Results 61 to 70 of about 70,266 (301)

Biomechanical evaluation of oversized drilling technique on primary implant stability measured by insertion torque and resonance frequency analysis [PDF]

, 2016
Background: This study evaluated the influence of implant site preparation depth on primary stability measured by insertion torque and resonance frequency analysis (RFA).
Brizuela Velasco, Aritza, Chento-Valiente, Yelko, Chávarri Prado, David, Diéguez Pereira, Markel, Fernández, Felipe J., Santamaría Arrieta, Gorka, Solaberrieta, Eneko, Vega Álvarez, José Antonio, Yurrebaso-Asua, Jaime   +8 more
core   +1 more source

Injectable Dual‐Network Hydrogel System for Osteochondral Repair Combining Immunomodulation, Mechanical Adaptability, and Enhanced Tissue Integration

Advanced Functional Materials, EarlyView.
A UV‐triggered injectable dual‐network hydrogel is reported as the first application of bletilla striata polysaccharide (BSP) in osteochondral repair. By integrating methacrylamide‐modified BSP and nitrobenzaldehyde‐functionalized hyaluronic acid, the system achieves immunomodulation, mechanical reinforcement, and dynamic tissue adhesion, thereby ...
Jiaming Cui, Feifei Zhou, Yuan Luo, Tao Ouyang, Huiwu Zhang, Songmiao Cheng, Qiang Li, Xu Jiang, Yingying Yu, Yicheng Wang, Hong Ming   +10 more
wiley   +1 more source

A sensory-guided surgical micro-drill [PDF]

, 2010
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2010 The Authors.This article describes a surgical robotic device that is able to discriminate tissue interfaces and other controlling ...
Brett, PN, Coulson, C, Du, X, Proops, D, Reid, A, Taylor, R   +5 more
core   +2 more sources

Unraveling Quantitative Sensing Mechanism and Predictive Molecular Metrics for High‐Performance OFET Amine Sensors

Advanced Functional Materials, EarlyView.
This study introduces a novel chloro boron subphthalocyanine/polymer blend OFET sensor achieving 0.005 ppb limit of detection for ammonia at room temperature and high selectivity against similar amines. An original theoretical framework is proposed to describe the sensing mechanism, relating analyte molecular volume and Lewis basicity to sensor ...
Kavinraaj Ella Elangovan, Matthew P. Confer, Rui Zhang, Siqing Wang, Jeffrey S. Moore, Rohit Bhargava, Ying Diao   +6 more
wiley   +1 more source

Drill-bit upper limit temperature calculation when drilling bones in orthopedic surgery

Biotechnology & Biotechnological Equipment
The orthopedic manipulation of bone drilling is performed during the osteosynthesis of bone fractures. It is characterized by a set of input and output parameters.
Tony Boiadjiev, George Boiadjiev, Ivan Chavdarov, Kamen Delchev, Rumen Kastelov   +4 more
doaj   +1 more source

Thermal osteonecrosis and bone drilling parameters revisited

Archives of Orthopaedic and Trauma Surgery, 2007
During the drilling of the bone, the temperature could increase above 47 degrees C and cause irreversible osteonecrosis. The result is weakened contact of implants with bone and possible loss of rigid fixation. The aim of this study was to find an optimal condition where the increase in bone temperature during bone drilling process would be minimal ...
Augustin, Goran, Davila, Slavko, Mihoci, Kristijan, Udiljak, Toma, Vedrina, Denis Stjepan, Antabak, Anko   +5 more
openaire   +3 more sources

Histological Analysis of Failed Cartilage Repair after Marrow Stimulation for the Treatment of Large Cartilage Defect in Medial Compartmental Osteoarthritis of the Knee [PDF]

, 2013
Bone marrow-stimulating techniques such as microfracture and subchondral drilling are valuable treatments for full-thickness cartilage defects. However, marrow stimulation-derived reparative tissues are not histologically well-documented in human ...
Abe, Nobuhiro, Furumatsu, Takayuki, Miyazawa, Shinichi, Ozaki, Toshifumi, Sakata, Kenichiro, Sakoma, Yoshimasa   +5 more
core   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Heat Generation During Guided Bone Drilling: Bone Trephine Versus Pilot Drill

Lubricants
In the last decade, the use of surgical guides in dentistry has expanded to include endodontic surgery, yet most studies have focused on accuracy rather than potential heat generation. This in vitro study evaluated heat generation during bone drilling with custom-made bone trephines, both with and without static surgical guides, and compared the ...
Gábor Pintér, Gábor Braunitzer, Eszter Nagy, Kristóf Boa, József Piffkó, Mark Adam Antal   +5 more
openaire   +2 more sources

On the development of a new flexible drill for orthopedic surgery and the forces experienced on drilling bovine bone [PDF]

, 2018
This article presents the construction of a flexible drill which is designed to cut a curved canal in the bone or remove bone materials, to improve the outcome of orthopedic surgery and to facilitate minimally invasive. This article reports the design of
Ahmad Fuad, Ahmad Nazmi Bin, Deep, Kamal, Rowe, Philip, Yao, Wei   +3 more
core   +1 more source