Analysis of 20 cases of Class III malocclusion treated with the FR.III showed that correction of the anterior crossbite was effected by adjustment of incisor inclinations and backward rotation or repositioning the mandible accompanied by an increase in face height.
Subjects which responded most favourably to the FR.III were those with severe Class III malocclusion and a deep incisor overbite.
Get full access to this article
View all access options for this article.
References
1.
AdamsC. P. (1969) An investigation into indications for and the effects of the function regulator, Transactions of the European Orthodontic Society, 293–312.
2.
FränkelR. (1970) Maxillary retrusion in Class III and treatment with the Function Corrector III, Transactions of the European Orthodontic Society, 249–259.
3.
GravelyJ. F. (1984) A study of the mandibular closure path in angle Class III relationships, British Journal of Orthodontics, 11, 85–91.
4.
HaynesS. (1983) Anterior vertical changes in function regulator therapy, European Journal of Orthodontics, 5, 219–223.
5.
KerrW. J. S. (1979) A longitudinal cephalometric study of dentofacial growth from 5 to 15 years, British Journal of Orthodontics, 6, 115–121.
6.
RobertsonN. (1983) An examination of treatment changes in children treated with the function regulator of Fränkel, American Journal of Orthodontics, 83, 299–310.
