نتایج جستجو برای: pulp chamber

تعداد نتایج: 61147  

2017
López Carmen Mendoza Asunción Solano Beatriz Yáñez-Vico Rosa

INTRODUCTION To present and discuss the results of five clinical cases treated using the revascularization protocol, showing clinical and radiographic monitoring. Necrotic immature teeth with periapical pathology present a challenge to dentists because the techniques used in apexification leave the tooth susceptible to fracture, since the root does not continue to grow in length and the canal w...

Journal: :Bio-medical materials and engineering 2015
Dangxiao Wang Siming Zhao Teng Li Yuru Zhang Xiaoyan Wang

To evaluate the fidelity of the iDental system and investigate its utility and performance on simulated drilling operations, user studies consisting of objective and subjective evaluations were performed. A voxel-based drilling simulation sub-system in the iDental system was employed for evaluation. Twenty participants were enrolled to take part in the experiments and were divided into two grou...

Journal: :Joint, bone, spine : revue du rhumatisme 2013
Béatrice Bouvard Yves Gallois Erick Legrand Maurice Audran Daniel Chappard

UNLABELLED Glucocorticoid (GC) treatment is the main cause of secondary osteoporosis. There are some controversies about the relationships between alveolar bone loss and bone loss at the appendicular and axial skeleton. OBJECTIVE To assess, in parallel, the effects of GCs on alveolar bone and on the tibia in a mice model. METHODS Five-month-old male Swiss-Webster mice were randomized into t...

2016
Akiko Haruyama Atsushi Kameyama Junji Kato Shinji Takemoto Yutaka Oda Eiji Kawada Toshiyuki Takahashi Masahiro Furusawa

This study evaluated the microtensile bond strength (μTBS) of 1-step self-etch adhesives (1-SEAs) and 2-step self-etch adhesives (2-SEAs) to pulp chamber dentin immediately after bleaching with 2 types of common bleaching techniques. Pulp chamber dentin of bovine teeth was bleached using 30% hydrogen peroxide (H2O2) solution with quartz-tungsten-halogen light-curing unit (Group 1) and 3.5% H2O2...

2014
Eren İşman Rıdvan Okşayan Oral Sökücü Serdar Üşümez

The use of lasers has been suggested for orthodontists to fabricate or repair orthodontic appliances by welding metals directly in the mouth. This work aimed to evaluate the temperature changes in the pulp chamber during welding of an orthodontic wire to an orthodontic molar band using Nd : YAG laser in vitro. A freshly extracted human third molar with eliminated pulpal tissues was used. J-type...

Journal: :Journal of endodontics 1986
R A Kopczyk C J Cunningham H Abrams

Intracanal medications have historically played an important role in root canal therapy. Their purpose is to establish an antimicrobial environment within the pulp chamber (1). The root canal system may contain significant types and numbers of organisms that cause acute exacerbations, delay treatment procedures, and retard or prevent healing. Although mechanical instrumentation and frequent irr...

2013
Sleiman R Ghorayeb Upen S Patel A Damien Walmsley Ben A Scheven

BACKGROUND Low-intensity ultrasound is considered an effective non-invasive therapy to stimulate hard tissue repair, in particular to accelerate delayed non-union bone fracture healing. More recently, ultrasound has been proposed as a therapeutic tool to repair and regenerate dental tissues. Our recent work suggested that low-frequency kilohertz-range ultrasound is able to interact with dental ...

2009
Rafael Francisco Lia Mondelli Sérgio Kiyoshi Ishikiriama Otávio de Oliveira José Mondelli

OBJECTIVES This in vitro study evaluated the fracture resistance of weakened human premolars (MOD cavity preparation and pulp chamber roof removal) restored with condensable resin composite with and without cusp coverage. MATERIAL AND METHODS Thirty human maxillary premolars were divided into three groups: Group A (control), sound teeth; Group B, wide MOD cavities prepared and the pulp chambe...

Journal: :Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi 2012
Liana Aminov Mihaela Moscalu Anca Melian Mihaela Salceanu T Hamburda Maria Vataman

UNLABELLED Root perforation is an unwanted incident which may occur at any stage of endodontic treatment and can adversely affect tooth prognosis. AIM To compare the recovery rate after treatment of root perforations in the interradicular area of the molars, using two different materials: MTA and ceramic nanoparticles mineral cement DiaRoot BioAggregate, by a clinical-radiological and statist...

Journal: :International endodontic journal 2011
J K Park S H Nam H C Kwon A A H Mohamed J K Lee G C Kim

AIM To investigate the effect of nonthermal atmospheric pressure plasma on intracoronal tooth bleaching in blood stained human teeth. METHODOLOGY Forty extracted single-root and blood stained human teeth were used. The teeth were randomly divided into two groups (n=20): group 1 received 30% HP activated by nonthermal atmospheric pressure plasma in the pulp chamber for 30 min, whilst group 2 r...

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