ࡱ> 796q` RbjbjqPqP2 ::  p* $h! ! !  *!   !   ДG"@0p0 F r \   p! ! ! ! dhdh Title:Electromyographic investigation of masticatory muscles in unilateral cleft lip and palate patients with anterior crossbite Author(s): HYPERLINK "http://wos02.isiknowledge.com/CIW.cgi?SID=Z2BpEl7c9GkG4GojDN9&Func=OneClickSearch&field=AU&val=Li+WR&curr_doc=57/1&Form=FullRecordPage&doc=57/1" \o "one-click search" Li WR,  HYPERLINK "http://wos02.isiknowledge.com/CIW.cgi?SID=Z2BpEl7c9GkG4GojDN9&Func=OneClickSearch&field=AU&val=Lin+JX&curr_doc=57/1&Form=FullRecordPage&doc=57/1" \o "one-click search" Lin JX,  HYPERLINK "http://wos02.isiknowledge.com/CIW.cgi?SID=Z2BpEl7c9GkG4GojDN9&Func=OneClickSearch&field=AU&val=Fu+MK&curr_doc=57/1&Form=FullRecordPage&doc=57/1" \o "one-click search" Fu MK Source:CLEFT PALATE-CRANIOFACIAL JOURNAL 35 (5): 415-418 SEP 1998 Document Type:Article Language:English  HYPERLINK "http://wos02.isiknowledge.com/CIW.cgi?SID=Z2BpEl7c9GkG4GojDN9&Func=PagedCitedRefList&UT=000079696200005&doc=57/1&rec_id=109661717" Cited References: 24  HYPERLINK "http://wos02.isiknowledge.com/CIW.cgi?SID=Z2BpEl7c9GkG4GojDN9&Func=DispCitingRec&doc=57/1&isickref=109661717" Times Cited: 3  HYPERLINK "http://wos02.isiknowledge.com/CIW.cgi?SID=Z2BpEl7c9GkG4GojDN9&Func=EasyRelated&UT=000079696200005&doc=57/1&rec_id=109661717"  INCLUDEPICTURE "http://images.isiknowledge.com/WoK3/Images/relrec.gif" \* MERGEFORMATINET  HYPERLINK ""  INCLUDEPICTURE "http://images.isiknowledge.com/WoK3/Images/info.gif" \* MERGEFORMATINET  Abstract:Objective: To evaluate the characteristics of masticatory muscle activity in operated unilateral cleft lip and palate (UCLP) patients with anterior crossbite compared with normal individuals. Subjects: Sixteen male and 13 female Chinese patients with UCLP and anterior crossbite, Fifteen male and 13 female Chinese individuals without cleft abnormalities served as a control group. Design: Electromyographic activity of the masseter muscles and anterior temporalis muscles was recorded bilaterally in different mandibular positions using bipolar surface electrodes. Results: Compared to noncleft controls, patients with UCLP demonstrated (1) higher activation levels of masseter and temporalis muscles in the rest position, (2) lower potential function of masseter and temporalis, (3) inharmonious activity of the masticatory muscles during mandibular border movement, (4) a higher asymmetry index of the masseter and temporalis muscles, and (5) longer silent periods of the two muscles. Conclusions: The function of masticatory muscles is different in patients with UCLP with anterior crossbite, Muscle function should be considered when evaluating cleft patients for orthodontic treatment and orthognathic surgery. Author Keywords:cleft lip and palate; crossbite; electromyography; masticatory muscle KeyWords Plus:DIFFERENTIAL LISSAJOUS EMG; NORMAL OCCLUSION; MALOCCLUSION; MORPHOLOGY; CONTACTS Addresses:Li WR (reprint author), Beijing Med Univ, Sch Stomatol, Dept Orthodont, Beijing, 100081 Peoples R China Beijing Med Univ, Sch Stomatol, Dept Orthodont, Beijing, 100081 Peoples R China Publisher:AMER CLEFT PALATE-CRANIOFACIAL ASSOC, 1829 EAST FRANKLIN ST, STE 1022, CHAPEL HILL, NC 27514 USA Subject Category:DENTISTRY, ORAL SURGERY & MEDICINE; SURGERY IDS Number:185XL ISSN:1055-6656 B C H I K L     # , 6 7 ] жККККiККiжККiК,hbhb>*B*CJKHOJQJ^Jph2hbhb5>*B*CJKHOJQJ\^Jph6jhbhbB*CJKHOJQJU^JaJph3hbhb5B*CJKHOJQJ\^JaJph-hbhbB*CJKHOJQJ^JaJph/hbhb5B*CJKHOJQJ\^Jph) # 6 XTgdb$K-1$9Da$gdb $1$a$gdb $1$9Da$gdb] ^ j l m s t Z ] ^ _ ` n o p ʳiiM6jhbhbB*CJKHOJQJU^JaJph-hbhbB*CJKHOJQJ^JaJph6jhbhbB*CJKHOJQJU^JaJph-hbhbB*CJKHOJQJ^JaJph,hbhb>*B*CJKHOJQJ^Jph2hbhb5>*B*CJKHOJQJ\^Jph6jhbhbB*CJKHOJQJU^JaJph T^"hbhAXo(-hbhbB*CJKHOJQJ^JaJph/hbhb5B*CJKHOJQJ\^Jph0182P. 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