Class iv malocclusion a new angle
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This document discusses the hypothesis that outdated diagnostic tools like the Angle Malocclusion Classification System and Steiner cephalometric norms can lead to inaccurate diagnoses, inappropriate treatment recommendations, and increased risk of airway disease. It questions whether McNamara's "Ideal" is anthropologically informed and examines if malocclusion is a disease of westernization not seen in ancient skeletons. Evidence suggests jaw and facial size may be reduced due to softer modern diets. Non-surgical approaches like Biobloc may help increase airway space in pediatric sleep apnea patients. Risk factors for malocclusion and sleep disordered breathing may be detectable in utero.
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Class iv malocclusion a new angle
- 2. Kevin L. Boyd, DDS, MS Anthropologist in training HYPOTHESIS: Outdated/anthropologically-uninformed diagnostic tools (Angle Malocclusion ClassificationSystem and mostly Steiner-based cephalometric norms) are leading to r inaccurate diagnoses, inappropriate Tx recommendations and consequential increased susceptibility to airway disease.
- 4. Sleep Breath. 2012 Jun;16(2):271-3. Another possible explanation for our findings is that oral cavity features such as high palates, narrow dental arches, and retruded chin all are additional risk factors for SDB in children338. Kushida CA, Efron B, Guilleminault C. A predictive morphometric model for the obstructive sleep apnea syndrome. Ann Intern Med. 1997;127:581–587 Although dentists and orthodontia recognize the importance of evaluating and treating OSA, they have yet to realize howwell-positioned they are for the prevention of sleep- disordered breathing (SDB).
- 9. Is the basis for McNamara’s “Ideal” anthropologically informed?
- 12. CEPHALOMETRICS
- 15. The Angle Orthodontist: 54 (1): 5-17 1984 Angle Orthod. 54(1): 5-17 1984
- 16. “ …(malocclusion) is a relatively new phenomenon in the human population and we do not find it in skeletons until after the seventeenth century. ” -Peter Gluckman “… jaw anomalies (malocclusions wherein the teeth cannot fit properly in the jaw) are relatively new to European populations. Well-preserved skeletons from the 15th and 16th centuries show almost no malocclusion in the population….”
- 17. EPI-GENETICS vs. GENETICS Dear John: You have ruined me for other men. I yearn for you. I feel nothing but heartache when we are apart. I am so happy. Yoko Dear John: You have ruined me. For other men, I yearn. For you, I feel nothing but heartache. When we are apart, I am so happy. Yoko I
- 18. 75% of children, ages 6 to 11 and 89% of youths, ages 12 to 17, have some degree of malocclusion - malocclusion in modern populations is higher than in ancient times. malocclusion a “Disease of Westernization” - R Corruccini
- 19. Revolutions in Human Evolution: Have Advancements in Agriculture and Industry Impacted Modern Facial Form? Kevin L. Boyd, M.Sc. (Nutrition), D.D.S. (Peds.) LARGER=wider and more prognathic
- 20. Nasion (N) Porion(P) Frankfort Horizontal Plane (FH) Orbitale Nasion-perpendic. (to FH) A-point
- 27. “….there is much circumstantial evidence that jaws and faces do not grow to the same size that they used to precisely because of our softer, more processed diets.” Daniel E. Lieberman
- 31. prolonged OET tube can deform palate
- 39. ILLINOIS SLEEP SOCIETY CONFERENCE 2012 Advancing Mandibles and Maxillas with Biobloc-Orthotropics: A Non-Surgical Approach to Increasing Posterior Pharyngeal Airway Space in Pediatric OSA Patients Kevin L. Boyd, M Sc, Kevin Boyd, DDS DDS Stephen Sheldon, MD CMH Jeffrey Hindin, DDS and John Kelly, DDS NYU- DSMC
- 42. 2/15/2010 BIOBLOC STAGE-1 Tx 2/21/2012 BIOBLOC STAGE- 3 Tx Example: Assign an arbitrary control value for airway radius of 1.0. A 50% reduction in airway radius would mean that the new airway radius would be 0.5. Now, according to Poiseuille, that gives us...R = 1/(0.5)4 R = 1/0.0625 = 16 Therefore, resistance to airflow is increased 16-fold with a decrease in airway diameter (and radius) of 50%.
- 43. Correlating PSG data with Biobloc TX Stephen Sheldon,DO Lurie response
- 45. Are malocclusion/SDB risk factors detectable in utero?
- 47. BREAST-FEEDING a.k.a Mother Nature’s PALATE EXPANDER
Editor's Notes
- http://www.diersorthodontics.com/pdfs/orthodontics-and-sleep-disordered-breathing-ruoff-guilleminault-2011-sleep-breath.pdf
- http://www.authorstream.com/Presentation/Gaurav_Mathur-512003-classification-of-malocclusion/
- http://www.visualphotos.com/image/1x6010472/the_tongue_and_palate_artwork