maxillomandibular fixation
DESCRIPTION
Maxillomandibular Fixation. “The Jaw-Dropping Experience of a Lifetime”. Our Team. From left to right… Emily Maslonkowski ( BSAC) Ashley Phillips (Co-Team Leader) Nina Lewis (Co-Team Leader) Sara Karle ( BWIG ) Joe Ferris (Communications). Client. Jeremy Warner, MD - PowerPoint PPT PresentationTRANSCRIPT
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Maxillomandibular Fixation
“The Jaw-Dropping Experience of a Lifetime”
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Our TeamFrom left to right… Emily Maslonkowski (BSAC) Ashley Phillips (Co-Team Leader) Nina Lewis (Co-Team Leader) Sara Karle (BWIG) Joe Ferris (Communications)
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ClientJeremy Warner, MD
Plastic Surgery, UW Medical School
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AdvisorWilliam Murphy
Assistant Professor, Department of Biomedical Engineering
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Background Information Mandible is the second most fractured
bone of the face Common causes of fractured
mandibles1. Assault2. Motor vehicle accidents3. Falls4. Sporting accidents
3 steps in fixing a mandible: realign bones, fixation, and rehabilitation
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Jaw Forces 3 main muscles in mastication
Masseter Temporalis Pterygoid
Figure 1 Figure 2 Figure 3
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Problem 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 healing
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Motivation for ProjectSurgeons throughout history have
dealt with broken mandibles in many ways
Maxillomandibular fixation is outdated requires wiring the mouth shut with the
use of arch bars and wires
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Our Client’s RequirementsCost effectiveDynamicEmergency
releasePatient
comfort
No forces on front teeth
Time effectiveSafe
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Application•Apply brackets with thelight cured adhesive• Connect brackets diagonally with rubber bands• Application time: 10-20 minutes
Figure 1
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Materials 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 adhesive
Estimated Cost…$60 per application
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Evaluation Pros
Quick release Short
application time
No anesthesia necessary
Aesthetically pleasing
Cons Bracket
detachment
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Future WorkUpgrading the bracketsBiomimetic mussel adhesiveTesting with light cured adhesive on
a human subjectImplement our design nationwide
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References Goldman, 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 <http://www.utmb.edu/otoref/Grnds/Mandible-fx- 0006/Mandible-fx-0006.pdf>.