Results 121 to 130 of about 232,450 (222)

Composite holes by spiral milling at low stiffness have higher accuracy

Jin'gangshi yu moliao moju gongcheng, 2018
To solve the problems of machining composite components, such as narrow space, poor accessibility and low accuracy, electroplated diamond abrasives are used to spirally drill the material at low stiffness based on micro-edge cutting principle ...
GAO Hang, YAO Shunming, BAO Yongjie, LIU Xuchao   +3 more
doaj  

Autologous Mastoid Cortex Bone Graft for Multilayer Repair of Lateral Skull Base Defects. [PDF]

Laryngoscope
Multilayer repair of lateral skull base cerebrospinal fluid leaks and encephaloceles can be reinforced with rigid autologous grafts. Harvesting a monocortical mastoid cortex bone graft is effective and easy to implement without conferring additional morbidity.
Wen CZ, Fong DC, Bzhilyanskaya V, Kaufman AC, Hertzano R, Eisenman DJ.   +5 more
europepmc   +2 more sources

Influence of different manufacturing materials on the accuracy and fitting of full‐arch restorations using a photogrammetry scanner—In vitro study

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study aimed to assess the accuracy of a photogrammetry scanner and evaluate the influence of four different manufacturing materials on the accuracy and fitting of full‐arch restorations made using a photogrammetry scanner. Materials and Methods A cast with six implant abutment analogs was made.
Paulo Sergio Borella, Abidiel Silva Guimaraes, Thais Silva Mendonça, Gus Khalil, Sandra Al‐Tarawneh, Lyndon F. Cooper, Gustavo Mendonça   +6 more
wiley   +1 more source

Enamel surface roughness after debonding of orthodontic brackets and various clean-up techniques.

Frontiers in Dentistry, 2013
This study aimed to evaluate enamel roughness after adhesive removal using different burs and an Er:YAG laser.The buccal surfaces of forty human premolars were sealed by two layers of nail varnish, except for a circular area of 3 mm in diameter on the ...
Farzaneh Ahrari, Majid Akbari, Javad Akbari, Ghahraman Dabiri   +3 more
doaj  

Implementing 3D‐printed indexing devices and contemporary scanning techniques for complete‐arch implant‐supported rehabilitations: A clinical case report

Journal of Prosthodontics, EarlyView.
Abstract A sixty‐eight‐year‐old male presented to the dental clinic seeking a complete mouth rehabilitation. He exhibited generalized dental caries, dental staining, cervical lesions, fremitus, and anterior wear. After declining tooth‐retaining options, he elected full‐mouth extractions with immediately loaded implant‐supported prostheses.
Francisco X. Azpiazu‐Flores, Metavi Phuckdeedindan, Abdullah M. Aldosari, Chao‐Chieh Yang, Dean Morton, Wei‐Shao Lin   +5 more
wiley   +1 more source

What is the changing frequency of diamond burs? [PDF]

J Adv Prosthodont, 2018
Emir F, Ayyildiz S, Sahin C.
europepmc   +1 more source

Bond strength of simplified-step adhesives to enamel prepared with two different diamond burs

, 2004
Background: Self-etching primers are reported to produce considerable etching on flat enamel surfaces. However, little is known about the influence of different enamel surface textures.
Koase K., Kawamoto C., Sevgican F., Sano H., Inoue S., Ikeda T.   +5 more
core   +1 more source

Adjustment of CAD–CAM crowns with and without a 3D‐printed model: Comparative study of marginal fit

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated and compared the marginal fit of CAD–CAM zirconia crown copings with and without a 3D‐printed control model. Materials and Methods This prospective in vitro trial involved 30 zirconia crown copings made from the same STL file. These were divided into two groups.
Marwan Al Akkad, Bedirhan Savas Yigit, Iva Voborna, Vaclav Prokupek, Oluwafunmibi Fasanya, Thomas Salinas, Radek Mounajjed   +6 more
wiley   +1 more source

Does treatment‐induced surface roughness of 3 mol% yttria‐stabilized tetragonal zirconia polycrystals influence the wear of opposing restorative materials? An in vitro study

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study aimed to investigate whether different surface treatments applied to 3 mol% yttria‐stabilized tetragonal zirconia polycrystals (3Y‐TZP), with comparable mean roughness (Ra) values, result in comparable values of additional surface roughness parameters, and to evaluate the influence of zirconia surface topography on vertical ...
Aline Stieper, Sebastian Wille, Matthias Kern, Maximiliane Amelie Schlenz, Hans‐Jürgen Wenz   +4 more
wiley   +1 more source

Effects of high‐speed sintering on the translucency and color of dental zirconia with different shades and yttria contents

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated the effects of high‐speed sintering on the translucency and color of various yttria‐stabilized zirconia (YSZ) compositions and identified factors influencing these properties to improve clinical predictability. Materials and Methods A total of 144 disc‐shaped specimens fabricated from 3YSZ, 4YSZ, and 5YSZ pucks in ...
Zidu Zeng, Nupur Patel, Yijing Su, Yu Zhang   +3 more
wiley   +1 more source