نتایج جستجو برای: dentinal tubules

تعداد نتایج: 14345  

Journal: :Journal of applied oral science : revista FOB 2004
César Augusto Galvão Arrais Daniel Chi Ngai Chan Marcelo Giannini

The aim of this study was to evaluate the features of dentinal tubules occlusion following application of three commercially available desensitizing agents: potassium oxalate-based / Oxa-Gel (OX), HEMA and glutaraldehyde-based / Gluma Desensitizer (GD) and acidulated phosphate fluoride-based / Nupro Gel (AF). Buccal cervical areas of twenty-four extracted human third molars were smoothed and we...

Journal: :Journal of endodontics 2008
Tung B Bui J Craig Baumgartner John C Mitchell

The combination of sodium hypochlorite (NaOCl) and chlorhexidine (CHX) forms a precipitate. The aim of this study was to evaluate the effect of irrigating root canals with a combination of NaOCl and CHX on root dentin and dentinal tubules by using the environmental scanning electron microscope (ESEM) and a computer program (Photoshop CS2). Forty-four extracted single-rooted human teeth were ins...

Journal: :The journal of contemporary dental practice 2001
P L Jacobsen G Bruce

Dentin hypersensitivity is a common condition of transient tooth pain associated with a variety of exogenous stimuli. There is substantial variation in the response to such stimuli from one person to another. Except for sensitivity associated with tooth bleaching or other tooth pathology, the clinical cause of dentin hypersensitivity is exposed dentinal tubules as a result of gingival recession...

Journal: :Critical Reviews in Oral Biology & Medicine 2002

2018
Yahui Wang Siyi Liu Yanmei Dong

This study aimed to evaluate the dentinal tubule penetration and filling quality of a bioceramic sealer (iRoot SP). Forty-two roots of extracted adult lower incisors were selected. After instrumentation with Protaper Universal to F3, 40 roots were chosen and randomly divided into 4 groups, as follows: iRoot SP single cone group, iRoot SP warm vertical group, AH Plus single cone group, and AH Pl...

Journal: :The Journal of Nihon University School of Dentistry 1980
Y Toda M Shirato K Tohnai H Fujii S Iesato S Takehana A Ito

It is generally accepted that a certain change occurs in teeth containing a vital pulp as a response to such injuries as caries, attrition and abrasion. In these cases dentinal tubules are filled with gaseous substances. In ground sections the groups of dentinal tubules, appearing black in transmitted light, have been named dead tracts by FisH[1-3]. However, there are few reports on the observa...

2017
Yeon-Jee Yoo Yoo Sang Lee Jun Sang Yoo Hiran Perinpanayagam Chang Seon Yoo Hyen Sug Kang Soram Oh Seok Woo Chang Kee-Yeon Kum

This case report describes intratubular biomineralization in root canal, filled with calcium-enriched material after 8 years of clinical maintenance. The schematic findings of dentinal tubules were investigated with scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The root canal obturation material was closely adapted to root dentin surface, suggesting the possibilit...

2013
Surabhi Joshi Ashwini Shivananje Gowda Chintan Joshi

PURPOSE In this study, the effect of calcium sodium phosphosilicate (NovaMin) desensitizing agent, which is a powder-based system, and hydroxyethyl methacrylate and glutaraldehyde (Gluma desensitizer), which is liquid-based system, on dentinal tubule occlusion was analyzed by scanning electron microscope. The effects of the above two along with one control group were compared to determine the m...

Journal: :Journal of clinical and diagnostic research : JCDR 2015
Mahak Jain Anurag Singhal Anuraag Gurtu Vineet Vinayak

BACKGROUND Ultrasonic irrigation has been proved for its remarkable cleaning efficiency in the field of endodontics. But its role in endodontic re-treatment has been understated. There is not much data available to understand the effect of ultrasonic irrigation for the evaluation of cleanliness of dentinal tubules when it is used with or without chloroform, a gutta percha solvent during endodon...

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