000 02799nam a22002657i 4500
008 200302s2019 ua a|||| |||| 00| 0 eng d
040 _aEG-NcFUE
_erda
082 _223
_a617.692
_bA.M.A
100 1 _aAbdel-Azim, Mai Salah El-din
_eauthor.
245 1 0 _aAccuracy of Fit of Crowns generated from Digital Images Using Two Extra-Oral Scanners and CAD/CAM Systems /
_cMai Salah El-din Abdel-Azim; supervisor: Ashraf Hussein Sherif, Ahmed Naguib Mohammed, Shereen Ahmed Nossair.
246 3 5 _aدقة احكام التيجان الصادرة من صور رقمية باستخدام نوعين من الماسح الخارج - فمى ونظم كاد/كام.
264 1 _c2019.
300 _a97 Pages :
_bIllustrations ;
_c30 cm.
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
338 _avolume
_2rdacarrier
500 _aThesis (M. Sc)-future University, Faculty of Oral and Dental Medicine, 2019.
520 _aComputer-aided design (CAD) and computer-aided manufacturing (CAM) techniques have been introduced into dentistry to simplify and improve the quality of final restorations. CAD stands for computer-aided design, or the process by which a computer is responsible for planning, designing, and modeling of digital images obtained by scanning or acquired in a database. The mathematical models designed by CAD systems are interpreted by computational elements. CAM (computer-aided manufacturing) systems receive the object data digitally acquired and make it tangible through prototyping. CAD/CAM aims to overcome certain physical limitations of conventional means, such as the dimensional changes of impression materials, the expansion of dental stone, and human errors associated with final restoration fabrication, thus reducing processing time as well as cost. Duret was the first one to introduce the first generation of CAD/CAM system in 1973 , then the CAD/CAM concept was further developed by Mormann et al to produce CEREC system . CEREC system (an acronym for chairside Economical restoration of esthetic ceramics) was the first commercially available digital impression system for use in the field of dentistry, ver the past 25 years, CAD/CAM technology has become extremely popular. It is widely being used, in dental laboratories and in dental offices, to design and machine various restorations, veneers, inlays, onlays, crowns, fixed dental prostheses, implant abutments, cast removable partial dentures and even full-mouth rehabilitation.
650 4 _aFixed Prosthodontics.
700 1 _pSherif, Ashraf Hussein
_tsupervisor
700 1 _pMohammed, Ahmed Naguib
_tsupervisor
700 1 _pNossair, Shereen Ahmed
_tsupervisor
856 4 0 _3DSpace electronic resource
_uhttp://repository.fue.edu.eg/xmlui/handle/123456789/5231
942 _cTHESIS
999 _c12428
_d12428