The functional regulator (FR-3) of Fränkel.
نویسندگان
چکیده
This article describes the construction of the FR-3 appliance classically used in cases of Class III malocclusion characterized by maxillary skeletal retrusion. Included is a description of proper impression technique, construction bite registration, preparation of the work models, and a complete description of the fabrication of the FR-3 appliance. Specific steps in the clinical management of this appliance are also presented. The cephalometric records of three patients treated with the FR-3 appliance are then presented.
منابع مشابه
Long-term treatment effects of the FR-2 appliance of Fränkel.
INTRODUCTION The objective of this study was to evaluate the long-term effectiveness in a group treated with the FR-2 appliance of Fränkel compared with an untreated Class II control group. METHODS The sample consisted of 30 patients (17 boys, 13 girls) treated exclusively with the FR-2 by Rolf Fränkel. The mean age at the start of treatment was 8 years (T1), with a posttreatment cephalogram ...
متن کاملTreatment effectiveness of Fränkel function regulator on the Class III malocclusion: a systematic review and meta-analysis.
INTRODUCTION The Fränkel function regulator III appliance (FR-3) has been used to correct Class III malocclusions for many years; however, its treatment effectiveness is controversial. In this study, we aimed to assess the effectiveness of the FR-3 in treating patients with Class III malocclusion in the growth and development period. METHODS Medline (via PubMed), Cochrane Central Register of ...
متن کاملTreatment effects produced by the twin-block appliance and the FR-2 appliance of Fränkel compared with an untreated Class II sample.
This retrospective cephalometric study compares the treatment effects produced in 40 patients treated with the Twin-block appliance to those seen in a matched sample of 40 children treated with the FR-2 appliance of Fränkel and to changes undergone in 40 untreated Class II controls from The University of Michigan Elementary and Secondary School Growth Study. The average starting ages for the Tw...
متن کاملEvaluation of long-term effects in patients treated with Fränkel-2 appliance.
AIM To evaluate the dentoskeletal effects produced by Fränkel-2 (FR-2) appliance during the treatment of patients with Class II malocclusion by mandibular retrusion and to verify the long-term stability of these changes. MATERIALS AND METHODS Pre-treatment, post-treatment and long-term serial cephalograms (at least 10 years after the end of treatment) of patients treated with FR-2 were comp...
متن کاملComparative study of the Fränkel (FR-2) and bionator appliances in the treatment of Class II malocclusion.
The purpose of this investigation was to compare the dentoalveolar and skeletal cephalometric changes produced by the Fränkel (FR-2) and bionator appliances in persons with Class II malocclusion. Lateral cephalograms were available for 66 patients of both sexes, who were divided into 3 groups of 22. The control group included untreated Class II children, with an initial mean age of 8 years 7 mo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- American journal of orthodontics
دوره 88 5 شماره
صفحات -
تاریخ انتشار 1985