Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”
-
Upload
christiana-edwards -
Category
Documents
-
view
220 -
download
1
Transcript of Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”
![Page 1: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/1.jpg)
Maxillomandibular Fixation
“The Jaw-Dropping Experience of a Lifetime”
![Page 2: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/2.jpg)
Our TeamFrom left to right… Emily Maslonkowski (BSAC) Ashley Phillips (Co-Team Leader) Nina Lewis (Co-Team Leader) Sara Karle (BWIG) Joe Ferris (Communications)
![Page 3: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/3.jpg)
ClientJeremy Warner, MD
Plastic Surgery, UW Medical School
![Page 4: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/4.jpg)
AdvisorWilliam Murphy
Assistant Professor, Department of Biomedical Engineering
![Page 5: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/5.jpg)
OutlineBackground InformationProblem StatementMotivationOur Client’s RequirementsDesigns for ProjectDecision MatrixGoals for ProjectQuestions
![Page 6: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/6.jpg)
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
![Page 7: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/7.jpg)
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
![Page 8: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/8.jpg)
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 wiresMust be a better way!
![Page 9: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/9.jpg)
Our Client’s RequirementsCost effectiveLight weightDynamicEmergency
release
No forces on front teeth
Time EffectiveSafe
![Page 10: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/10.jpg)
Design #1: External Stabilization
Place support on head
Tighten straps securely
![Page 11: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/11.jpg)
Design #1: Materials and CostsJaw brace
Estimated Price…$70
![Page 12: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/12.jpg)
Design #1: Evaluation
ProsEasy
applicationCost effectiveQuick releaseNo anesthesia
ConsAestheticsDiscomfortSmall chance
of sliding off
![Page 13: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/13.jpg)
Design # 2: Screws and Magnets
Figure 1
Figure 2
Figure 3
Magnets attached to screws
Drill screws into jaw
Use magnetic force to hold jaw together
![Page 14: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/14.jpg)
Design #2: Materials and Costs 4 Titanium Cortical Screws 4 AlNiCo Magnets Centre Drive Hexagonal Screwdriver (one-
time cost)
Estimated Cost...$103.36-$110.56 per application
![Page 15: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/15.jpg)
Design #2: Evaluation
Pros Re-usable
materials (screws)
Quick Application
Durable
Cons No emergency
release Not aesthetically
pleasing Requires
anesthesia
![Page 16: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/16.jpg)
Design #3: Braces
• Apply brackets• Connect lateralbrackets with elastic• Connect vertical bracketswith rubber bands
Figure 2
Figure 1
![Page 17: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/17.jpg)
Design #3: Materials and Costs16 (stainless steel) brackets16 elastics (power chain) adhesive 8 rubber bands
Estimated Cost…$400 per application
![Page 18: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/18.jpg)
Design #3: Evaluation
Pros Quick release Short
application time (approx. 15-20 minutes)
No anesthesia necessary
Aesthetically pleasing
ConsExpensive
![Page 19: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/19.jpg)
Design 1: External
Design 2: Screws/Magnets
Design 3: Braces
Application Time 5 4 4
Cost 5 3 2
Quick Release 5 1 5
Aesthetics 1 2 5
Comfort 1 2 4
Durability 2 4 4
Local Anesthesia 5 1 5
Total 24 17 29
Scale: 1-5, 1=poor, 5=good
Decision Matrix
![Page 20: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/20.jpg)
Goals for the Rest of the SemesterFind muscle forces in jawTest design on model skullFind exact price of braces design
![Page 21: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/21.jpg)
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>.
![Page 22: Maxillomandibular Fixation “The Jaw-Dropping Experience of a Lifetime”](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649ce35503460f949afa5a/html5/thumbnails/22.jpg)
ANY QUESTIONS?