The extra-oral protraction face mask (PFM) is the most efficient appliance for short- to long-term use [9 11].
Also, protraction face mask and miniplate anchorage seemed to be weak to overcome the tensile force from palatal scar in this particular case.
Whereas, in class III malocclusion cases, the loosening of the circumzygomatic sutures will make the maxilla pliable enough to respond to the orthopedic protrusive forces of the protraction face mask [6].
From 1999 to 2006, repeated treatments, which consisted of Le Fort I osteotomy and face mask distraction, and complementary maxillary protraction using miniplates were performed including orthodontics.
Patients were asked to wear the face mask all day long and the protraction force of the elastics was adjusted to 400 500 g on each side (Fig. 1).
First, the protraction force of the face mask may induce forward movement of the maxilla, especially PNS; this could cause anterior displacement of the soft palate and consequently increase upper airway space [16].
He made blueprints premised on surprise and an almost perverse protraction of pleasure.
Mentions this magazine's experience of a libel suit of Jarndycean protraction and complication.
In language, his hallmark is corrosive metaphor; in dialogue, the clash of wills; in action, the protraction of unconscionable agonies.
