ࡱ> 241q` RbjbjqPqP2 ::   *| ~ ~ ~ ~ ~ ~ $' h2   $ $ $ "| $ | $ $ $  px=:}$ | 0 $  $ $  $  $   Title:Reconstruction plates to bridge mandibular defects: a clinical and experimental investigation in biomechanical aspects Author(s): HYPERLINK "http://wos15.isiknowledge.com/CIW.cgi?SID=gAk5BbM7d4N@gfjfjo9&Func=OneClickSearch&field=AU&val=Zhang+Y&curr_doc=1/18&Form=FullRecordPage&doc=1/18" \o "one-click search" Zhang Y,  HYPERLINK "http://wos15.isiknowledge.com/CIW.cgi?SID=gAk5BbM7d4N@gfjfjo9&Func=OneClickSearch&field=AU&val=Zhang+J&curr_doc=1/18&Form=FullRecordPage&doc=1/18" \o "one-click search" Zhang J,  HYPERLINK "http://wos15.isiknowledge.com/CIW.cgi?SID=gAk5BbM7d4N@gfjfjo9&Func=OneClickSearch&field=AU&val=Yu+GY&curr_doc=1/18&Form=FullRecordPage&doc=1/18" \o "one-click search" Yu GY,  HYPERLINK "http://wos15.isiknowledge.com/CIW.cgi?SID=gAk5BbM7d4N@gfjfjo9&Func=OneClickSearch&field=AU&val=Liu+L&curr_doc=1/18&Form=FullRecordPage&doc=1/18" \o "one-click search" Liu L,  HYPERLINK "http://wos15.isiknowledge.com/CIW.cgi?SID=gAk5BbM7d4N@gfjfjo9&Func=OneClickSearch&field=AU&val=Zhao+FY&curr_doc=1/18&Form=FullRecordPage&doc=1/18" \o "one-click search" Zhao FY,  HYPERLINK "http://wos15.isiknowledge.com/CIW.cgi?SID=gAk5BbM7d4N@gfjfjo9&Func=OneClickSearch&field=AU&val=Zhong+GC&curr_doc=1/18&Form=FullRecordPage&doc=1/18" \o "one-click search" Zhong GC Source:INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY 28 (6): 445-450 DEC 1999 Document Type:Article Language:English  HYPERLINK "http://wos15.isiknowledge.com/CIW.cgi?SID=gAk5BbM7d4N@gfjfjo9&Func=PagedCitedRefList&UT=000084246200008&doc=1/18&rec_id=112956057" Cited References: 19 Times Cited: 0  HYPERLINK "http://wos15.isiknowledge.com/CIW.cgi?SID=gAk5BbM7d4N@gfjfjo9&Func=EasyRelated&UT=000084246200008&doc=1/18&rec_id=112956057"  INCLUDEPICTURE "http://images15.isiknowledge.com/WoK3/Images/relrec.gif" \* MERGEFORMATINET  HYPERLINK ""  INCLUDEPICTURE "http://images15.isiknowledge.com/WoK3/Images/info.gif" \* MERGEFORMATINET  Abstract:A retrospective study of 68 patients was carried out to assess the complications arising from the use of reconstruction plates in the maintainance of space and contour following mandibular segmental resection. Skin or mucosal perforation, plate fracture and loss of screw retention were the main complications. The most susceptible sites to screw loosening in the plates were situated nearest to and farthest from the resection margin on the proximal residual segments. Some of the possible causative biomechanical mechanisms of plate failure were studied using photoelastic models simulating the types of mandibular defect and plate fixation. Isochromatic fringe analysis was used to analyse stress lines in the bone surrounding screws. It was found that, during functional loading, moment and shear forces produced high concentrations of squeeze and press stress in this bone, causing bone resorption with consequent loss of screw retention. Author Keywords:mandibular neoplasm (surgery and reconstruction) KeyWords Plus:THORP-SYSTEM; AO PLATES; RESECTION; EXPERIENCE; REPAIR; 3-DBRP Addresses:Zhang Y (reprint author), Beijing Med Univ, Dept Oral & Maxillofacial Surg, Sch Stomatol, Beijing, 100081 Peoples R China Beijing Med Univ, Dept Oral & Maxillofacial Surg, Sch Stomatol, Beijing, 100081 Peoples R China Qing Hua Univ, Dept Engn Mech, Beijing, Peoples R China Publisher:MUNKSGAARD INT PUBL LTD, 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK Subject Category:DENTISTRY, ORAL SURGERY & MEDICINE; SURGERY IDS Number:265LT ISSN:0901-5027  &}@ A H I K L   } ~ < = D E G H жжККККiККiККiККiКК,h@h@>*B*CJKHOJQJ^Jph2h@h@5>*B*CJKHOJQJ\^Jph6jh@h@B*CJKHOJQJU^JaJph3h@h@5B*CJKHOJQJ\^JaJph-h@h@B*CJKHOJQJ^JaJph/h@h@5B*CJKHOJQJ\^Jph) d | jy $1$a$gd@ $1$9Da$gd@    d r |  145;GOPͶͶ̈́ͶjͶN6jh@h@B*CJKHOJQJU^JaJph3h@h@5B*CJKHOJQJ\^JaJph2h@h@5>*B*CJKHOJQJ\^Jph/h@h@5B*CJKHOJQJ\^Jph-h@h@B*CJKHOJQJ^JaJph6jh@h@B*CJKHOJQJU^JaJph,h@h@>*B*CJKHOJQJ^Jph8;<=>LMNjz$y̰}̰eeeeeeeeahx/h@h@5B*CJKHOJQJ\^Jph6jh@h@B*CJKHOJQJU^JaJph-h@h@B*CJKHOJQJ^JaJph6jh@h@B*CJKHOJQJU^JaJph6jh@h@B*CJKHOJQJU^JaJph-h@h@B*CJKHOJQJ^JaJph0182P. 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