否能准确诊断牙根横折的存在。方法将20颗离体单根管上前牙形成牙根横折，用Root ZX根尖定位仪分别测量横折断端不分离、横折断端分离但断端内无印模材料、横折断端分离且断端内有印模材料3种情况下的根管长度，并与实际根管长度进行比较。结果在横折断端不分离、横折断端分离但断端内无印模材料2种情况下，根尖定位仪不能探测到横折位置；在横折断端分离且断端内有印模材料情况下，电...
Evaluation of bond strength of D.T.Light-post to root canal using dual-cure and self-cure resin cements after irrigation with various solutions
Bond strength Self-cure resin cement Dual-cure resin cement D.T.Light-post Degree of conversion
2009/12/17
Background and Aim: Nonmetallic tooth- colored posts adhere to canal walls by dentin bonding agents and resin cements. Better retention and proper distribution of stress result from enough and proper ...
Evaluation of fibronectin,type I collagen and TGF-ß expression by human periodontal ligament fibroblasts exposed to root end filling materials
Evaluation fibronectin type collagen TGF-ß expression human periodontal ligament fibroblasts filling materials
2009/12/7
Background and Aim: Several materials have been introduced for retrograde fillings, pulp capping and sealing root perforations, but their biological effect on vital tissues and cells is not clear. The...
Sealing ability of MTA,Super EBA,Vitremer and amalgam as root-end filling materials
Dental leakage Glass ionomer cements Zinc oxide-eugenol cement
2009/10/20
This study evaluated the root-end sealing ability of mineral trioxide aggregate (MTA Angelus), reinforced zinc oxide-eugenol cement (Super EBA), resin-modified glass ionomer (Vitremer) and zinc-free a...
Diffusion of calcitonin through the wall of the root canal
Dental cementum Tooth permeability Root canal irrigants Calcitonin
2009/10/20
The aim of this study was to evaluate the in vitro diffusion of synthetic salmon calcitonin (CT), used as an intracanal medication, to the external root surface, with or without the presence of intact...
Demineralization effect of EDTA,EGTA,CDTA and citric acid on root dentin:a comparative study
Chelating agent Citric acid Edetic acid Egtazic acid
2009/10/20
The purpose of this study was to biochemically compare the decalcifying effects of 1% EDTA (pH 7.4), 1% EGTA (pH 7.4), 1% CDTA (pH 7.4), 1% citric acid solutions (pH 1.0 and 7.4) and saline solution (...
Blood cell attachment to root surfaces treated with EDTA gel
Dental scaling Periodontics Blood Fibrin Smear layer
2009/10/19
Root debridement generates a smear layer which contains microorganisms and toxins that could interfere in periodontal healing. For this reason, different substances have been used to remove it and to ...
Influence of root embedment material and periodontal ligament simulation on fracture resistance tests
Fracture resistance Periodontal ligament Tooth root Cementoenamel junction
2009/10/19
The aim of this study was to evaluate the influence of the embedment material and periodontal ligament simulation on fracture resistance of bovine teeth. Eighty bovine incisor teeth were randomized in...
A scanning electron microscopic evaluation of different root canal irrigation regimens
Smear layer Root canal irrigants Chlorhexidine Ricinus communis
2009/10/19
The purpose of this study was to assess the effectiveness of endodontic irrigants in removing the smear layer from instrumented root canal walls using Scanning Electron Microscopy (SEM). The endodonti...
Dentin penetrability evaluation of three different dyes in root-end cavities filled with mineral trioxide aggregate (MTA)
Dental leakage Dyes Retrograde obturation
2009/10/19
The purpose of this study was to evaluate the penetration of three dyes in MTA root-end fillings. In 30 single-rooted teeth, cavities for retrofilling were prepared with an ultrasound appliance and fi...