Results 21 to 30 of about 43,020 (260)

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

Peri-implant stress distribution assessment of various attachment systems for implant supported overdenture prosthesis by finite element analysis – A systematic review

Journal of Oral Biology and Craniofacial Research, 2022
Background: Various attachments like ball, bar-clip, magnetic attachments are used in implant supported overdentures. Finite Element Analysis (FEA) a newly innovated technology has been used in dental implantology to evaluate stress distribution patterns.
Bappaditya Bhattacharjee, Ritu Saneja, Ankita Singh, Pavan Kumar Dubey, Atul Bhatnagar   +4 more
doaj   +1 more source

Complications associated with the ball, bar and Locator attachments for implant-supported overdentures

Medicina Oral Patología Oral y Cirugia Bucal, 2011
The purpose of this clinical study was to evaluate the complications associated with the different attachments used in implant-supported overdentures, including prosthetic problems and implant failures. A comparison of ball, bar and Locator (Zest Anchors, Inc, homepage, Escondido, CA, USA) attachments, in completely edentulous patients with two, three ...
Çakarer, Sirmahan, Can, Taylan, Yaltirik, Mehmet, Keskin, Cengizhan   +3 more
openaire   +3 more sources

Optimal Football Pressure as a Function of a Footballer’s Physical Abilities

Proceedings, 2018
Football is one of the most popular sports in the world. It is played by a diverse set of people, from little kids to professional athletes, who possess a large range of physical abilities and skill.
Andrew Christenson, Pei Cao, Jiong Tang
doaj   +1 more source

Interim Check and Compensation of Geometric Errors to Improve Volumetric Error of Machine Tools [PDF]

한국정밀공학회지, 2018
In the manufacture of mechanical components, volumetric errors of a machine tool should be checked and reduced to meet the required tolerance levels.
Seung-Han Yang, Hoon-Hee Lee, Kwang-Il Lee   +2 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

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