Results 21 to 30 of about 46,051 (258)

Mandibular overdenture retained with precision balls and bar attachment

Stomatološki glasnik Srbije, 2022
Introduction Milled precision bar with the lateral additions of two precision attachments could significantly contribute to the primary and secondary retention of partial denture and overdenture. This clinical case demonstrates stability of mandibular overdenture using milled precision bar and two coronally positioned precision attachments. Case report
openaire   +3 more sources

بررسی توزیع تنش در طرح های مختلف اوردنچر متکی بر سه ایمپلنت به روش اجزای محدود [PDF]

Journal of Mashhad Dental School, 2014
مقدمه: به علت مشکلات دنچرها، امروزه اوردنچرهای متکی بر ایمپلنت رواج یافته‏اند. به رغم موفقیت بالای ایمپلنت، از دست رفتن ایمپلنت هنوز معضل اساسی است. افزایش نیروی وارد بر ایمپلنت فاکتور مهم تحلیل استخوان و از دست رفتن ایمپلنت می‏باشد. این مطالعه با آنالیز
اسداله احمدزاده, فرنوش گل محمدی, محمدعلی ناصری   +2 more
doaj  

Geometric Constraint of an Evolved Deployable Ball Mechanism

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2011
This paper presents a novel method based on the virtual sliders for constructing a deployable ball mechanism and reveals the geometric constraint of the 20-bar ball mechanism and the radially foldable linkage that were extracted from the Hoberman switch ...
Guowu WEI, Xilun DING, Jian Sheng DAI
doaj   +1 more source

Novel synthesis of LaH2 and La2O3 through mechanochemistry and sintering

South African Journal of Chemical Engineering, 2023
Some hydrogen storage materials have been created by a mechanochemical method utilizing ball milling and hydrogen gas. This study developed a novel method for employing hydrogen gas in a ball milling process followed by sintering to dissociate La(OH)3 ...
Satrio Herbirowo, Andika Widya Pramono, Hendrik Hendrik, Heri Nugraha, Vinda Puspasari, Agung Imaduddin, Martin C. Fatah, Eko Sulistiyo, Akhmad Herman Yuwono   +8 more
doaj   +1 more source

Clinical evaluation of retention and biting force in complete mandibular overdentures retained by two implants using a solitary ball and socket versus solitary bar and clip attachments: A crossover study

Mansoura Journal of Dentistry
Objectives: a clinical evaluation of retention and biting force in complete mandibular overdentures retained by two implants using a solitary ball and socket versus solitary bar and clip attachments.
Mohamed Ali Manaa, Khaled Mohamed Zahran, Hesham El-sharkawy, Ashraf Anwar Gebreel   +3 more
doaj   +1 more source

Retention and patient satisfaction with bar-clip, ball and socket and kerator attachments in mandibular implant overdenture treatment: An in vivo study

The Journal of Indian Prosthodontic Society, 2019
Aim: The aim of this in vivo study was to evaluate and compare the retention and patient satisfaction in implant supported mandibular overdenture with three different attachment system. Materials and Methods: After evaluation of prosthetic space, fifteen
Nitish Varshney, Sumit Aggarwal, Shalabh Kumar, S P Singh   +3 more
doaj   +1 more source

Peripheral Neutrophil Activation and Extracellular Trap Formation in Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
Markers of neutrophil activation are increased in plasma during ALS, and markers of NET formation associate with ALS survival. ABSTRACT Objectives Peripheral neutrophil levels in amyotrophic lateral sclerosis (ALS) inversely correlate with survival, suggesting a role for neutrophils in disease progression.
Lillia A. Baird, Haley McQuown, Jihyun Park, Samuel J. Teener, Ian F. Webber‐Davis, Andrew D. Carter, Dae‐Gyu Jang, Eva L. Feldman, Stephen A. Goutman, Benjamin J. Murdock   +9 more
wiley   +1 more source

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

Advanced 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, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Finite Element Study of Three Different Treatment Designs of a Mandibular Three Implant-Retained Overdenture

Latin American Journal of Solids and Structures
This study compares ball, bar-clip and bar-ball attachment systems for implant-retained mandibular overdentures with three implants. The first implant is placed in the middle of the mandible and the other two are imbedded in the first premolar regions ...
M. Shishesaz, A. Ahmadzadeh, A. Baharan
doaj   +1 more source

The Role of Ultra‐Thin Passive Films and Organic Adsorbates on Aluminum Chips for a Friction‐Induced Solid‐State Recycling Process

Advanced Engineering Materials, EarlyView.
Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller, Steffen Gabsa, Werner Homberg, Guido Grundmeier   +3 more
wiley   +1 more source