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References

Chate RA. Correction of a prominent premaxilla in a juvenile with a bilateral cleft lip and palate using a novel, hybrid function regulator, the FR-BCPPm, followed by preadjusted fixed appliances: a 20-year follow-up. J Orthod. 2022; 49:426-440 https://doi.org/10.1177/14653125221079635
Fränkel R. The theoretical concept underlying the treatment with function correctors. Rep Congr Eur Orthod Soc. 1966; 42:233-254
Fränkel R. The treatment of Class II, division 1 malocclusion with functional correctors. Am J Orthod. 1969; 55:265-275 https://doi.org/10.1016/0002-9416(69)90106-7
Fränkel R. Decrowding during eruption under the screening influence of vestibular shields. Am J Orthod. 1974; 65:372-406 https://doi.org/10.1016/0002-9416(74)90271-1
Fränkel R. A functional approach to orofacial orthopaedics. Br J Orthod. 1980; 7:41-51 https://doi.org/10.1179/bjo.7.1.41
Eirew HL, McDowell F, Phillips JG. The function regulator of Fränkel: clinical management. Br J Orthod. 1976; 3:67-70 https://doi.org/10.1179/bjo.3.2.67
Graber TM, Neumann B. The Fränkel appliance (the function corrector).Philadelphia, PA, USA: WB Saunders; 1977
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McNamara JA, Huge SA. The Fränkel appliance (FR-2): model preparation and appliance construction. Am J Orthod. 1981; 80:478-495 https://doi.org/10.1016/0002-9416(81)90244-x
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McNamara JA JCO/interviews Dr James A McNamara, Jr on the Frankel appliance. Part 2 – Clinical management. J Clin Orthod. 1982; 16:390-407
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The FR BCPPm: A novel, hybrid function regulator

From Volume 16, Issue 1, January 2023 | Pages 10-18

Authors

Rob AC Chate

BDS, DDOrth RCPS(Glasg), MOrth RCS(Eng), M Surg Dent RCS(Ed), FDTF(Ed), FDS RCS(Ed)

Retired Consultant Orthodontist, Essex County Hospital, Colchester and The Royal London Dental Hospital

Articles by Rob AC Chate

Email Rob AC Chate

Abstract

The design features of a novel, hybrid function regulator, the FR BCPPm, are presented to facilitate the construction of other such appliances that may be used in the treatment of juveniles with a prominent premaxilla associated with a bilateral cleft lip and palate and mandibular retrusion. As an essential prerequisite to facilitate secondary alveolar bone grafting, how it may be used and the results that can be achieved are documented in a single case.

CPD/Clinical Relevance: To illustrate the design features of a novel function regulator in detail, which may be used to correct a prominent premaxilla in a patient with bilateral cleft lip and palate.

Article

The correction of a bilateral cleft's prominent pre-maxilla is a challenging clinical problem, but a recent case report has illustrated a successful outcome after a decade of treatment with a novel, hybrid functional appliance, namely the Function Regulator, for use in juveniles with mandibular retrusion, a bilateral cleft and a prominent premaxilla (the FR BCPPm), together with a nocturnal high-pull headgear, a quad helix (QH) appliance, followed by a stabilizing transpalatal arch (TPA) and a subsequent period of post-functional, pre-adjusted fixed appliances.1

Over half a century ago, Fränkel first described the design, construction and clinical management of his various function regulators for the correction of Class I, Class II division 1 and Class III malocclusions,2,3,45 which others have since either expanded on, or modified.6,7,8,9,10,11,12,13,14

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