ABO Study Guide Questions With Complete Solutions

1. Where do you superimpose for a 10 year longitudinal study? correct answer: SN at S 2. HIPAA stands for correct answer: Health Insurance Portability and Accountability Act 3. What are the advantages to giving PLT rich plasma during sx? correct answer: B/c it contains PLT derived growth factor, transforming GF, insulin like GF 4. When does the cranium complete maximum growth? correct answer: Age 7 5. The most rapid somatic growth occurs from age __ to __ correct answer: 4 to 7 yo 6. Dx for pt w open bite, 27 mm opening, deviates left on opening correct answer: internal DD without reduction 7. Paralyzed right lateral pterygoid muscle, which direction will the mn deviate on opening correct answer: 8. DD without reduction what do you see? correct answer: Deviation to affected side, limited opening/lateral movement 9. Amount of opening with a closed lock correct answer: 23 mm 10. What is seen in acute closed lock (3)? correct answer: Deviation upon opening, limited ROM (27 mm), pain with forced max opening 11. Significant decalc occurs in __ of ortho patients correct answer: 50%, 12. Patients should avoid large amounts of fluoride to remin enamel T/F correct answer: True 13. Hypertelorism is seen in __ correct answer: midline (midline cleft causes hypertelorism, large d between eyes) 14. Wormian bones are seen in __ and __ correct answer: clediocranial dysplasia and osteogenesis imperfect 15. 8 bit photography has __ shades of gray. The human eye can see __ shades of gray. correct answer: 256, 16 16. What % of open bites self-correct? correct answer: 80% 17. Surfaces of TMJ lined by __ correct answer: thin synovial membrane 18. What is the best imaging method for perf. Disc? correct answer: Arthrography 19. Which gingival fiber is assoc w the most relapse? correct answer: Supracrestal 20. If pt has 2 mm CR-CO shift into Cl I in finishing stage, what is the appropriate tx? correct answer: Equilibrate mn distal inclines and mx mesial inclines 21. If pt has 2 mm CR-CO shift into Cl I in finishing stage, what is the appropriate tx? correct answer: Cl II elastics 22. What is the best statistical measure to predict mn growth based on 3 variables? correct answer: ANOVA 23. Increase/decrease in voxel size increases resolution correct answer: decrease 24. Changing voxel size affects magnification T/F correct answer: false 25. What is the best surgical procedure for pt w TMD? correct answer: IVRO - intraoral vertical ramus osteotomy 26. Missing one 3rd molar results in increased rate of small laterals and supernumeraries T/F correct answer: F, but does result in 13x greater chance to be missing other teeth, 3.5% chance of missing 2nd premolar 27. __ is derived from fronto nasal processes correct answer: philtrum 28. When do 2 halves of mn symphysis fuse? correct answer: 3 mo after birth