Facemask (orthodontics)
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A facemask (also referred to as a protraction facemask, orthopedic facemask, or reverse-pull headgear) is a type of an orthodontic headgear used to treat underbite and other malocclusions where the upper jaw is too far backwards.[1][2] A metal bar sits in front of the patients face with support from the forehead and chin. Elastics are connected to the metal bar and the teeth - directly through the lips / mouth of the patient. The elastics apply forward and downward pressure on the upper jaw. Thus the force direction is the opposite from a standard headgear which is why this appliance is also known as a reverse-pull-headgear. [1]
This facemask appliance needs to worn by the patient for between 14 and 16 hours daily. [3]
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References
[edit]- 1 2 "Protraction facemask". Dr Sylvain Chamberland Orthodontiste. 2011-09-26. Retrieved 2019-08-18.
- ↑ Mandall, Nicky; Cousley, Richard; DiBiase, Andrew; Dyer, Fiona; Littlewood, Simon; Mattick, Rye; Nute, Spencer J.; Doherty, Barbara; Stivaros, Nadia; McDowall, Ross; Shargill, Inderjit; Worthington, Helen V. (August 26, 2016). "Early class III protraction facemask treatment reduces the need for orthognathic surgery: a multi-centre, two-arm parallel randomized, controlled trial". Journal of Orthodontics. 43 (3): 164–175. doi:10.1080/14653125.2016.1201302. ISSN 1465-3133. PMC 5062052. PMID 27564126.
- ↑ Ozkalayci, Nurhat; Cicek, Orhan (2017), "When Do Skeletal Class III Patients Wear Their Reverse Pull Headgears?", BioMed Research International, 2017: 1–5, doi:10.1155/2017/3546262, PMC 5362724, PMID 28377927