نتایج جستجو برای: discolored teeth

تعداد نتایج: 36678  

2014
Yong-Wook Cho Sung-Ho Park

When a tooth shows discoloration and does not respond to the cold test or electric pulp test (EPT) after a traumatic injury, its diagnosis can be even more difficult due to the lack of proper diagnostic methods to evaluate its vitality. In these case reports, we hope to demonstrate that ultrasound Doppler might be successfully used to evaluate the vitality of the tooth after trauma, and help re...

Journal: :Journal of endodontics 2011
Ilya Belobrov Peter Parashos

INTRODUCTION A number of vital pulp therapy techniques have been recommended to preserve pulp vitality in teeth with complicated crown fractures, especially in young patients. Calcium hydroxide has been the gold standard as a pulp capping material, but recently mineral trioxide aggregate (MTA) has been recommended. This case report describes the treatment of tooth discoloration caused by white ...

Journal: :Journal of dental education 2001
J P Simmer J C Hu

The nature of tooth enamel is of inherent interest to dental professionals. The current-day clinical practice of dentistry involves the prevention of enamel demineralization, the promotion of enamel remineralization, the restoration of cavitated enamel where demineralization has become irreversible, the vital bleaching of dental enamel that has become discolored, and the diagnosis and treatment...

Journal: :Brazilian oral research 2006
Daniel Araki Ribeiro Mariângela Esther Alencar Marques Daisy Maria Fávero Salvadori

Dental bleaching is a simple and conservative procedure for aesthetic restoration of vital and non-vital discolored teeth. Nevertheless, a number of studies have demonstrated the risk of tissue damage from the contact of these agents with the oral mucosa. In the current study, the genotoxic potential associated with exposure to dental bleaching agents was assessed by the single cell gel (comet)...

Journal: :Journal of the American Dental Association 2011
Daniel Edelhoff Oliver Brix

BACKGROUND Encompassing a vast array of materials, today's all-ceramic systems are suitable for a large range of indications in almost all areas of fixed restorative dentistry. METHODS The authors describe five clinical cases involving different indications to illustrate the use of different ceramic materials and combinations of materials. They describe the collaboration between the dentist a...

Journal: :Brazilian dental journal 2004
Tatjana Dostalova Helena Jelinkova Devana Housova Jan Sulc Michal Nemec Mitsunobu Miyagi Aldo Brugnera Junior Fatima Zanin

This study describes a preclinical investigation with laser-activated bleaching agent for discolored teeth. Bleaching techniques involve a broad-spectrum approach utilizing hydrogen peroxide (3-38%) with or without heat or laser, carbamide peroxide (10-30%), or a mixture of sodium perborate and hydrogen peroxide. Extracted human maxillary central incisors were selected. In the bleaching experim...

Journal: :journal of dental research, dental clinics, dental prospects 0
renu tanwar sgt university vipul jaitly associate professor esic dental college rohini aadya sharma sgt university rashmi heralgi associate profesosr new horizon dental college munish ghangas sgt university ankur bhagat sgt university

hyperdontia or supernumerary teeth in both arches without any syndromic manifestation are extremely rare. supernumerary teeth are commonly associated with gardner’s syndrome, cleft lip and palate, cleidocranial dysplasia and trichorhinophalangeal syndrome. five cases of non-syndromic multiple premolars of maxillary and mandibular arches in indian patients are presented here. this case series re...

Journal: :journal of dentistry, tehran university of medical sciences 0
k. ashofteh yazdi a. jafari

statement of problem: knowledge of internal anatomy of tooth plays an important role in a successful endodontics treatment. for a proper endodontic treatment, it is not only important to know the form of normal anatomy of tooth’s interior but one must also be acquainted with the possible diverse forms. purpose: a thorough understanding of the internal anatomy of human mandibular incisors (centr...

Journal: :Chemical communications 2016
Di Chao Tong-Xin Liu Nana Ma Pengling Zhang Zheng Fu Jinliang Ma Qingfeng Liu Fengjin Zhang Zhiguo Zhang Guisheng Zhang

A novel Ag(I)-induced three-component annulation reaction of [60]fullerene with sulfonylhydrazones and nitriles has been developed for the efficient synthesis of diverse disubstituted [60]fullerene-fused dihydropyrroles. The reaction exhibits a broad substrate scope and excellent functional-group tolerance, and also allows for the synthesis of fullerene-bound macromolecules.

Journal: :Journal of international oral health : JIOH 2013
Ks Madhu Swaroop Hegde Sylvia Mathew DA Lata Shilpa H Bhandi Shruthi N

BACKGROUND Non vital bleaching is simple, conservative procedure for esthetic correction of discolored endodontically treated teeth. The aim of this study was to determine and compare the amount of peroxide leakage from four different bleaching agents i.e superoxol, sodium perborate, combination of superoxol & sodium perborate and carbamide peroxide during intracoronal bleaching, as the safe an...

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