Cephalometric evaluation of Class III malocclusion by a modified TweedMerrifield analysis

A sample of cephalograms of 20 White Brazilian subjects (9 males, 11 females) of 17-36 years old, who presented Class III dental malocclusion was selected and traced. Results showed statistically significant differences among genders for FMIA, SNA, SNB, 1.NB, PFH, AFH, 1-NB and mandibular length. An...

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Bibliographic Details
Published in:	Brazilian journal of oral sciences Vol. 4; no. 12
Main Authors:	Mayury Kuramae, Maria Beatriz Borges de Araújo Magnani, João Sarmento Pereira Neto, Darcy Flávio Nouer, Paulo Roberto Aranha Nouer
Format:	Journal Article
Language:	English
Published:	Universidade Estadual de Campinas 01-11-2015
Subjects:	Cephalometrics. Class III malocclusion. Mandibular prognatism
Online Access:	Get full text
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Summary:	A sample of cephalograms of 20 White Brazilian subjects (9 males, 11 females) of 17-36 years old, who presented Class III dental malocclusion was selected and traced. Results showed statistically significant differences among genders for FMIA, SNA, SNB, 1.NB, PFH, AFH, 1-NB and mandibular length. Anteroposterior jaw relation, as shown by SNA and SNB, presented a maxilla correctly positioned, as well as mandibular protrusion, which was related to a normal upper jaw length and an augmented lower jaw length. A vertical growth pattern prevailed, as evidenced by FMA, AFH, PHF and OCC.PL. Angle. The Z Angle, total chin and upper lip failed to clearly show any disturbance of facial esthetics and IMPA, 1.NA, 1- NA, 1.NB and 1-NB revealed dental compensation.
ISSN:	1677-3225
DOI:	10.20396/bjos.v4i12.8641797