نتایج جستجو برای: dentinal tubules

تعداد نتایج: 14345  

Journal: :iranian endodontic journal 0
masoud parirokh department of endodontics, dental school, kerman university of medical sciences, kerman, iran mohammad jafar eghbal department of endodontics, dental research center, shaheed beheshti university of medical sciences, tehran, iran saeed asgary department of endodontics, iranian center for endodontic research, dental school, shaheed beheshti university of medical sciences, tehran, iran. jamileh ghoddusi department of endodontics, dental school, mashhad university of medical sciences, mashhad, iran sally stowe facility coordinator, electron microscope unit, australian national university, canberra, australia farshid forghani department of endodontics, dental school, kerman university of medical sciences, kerman, iran

introduction : this study was carried out to investigate the effect of 808nm diode laser irradiation on dentinal tubules of root canal wall. materials and methods: twelve single-rooted teeth were used. after cleaning and shaping with rotary instruments by the crown down technique, the smear layer was removed by alternating irrigation with edta and sodium hypochlorite. the teeth were then random...

Journal: :journal of lasers in medical sciences 0
hanieh nokhbatolfoghahaie laser research center of dentistry (lrcd), school of dentistry, tehran university of medical sciences, tehran, iran nasim chiniforush laser research center of dentistry (lrcd), school of dentistry, tehran university of medical sciences, tehran, iran sima shahabi laser research center of dentistry (lrcd), school of dentistry, tehran university of medical sciences, tehran, iran abbas monzavi laser research center of dentistry (lrcd), school of dentistry, tehran university of medical sciences, tehran, iran

introduction: the aim of this study was to investigate the scanning electron microscope (sem) analysis of tooth surface irradiated by different parameters of er:yag laser. methods: 15 caries-free extracted human third molars were used in this study. the teeth were put into 5 groups for laser irradiation as follows: group 1 (power: 2.5 w, energy: 250 mj); group 2(power: 3 w, energy: 300 mj); gro...

2015
Tianda Wang Sheng Yang Lei Wang Hailan Feng

The occlusion of dentinal tubules is an effective method to alleviate the symptoms caused by dentin hypersensitivity, a significant health problem in dentistry and daily life. The in situ mineralization within dentinal tubules is a promising treatment for dentin hypersensitivity as it induces the formation of mineral on the sensitive regions and occludes the dentinal tubules. This study was car...

2008
A. F. Marzuki

Alizarin red, confocal laser scanning microscopy, dentinal tubules, human caries. Abstract Dentin morphology and the lesion found in dental caries have been studied for many years. It was first observed under optical microscopy, and later using electron microscopy. Confocal laser scanning microscopy (CLSM) applied with several fluorescent dyes such as alizarin red to see normal dentinal tubules...

Journal: :journal of lasers in medical sciences 0
reza birang torabinejad dental research center and department of periodontic, school of dentistry, isfahan university of medical sciences, isfahan, iran. jaber yaghini torabinejad dental research center and department of periodontic, school of dentistry, isfahan university of medical sciences, isfahan, iran. elham fakhari torabinejad dental research center and department of periodontic, school of dentistry, isfahan university of medical sciences, isfahan, iran. seyed mohsen hasheminia torabinejad dental research center and department of endodontics, school of dentistry, isfahan university of medical sciences, isfahan, iran. maryam mousavi school of dentistry, isfahan university of medical sciences, isfahan, iran. mahnaz farhadzadeh school of dentistry, isfahan university of medical sciences, isfahan, iran.

introduction: various methods have been used for the treatment of dentine hypersensitivity such as dentifrices, sealants and different types of lasers. the aim of this study was to evaluate the effect of neodimium:yttrium-aluminium-garnet (nd:yag) laser in association with graphite on the dentin morphologic changes. methods: in this experimental in vitro study, 16 freshly extracted third molars...

Journal: :Pesquisa odontologica brasileira = Brazilian oral research 2002
Luciane Ribeiro de Rezende Sucasas da Costa Ii-Sei Watanabe Marcia Consentino Kronka

The diameter and density of coronal dentinal tubules were assessed in non-erupted human deciduous incisors. Using liquid nitrogen, frozen samples were fractured in longitudinal and oblique directions and observed by means of a Jeol JSM-6100 scanning electron microscope. It was observed that the diameter of dentinal tubules ranged from 0.50 to 1.94 micrometers and increased significantly from th...

2014
Saad Al-Nazhan Alaa Al-Sulaiman Fellwa Al-Rasheed Fatimah Alnajjar Bander Al-Abdulwahab Abdulhakeem Al-Badah

OBJECTIVES This in vitro study aimed to investigate the ability of Candida albicans (C. albicans) and Enterococcus faecalis (E. faecalis) to penetrate dentinal tubules of instrumented and retreated root canal surface of split human teeth. MATERIALS AND METHODS Sixty intact extracted human single-rooted teeth were divided into 4 groups, negative control, positive control without canal instrume...

2015
Dongyeop X. Oh Ekavianty Prajatelistia Sung-Won Ju Hyo Jeong Kim Soo-Jin Baek Hyung Joon Cha Sang Ho Jun Jin-Soo Ahn Dong Soo Hwang

Dental hypersensitivity due to exposure of dentinal tubules under the enamel layer to saliva is a very popular and highly elusive technology priority in dentistry. Blocking water flow within exposed dentinal tubules is a key principle for curing dental hypersensitivity. Some salts used in "at home" solutions remineralize the tubules inside by concentrating saliva ingredients. An "in-office" opt...

2007
Masoud Parirokh Mohammad Jafar Eghbal Saeed Asgary Jamileh Ghoddusi Sally Stowe Farshid Forghani Arash Shahravan

INTRODUCTION This study was carried out to investigate the effect of 808nm diode laser irradiation on dentinal tubules of root canal wall. MATERIALS AND METHODS Twelve single-rooted teeth were used. After cleaning and shaping with rotary instruments by the crown down technique, the smear layer was removed by alternating irrigation with EDTA and sodium hypochlorite. The teeth were then randoml...

Journal: Nanomedicine Journal 2020
Abdolmajid Bayandori Moghaddam Roya Asaadi Roya Bahmani Shabnam Aghayan

Objective(s): The present study aimed to assess the in-vitro efficacy of nanoparticulate calcium sodium phosphosilicate mouthwash in the obstruction of dentinal tubules.Materials and Methods: This in-vitro, study was conducted on 120 sections obtained from extracted human premolars, which were etched with citric acid for two minutes and rinsed with distilled water. Afterwards, the section...

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