Maxillomandibular FixationOur TeamClientAdvisorBackground InformationJaw ForcesProblem StatementMotivation for ProjectOur Client’s RequirementsApplicationMaterials and CostsEvaluationFuture WorkReferencesMaxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”Our TeamFrom left to right…Emily Maslonkowski (BSAC)Ashley Phillips (Co-Team Leader) Nina Lewis (Co-Team Leader)Sara Karle (BWIG)Joe Ferris (Communications)ClientJeremy Warner, MDPlastic Surgery, UW Medical SchoolAdvisorWilliam MurphyAssistant Professor, Department of Biomedical EngineeringBackground InformationMandible is the second most fractured bone of the faceCommon causes of fractured mandibles1. Assault2. Motor vehicle accidents3. Falls4. Sporting accidents3 steps in fixing a mandible: realign bones, fixation, and rehabilitationJaw Forces 3 main muscles in mastication Masseter Temporalis PterygoidFigure 1Figure 2Figure 3Problem StatementDesign a device which will: Fixate the top of the mouth to the jaw Be easier and faster to apply Maintain an adequate cost of application Be safe for the 4-6 weeks of healingMotivation for ProjectSurgeons throughout history have dealt with broken mandibles in many waysMaxillomandibular fixation is outdatedrequires wiring the mouth shut with the use of arch bars and wiresOur Client’s RequirementsCost effectiveDynamicEmergency releasePatient comfortNo forces on front teethTime effectiveSafeApplication•Apply brackets with thelight cured adhesive• Connect brackets diagonally with rubber bands• Application time: 10-20 minutes Figure 1Materials and Costs 8-16 stainless steel brackets 6 mm x 2 mm x 2.5 mm hook length: 2.5 mm 4-8 3M Unitek rubber bands GC Fuji Ortho adhesiveEstimated Cost…$60 per applicationEvaluationProsQuick releaseShort application timeNo anesthesia necessaryAesthetically pleasingCons Bracket detachmentFuture WorkUpgrading the bracketsBiomimetic mussel adhesiveTesting with light cured adhesive on a human subjectImplement our design nationwideReferencesGoldman, Kim E. "Mandible Fractures." Ask An Oral & Maxillofacial Surgeon. 2005. 8 Sept. 2005 <http://www.calweb.com/~goldman/mandible_fractures.html>. "Muscles of Mastication: Form dictates function; Function follows form." Nociceptive Trigeminal Inhibition - Tension Suppression System. 15 Sept. 2005 <http://www.nti-tss.com/slide1.htm>. Peltier, Jacques, comp. Mandible Fractures. 26 May 2004. UTMB Dept. of Otolaryngology. 11 Sept. 2005 <http://www.utmb.edu/otoref/Grnds/Mandible-fx-040526/Mandible-fx- 040526.htm>. Prater, Michael E., comp. Mandibular Fractures. 27 Nov. 1996. UTMB Dept. of Otolaryngology. 20 Sept. 2005 <http://www.utmb.edu/otoref/Grnds/Mandibular-fx-961127/Mandibular-fx-961127.htm>. Stierman, Karen, and Byron J. Bailey. "Mandible Fractures." 14 June 2000. 10 Sept. 2005
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