Results 101 to 110 of about 1,377,098 (387)

Polymerization Efficiency of Glass-Ionomer and Resin Adhesives under Molar Bands [PDF]

open access: yes, 2008
Objective: To determine the degree of cure of a light-cured resin-modified glass ionomer (RMGI) under molar bands compared with a light-cured resin and a dual-cured resin. Materials and Methods: The 3 cements used were Fuji Ortho LC, Eagle Spectrum resin,
Bradley, T. Gerard   +3 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

A Literature Review of Stainless Steel Crown for Permanent Molars: Indications, Survival, Periodontal and Radiographic Findings [PDF]

open access: yesJournal of Dentistry
Stainless steel crowns (SSCs) are the preferred choice for restoring primary molars with extensive caries. However, they may be indicated for permanent molars in certain cases as well.
Pooya Vatankhah   +2 more
doaj   +1 more source

Experimental Determination of the Absorption Cross-Section and Molar Extinction Coefficient of Colloidal CdSe Nanoplatelets

open access: yes, 2015
There has been a strong interest in solution-processed two-dimensional nanomaterials because of their great potential in optoelectronics. Here, the absorption cross-section and molar extinction coefficient of four and five monolayer thick colloidal CdSe ...
Aydan Yeltik   +5 more
semanticscholar   +1 more source

Characterization of mandibular molar root and canal morphology using cone beam computed tomography and its variability in Belgian and Chilean population samples

open access: yesImaging Science in Dentistry, 2015
Purpose This study used cone-beam computed tomography (CBCT) to characterize mandibular molar root and canal morphology and its variability in Belgian and Chilean population samples.
A. Torres   +6 more
semanticscholar   +1 more source

Union of maxillary second and third molar [PDF]

open access: yes, 1968
Pathological union is rare between permanent teeth. A case study of a male aged thirty, had pain and a swelling associated with two partly erupted permanent upper molars is described. An incision was made and the mucosa reflected.
Boffa, Charles J.
core  

Mechanisms of Increasing Weld Depth during Temporal Power Modulation in High‐Power Laser Beam Welding

open access: yesAdvanced Engineering Materials, EarlyView.
Temporal power modulation increases weld depth in high‐power laser beam welding of dissimilar round bars by nearly 20% compared to same average continuously welded welding power. The mechanism of action also applies to sheet welding and depends on the inertia of keyhole depth for the modulated laser beam power.
Jan Grajczak   +7 more
wiley   +1 more source

Fusion of the 2nd maxillary molar with the impacted 3rd molar

open access: yesBratislava Medical Journal, 2012
Subject matter: The dentist has to deal with complicated cases of fused molars, which are rather rare and morphologically very varied. A wrong or incomplete diagnosis can considerably complicate a planned therapy.The authors describe a case of apical periodontal complication of fused teeth that had to be removed surgically.
Tomáš Siebert   +2 more
openaire   +4 more sources

Treatment outcome and efficacy of an aligner technique – regarding incisor torque, premolar derotation and molar distalization

open access: yesBMC Oral Health, 2014
BackgroundThe aim of this study was to investigate the efficacy of orthodontic treatment using the Invisalign® system. Particularly, we analyzed the influence of auxiliaries (Attachment/Power Ridge) as well as the staging (movement per aligner) on ...
Mareike Simon   +4 more
semanticscholar   +1 more source

Fatigue resistance of new and used nickel-titanium rotary instruments: a comparative study [PDF]

open access: yes, 2018
Aim of the present study was twofold. First, to evaluate in vitro, the performance of two different NiTi rotary instruments in one molar case; then, to evaluate their resistance to cyclic fatigue, compared to new ...
Di Nardo, D   +7 more
core   +1 more source

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