Rotational fatigue-resistance of seven post types anchored on natural teeth.

Rotational fatigue-resistance of seven post types anchored on natural teeth. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Rotational fatigue-resistance of seven post types anchored on natural teeth. Abstract Text:

H W Anselm Wiskott,Malika Meyer,Jean Perriard,Susanne S Scherrer,H W Anselm Wiskott,Malika Meyer,Jean Perriard,Susanne S Scherrer,

PURPOSE: To develop a laboratory model aimed at duplicating the failure process of post and core restorations. The load pattern applied was to be repetitive (fatigue) and multivectorial. To determine and compare the resistance under fatigue loading of seven endodontic post/natural root combinations: stainless steel-, titanium-, ceramic-, composite-fiber/epoxy-, two glass-fiber/epoxy- and glass-fiber/acrylic posts. MATERIALS AND METHODS: The repetitive, alternating and multivectorial intraoral force pattern was reproduced by subjecting the specimens to the rotating cantilever beam test. To this end, the samples were designed as rotation-symmetric structures comprising a root, a post, periodontal ligament- and bone analogs and a restoration analog. The following posts were tested: Unimetric-Ti, Unimetric-SS, Biopost, Composipost, Easypost, DT Lightpost, Everstickpost. The samples were spun around their long axes while being clamped into a revolving collet on one end and loaded normal to their long axis on the other end. The aim was to determine the load level at which 50% of the specimens survived- and 50% fractured before 10E6 cycles. The 50% means were determined using the staircase procedure. RESULTS: In increasing order of magnitude, the resistances to fatigue loading were as follows: Biopost, Unimetric-Ti, Unimetric-SS, Composipost, Easypost, Everstickpost, DT Lightpost. SIGNIFICANCE: The fatigue resistance of the two fibrous posts with the highest fatigue resistance was twice that of any of the ceramic or metal posts.

Rotational fatigue-resistance of seven post types anchored on natural teeth. Publishing Authors By Initials

HW Wiskott,M Meyer,J Perriard,SS Scherrer,HW Wiskott,M Meyer,J Perriard,SS Scherrer,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Rotational fatigue-resistance of seven post types anchored on natural teeth. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Dental materials : official publication of the Aca

VOLUME: 23

Page Numbers: 1412-9

Journal Abbreviation:

ISSN: 0109-5641

DAY: 30

MONTH: 01

YEAR: 2007

Rotational fatigue-resistance of seven post types anchored on natural teeth. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 8508040

Rotational fatigue-resistance of seven post types anchored on natural teeth. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Rotational fatigue-resistance of seven post types anchored on natural teeth. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Rotational fatigue-resistance of seven post types anchored on natural teeth.

AFFILIATION: Department of Prosthodontics-Biomaterials, School of Dental Medicine, University of Geneva, 19, rue Barthélemy-Menn, 1205 Geneva, Switzerland. anselm@wiskott.com

Country: England

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Dent Mater

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Rotational fatigue-resistance of seven post types anchored on natural teeth Related Publications

• Cromolyn and deep inspiration-induced bronchoconstriction.
• Detection of focal hepatic lesions with MR imaging: prospective comparison of T2-weighted fast spin-echo with and without fat suppression, T2-weighted breath-hold fast spin-echo, and gadolinium chelate-enhanced 3D gradient-recalled imaging.
• Hepatic cavernous hemangioma: appearance on T2-weighted fast spin-echo MR imaging with and without fat suppression.
• Insulin resistance in mice lacking neuronal nitric oxide synthase is related to an alpha-adrenergic mechanism.
• Low-frequency modulation of distortion product otoacoustic emissions in humans.
• MR diagnosis of hepatic metastases from neuroendocrine tumors versus hemangiomas: relative merits of dynamic gadolinium chelate-enhanced gradient-recalled echo and unenhanced spin-echo images.
• Messenger RNA in eukaryotic cells: the life history of duck globin messenger RNA.
• Monitoring climate at Jungfraujoch in the high Swiss Alpine region.
• Non-breath-hold fast spin-echo versus breath-hold fast spin-echo and spoiled gradient-recalled echo MR imaging in the detection of hepatic tumors: correlation with surgical findings.
• Pathogenesis of pulmonary edema: Learning from high-altitude pulmonary edema.
• Physiologic appraisal of a new rescue respirator with positive pressure.
• Rotational fatigue-resistance of seven post types anchored on natural teeth.
• Stimulation of the aortic and carotid chemoreceptor drive by low doses of chlorpromazine.
• Suggestions for an efficient documentation and information retrieval in an outpatient unit for respiratory diseases.
• Systemic side effects of beclomethasone dipropionate aerosols (becotide, aldecine, sanasthmyl) in otherwise non steroid treated asthmatic patients.
• T2-weighted spin-echo MR imaging of the liver: breath-hold fast spin-echo versus non-breath-hold fast spin-echo images with and without fat suppression.
• The efficacy of Neo-Biphyllin Retard in asthmatic patients--a theophylline slow-releasing coated tablet.
• [Broncho-active drugs]
• [Case no. 2. Atheroembolism of the kidney]
• [Extrinsic allergic alveolitis (author's transl)]
• [Is asthma caused by house dust or mites?]
• [Lung parenchymatic resistance in diffuse interstitial pulmonary fibrosis with alveolo-capillary block]
• [Non-obstructive pulmonary emphysema.]
• [Place of Cromolyn (Lomudal, Intal, Aarane) in the treatment-plan for bronchial asthma]
• [Protection of computer data about real people. The laws and their applications]
• [Some experiences with thiazinamium in bronchial asthma.]
• [The computer in the service of physicians, nurses and patients. 2.]
• [The computer serving physicians, nurses and patients. 1.]
• [The place of cromolyn (lomudal, intal, aarane) in the management of bronchial asthma (author's transl)]
• [Treatment of chronic obstructive lung disease (author's transl)]