Results 91 to 100 of about 229,970 (193)

Efficient all-optical wavelength conversion scheme based on a saw-tooth pulse shaper [PDF]

open access: yes, 2009
We experimentally demonstrate the use of saw-tooth optical pulses, generated using a superstructured fiber Bragg grating, to achieve high performance and efficient all-optical wavelength conversion in a scheme based on cross-phase modulation in a highly ...
Ibsen, M.   +3 more
core   +1 more source

Preference for using posts to restore endodontically treated teeth: findings from a survey with dentists

open access: yesBrazilian Oral Research, 2015
The aim of this study was to evaluate if clinical experience, whether in relation to length of practice time and/or level of specialization influences the dentist’s preference for using posts to restore endodontically treated teeth.
Rafael SARKIS-ONOFRE   +3 more
doaj   +1 more source

Mineral Trioxide Aggregate Apical Plug Method for the Treatment of Nonvital Immature Permanent Maxillary Incisors: Three Case Reports

open access: yes, 2012
Treatment of nonvital immature permanent teeth with calcium-hydroxide is associated with some difficulties such as weakened tooth fracture, root canal reinfection and long treatment time.
Güneş, B.   +3 more
core   +1 more source

NON-VITAL TOOTH BLEACHING

open access: yes, 2019
Introduction: Staining and discoloration of anterior teeth is a cosmetic problem that is often the patient’s chief complaint. Despite the availability of various restorative procedures, Discoloration can often be corrected totally or partially by a more ...
farah ziad adel ramadan, Safaa Mohammed Rizk Alhertani, Omnya Ali Alghamdi, Hanin Mohammed Fuad , Maha Fawaz Alnufaiei
core   +1 more source

Apexification Management of Mandibular Second Premolar with a Blunderbuss Apex and Periapical Lesion of an Adult Patient

open access: yesCase Reports in Dentistry, 2019
Apexification is widely applied in teenager patients but rarely used in the adult population. Instead, artificial apical barrier with mineral trioxide aggregate (MTA) is clinically accepted, and spontaneous apical closure in nonvital immature teeth of ...
Chenshuang Li   +6 more
doaj   +1 more source

Apexification of an Immature Permanent Incisor with the Use of Calcium Hydroxide: 16-Year Follow-Up of a Case

open access: yesCase Reports in Dentistry, 2015
Apexification is a process of forming a mineralized apical barrier and had been performed by using calcium hydroxide paste, due to its biological and healing performances in cases of existent trauma.
Camila Maggi Maia Silveira   +3 more
doaj   +1 more source

Finite element modelling and load share analysis for involute worm gears with localised tooth contact [PDF]

open access: yes, 2001
A new approach has been developed by the authors to estimate the load share of worm gear drives, and to calculate the instantaneous tooth meshing stiffness and loaded transmission errors. In the approach, the finite element (FE) modelling is based on the
Gentle, CR, Su, D, Yang, F
core  

Regeneration of Pulp and Radicular Tissues in a Nonvital Avulsed Tooth with Open Apex: A Case Report

open access: yesInternational Journal of Clinical Pediatric Dentistry
The management of avulsed immature teeth poses a significant challenge to clinicians, as prolonged dry time before reimplantation may lead to replacement resorption or ankylosis.Recent studies have shown promising results with the use of an intracanal proprietary pharmaceutical preparation, followed by sealing of the orifice with mineral trioxide ...
Rathi, Nilesh   +4 more
openaire   +2 more sources

Effect of nonvital tooth bleaching on resin/enamel shear bond strength.

open access: yesThe journal of adhesive dentistry, 2003
This study evaluated the effect of nonvital tooth bleaching on shear bond strength (SBS) of the composite resin/bovine enamel interface at different periods of time after bleaching.Three hundred twenty teeth were randomly divided into four groups according to bleaching agent: SPH: sodium perborate and 30% hydrogen peroxide; SPW: sodium perborate and ...
Erica Cappelletto Nogueira, Teixeira   +3 more
openaire   +1 more source

Home - About - Disclaimer - Privacy