Face Mask

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Across
  1. 1. A patient with SNA = 77°, SNB = 80°, ANB = –3° requires protraction therapy. What skeletal stage should be confirmed before initiating treatment?
  2. 4. After facemask therapy in a Class III patient, IMPA increased from 90° to 97°. Which dental unit was affected?
  3. 7. A 10-year-old with ANB = –3° and constricted maxilla is scheduled for facemask therapy. Which procedure should be performed first to mobilize sutures?
  4. 10. A 11-year-old with ANB = –3° is scheduled for facemask therapy. Which procedure should be performed first to mobilize sutures?
  5. 11. A Class III patient with ANB = –4° experiences no improvement after facemask therapy despite good compliance. Which prerequisite step might have been missed?
  6. 12. In facemask therapy, a patient’s SNA increased from 76° to 80°. Which skeletal base was successfully advanced?
Down
  1. 2. Following maxillary protraction, SN-MP angle increased from 32° to 36°. Which growth pattern change occurred?
  2. 3. For orthopedic protraction of the maxilla, what is the typical force level per side in mg?
  3. 5. In facemask therapy, what precaution should be taken to prevent unwanted downward and backward rotation of the mandible?
  4. 6. For maxillary protraction, what is the ideal daily wearing time in hours to achieve optimal skeletal effects?
  5. 8. In a patient with ectodermal dysplasia, ANB = –2°, and poor dental anchorage, which type of facemask anchorage is preferred?
  6. 9. A 9-year-old with SNA = 76°, SNB = 80°, ANB = –4° presents with maxillary deficiency. Which orthopedic appliance is indicated?