نتایج جستجو برای: isq

تعداد نتایج: 275  

Journal: :Applied sciences 2023

Background: In orthodontic treatment, mini-screws can provide maximum anchorage conditions. If the miniscrew stability is compromised, this could jeopardize outcomes of treatment or biomechanics. Photobiomodulation therapy (PBMt) beneficial for biological tissues since it promotes wound healing with its anti-inflammatory and osteo-stimulatory properties. Objectives: The purpose study was to eva...

Journal: :journal of dentistry, tehran university of medical sciences 0
hamidreza barikani dental implant research center, tehran university of medical sciences tehran, iran. shadab rashtak dental implant research center, tehran university of medical sciences tehran, iran. soolmaz akbari dental implant research center, tehran university of medical sciences tehran, iran. samareh badri dental implant research center, tehran university of medical sciences tehran, iran. niloufar daneshparvar dental student, tehran university of medical sciences tehran, iran. amirreza rokn associated professor, dental implant research center and periodontics department, tehran university of medical sciences tehran, iran.

the focus of this paper is to evaluate the influence of mechanical characteristics of the implant on primary stability in different bone types, based on resonance frequency analysis (rfa).a number of 60 nobel biocare replace select tiunit tapered implants of two different lengths (10 mm and 13 mm) and three different widths as 3.4 mm (narrow platform (np)), 4.3 mm (regular platform (rp)) and 5 ...

2017
David E. Simmons Pooja Maney Austin G. Teitelbaum Susan Billiot Lomesh J. Popat A. Archontia Palaiologou

BACKGROUND The purpose of this study was to compare a parallel wall design implant to a tapered apex design implant when placed in the posterior maxilla using two different surgical protocols. METHODS Twenty-seven patients (30 implants) were divided into three groups. All implants were 4 mm wide in diameter and 8 mm long. Group A received 10 tapered implants (OSPTX) (Astra Tech OsseoSpeed TX™...

2014
Dennis Sheberla Lei Sun Martin A. Blood-Forsythe Süleyman Er Casey R. Wade Carl K. Brozek Alań Aspuru-Guzik Mircea Dinca

Reaction of 2,3,6,7,10,11-hexaaminotriphenylene with Ni in aqueous NH3 solution under aerobic conditions produces Ni3(HITP)2 (HITP = 2,3,6,7,10,11-hexaiminotriphenylene), a new two-dimensional metal−organic framework (MOF). The new material can be isolated as a highly conductive black powder or dark blue-violet films. Two-probe and van der Pauw electrical measurements reveal bulk (pellet) and s...

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