A method of cephalometric evaluation

McNamara, James A.

doi:10.1016/s0002-9416(84)90352-x

Cited by 859 publications

(654 citation statements)

References 16 publications

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“…The customized cephalometric analysis, containing measurements from the analyses of Jacobson, 18 McNamara, 19 and Steiner, 20 generated 19 variables, 9 angular and 10 linear, for each tracing. Magnification was standardized to an 8% enlargement for all radiographs in both treated and control samples.…”

Section: Methodsmentioning

confidence: 99%

Stability of rapid maxillary expansion and facemask therapy: A long-term controlled study

Masucci

Franchi

Defraia

et al. 2011

American Journal of Orthodontics and Dentofacial Orthopedics

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Introduction: The aim of this prospective controlled study was to evaluate the long-term effects of rapid maxillary expansion and facemask therapy in Class III subjects. Methods: Twenty-two subjects (9 boys, 13 girls; mean age, 9.2 years 6 1.6) with Class III disharmony were treated consecutively with rapid maxillary expansion and facemask therapy followed by fixed appliances. The patients were reevaluated at the end of the 2-phase treatment (mean age, 14.5 years 6 1.9) and then recalled about 8.5 years after the end of rapid maxillary expansion and facemask treatment (mean age, 18.7 years 6 2.1). Two groups of controls with untreated Class III malocclusion were used for statistical comparisons of the short-term and long-term intervals. Statistical comparisons were performed with the Mann-Whitney U test. Results: In the long term, no significant differences in maxillary changes were recorded, whereas the treatment group showed significantly smaller increases in mandibular protrusion. The sagittal maxillomandibular skeletal variables maintained significant improvements in the treatment group vs the control groups. Conclusions: In the long term, rapid maxillary expansion and facemask therapy led to successful outcomes in about 73% of the Class III patients. Favorable skeletal changes were mainly due to significant improvements in the sagittal position of the mandible. (Am J Orthod Dentofacial Orthop 2011;140:493-500)

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Section: Methodsmentioning

confidence: 99%

Stability of rapid maxillary expansion and facemask therapy: A long-term controlled study

Masucci

Franchi

Defraia

et al. 2011

American Journal of Orthodontics and Dentofacial Orthopedics

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“…The regimen contained measurements from the analyses of Jacobson, 33 McNamara, 35 Ricketts, 36 Steiner, 37 and Tweed. 38 Before the cephalometric analysis, the intraobserver measurement error was evaluated.…”

Section: Methodsmentioning

confidence: 99%

Treatment and posttreatment effects of a facial mask combined with a bite-block appliance in Class III malocclusion

Cozza¹,

Baccetti²,

Mucedero³

et al. 2010

American Journal of Orthodontics and Dentofacial Orthopedics

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Introduction:In this cephalometric investigation, we analyzed the treatment and posttreatment effects of an orthopedic protocol for Class III malocclusion consisting of a facial mask combined with a removable biteblock appliance. Methods: The treated sample consisted of 22 Class III patients treated with the facial mask and bite-block protocol before the pubertal growth spurt (mean age, 8.9 6 1.5 years). Treated subjects were evaluated after facial mask and bite-block therapy and at a posttreatment observation in absence of retention. The treated group was compared with a matched control group of 12 untreated Class III subjects. All treated and control subjects were postpubertal at the final observation. Significant differences between the treated and control groups were assessed with the Mann-Whitney U test (P \0.05). Results: Both angular and linear sagittal measurements of the maxilla showed significant improvements during active treatment. Significant improvements of SNA angle, ANB angle, overjet, and molar relationship remained stable during the posttreatment period. No significant effect was found in the mandibular skeletal measures. No significant protraction of the maxillary incisors or retraction of the mandibular incisors was observed. Conclusions: A bite-block appliance in the mandibular arch with a facial mask enabled effective control of mandibular rotation with progressive closure of the gonial angle. This added to the favorable maxillary outcomes of the treatment protocol. (Am J Orthod Dentofacial Orthop 2010;138:300-10)

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“…Such skeletal dysfunction can be due to maxillary protrusion or mandibular deficiency, the latter being found more frequently than the former. 8 The clinical findings are: chin retraction, shortening of the submental region and closing of the mento-cervical angle. Further findings are eversion of the lower lip, exposure of the maxillary incisors and deepening of the mentolabial sulcus.…”

Section: Introductionmentioning

confidence: 99%

Cephalometric evaluation of surgical mandibular advancement

et al. 2010

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The treatment of Class II adult individuals with mandibular deficiency has been the combination of orthodontic treatment and orthognathic surgery. Therefore, a study was conducted in which cephalometric analysis was used to evaluate the influence of dentoalveolar decompensation in Class II patients submitted to orthodontic and surgical treatment for mandibular advancement, by bilateral osteotomy of the mandibular ramus. A sample of 15 leukoderma adult female patients were selected and three cephalometric radiographs of each patient, taken before the orthodontic treatment, before surgery and after at least 6 months postoperatively, were analyzed in a total of 45 roentgenograms. The tracings were made by the manual method and the points were digitalized using software. The results showed that values of SNB increased from 75.6 to 78.6°. The measures BNP and PGNP were reduced from -12.7 to -7.7 mm and -12.7 to -6.6 mm, respectively. For ANB there was a reduction of 3.23° (from 8.1° to 4.9°) . Likewise, the values of AOBO were diminished by 6.3 mm (from 7.6 to 1.3 mm), and in the values of OJ there was a reduction of 5.7 mm (from 9 to 3.3 mm). It was concluded that the pre-surgical orthodontic treatment promoted minimal and variable dental and skeletal changes in the final result. The surgical treatment caused significant skeletal changes, especially in the measurements related to the mandible (SNB, BNP, PGNP and SNPM) or indirectly to it (ANB, AOBO and OJ).

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A method of cephalometric evaluation

Cited by 859 publications

References 16 publications

Stability of rapid maxillary expansion and facemask therapy: A long-term controlled study

Stability of rapid maxillary expansion and facemask therapy: A long-term controlled study

Treatment and posttreatment effects of a facial mask combined with a bite-block appliance in Class III malocclusion

Cephalometric evaluation of surgical mandibular advancement

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