Cranial-base morphology in adults with skeletal Class III malocclusion

Sanggarnjanavanich, Seetala; Sekiya, Toshiko; Nomura, Yasuo; Nakayama, Takahiro; Hanada, Nobuhiro; Nakamura, Yoshiki

doi:10.1016/j.ajodo.2014.04.014

Cited by 32 publications

(25 citation statements)

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“…In our study the mesiocclusion group showed, on average, the greatest cranial base angle (nasion-sella-basion), the neutrocclusion group the smallest angle, and the means of the class II and open bite groups were between these. However, in accordance with recent investigations [2, 32], the differences in cranial base angle were small (ranging from 128.5° to 132.3°; Table 2) and they were not statistically significant, questioning the relevance of cranial base flexion for malocclusion.…”

Section: Discussionsupporting

confidence: 87%

Geometric morphometrics of different malocclusions in lateral skull radiographs

Freudenthaler

Čelar

Ritt³

et al. 2016

J Orofac Orthop

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BackgroundTo evaluate the role of craniofacial shape in malocclusion by application of geometric morphometrics to a set of two-dimensional landmarks and semilandmarks obtained from lateral skull radiographs.MethodsCephalometric radiograph tracings of 88 untreated Caucasians (age range 7–39 years) were assigned to four groups according to their occlusion: neutrocclusion, distocclusion, mesiocclusion, and anterior open bite. The geometric morphometric shape analysis incorporated 66 landmarks and semilandmarks, which underwent generalized Procrustes analysis, between-groups principal component analysis, thin-plate spline deformation grid visualization, permutation tests, and receiver operating characteristic curves.ResultsThe position and shape of the mandible contributed to differences between the distocclusion and mesiocclusion groups, whereas the maxillary shape showed less variation. The growth-related shape alteration during adolescence was most pronounced in the mesiocclusion group and least pronounced in the neutrocclusion group. The open bite group was associated with an altered orientation of the mandibular body and the maxilla, showed the most hyperdivergent maxillomandibular pattern but was not an own skeletal entity. Despite clear differences in mean shape across the four groups, the individual distribution of craniofacial shape overlapped between the groups without discrete clusters.ConclusionsCraniofacial shape was clearly associated with dental malocclusion and showed considerable variation. Geometric morphometrics was a powerful research tool but for diagnosing individual malocclusion standard cephalometric measurements including overjet and overbite were equally or more efficient than geometric morphometric descriptors.

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Section: Discussionsupporting

confidence: 87%

Geometric morphometrics of different malocclusions in lateral skull radiographs

Freudenthaler

Čelar

Ritt³

et al. 2016

J Orofac Orthop

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“…Previous studies have reported that in Class III malocclusion the cranial base has smaller linear 2,3,5,10,14-19 and angular dimensions. 2,3,12,[15][16][17][20][21][22][23][24][25][26] Sundareswaran and Thirumoorty 18 appreciated a significant positive association between anterior cranial base parameters and maxillary deficiency in Class III malocclusion, while Proff et al 24 failed to show a significant reduction in anterior cranial base length in skeletal Class III malocclusion despite overall shortening of the total cranial base length.…”

Section: Introductionmentioning

confidence: 99%

Cranial base characteristics in anteroposterior malocclusions: A meta-analysis

Gong

Wang

et al. 2015

The Angle Orthodontist

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“…Chin et al 16 y Sanggarnjanavanich et al 17 hallaron valores reducidos de la longitud de la línea SN en pacientes con patrón esquelético clase III. Thiesen et al 18 encontraron que la longitud de la línea SN presentaba una reducción gradual desde el grupo con patrón clase I, clase II y clase III.…”

Section: Discussionunclassified

Evaluación cefalométrica de la longitud y deflexión de la base craneal anterior en pacientes con diferente patrón esquelético

Angeles

Galarza

2017

Odontol. sanmarquina

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Artículo Original47 © Los autores. Este artículo es publicado por la revista Odontología Sanmarquina de la Facultad de Odontología, Universidad Nacional Mayor de San Marcos. Este es un artículo de acceso abierto, distribuido bajo los términos de la licencia Creative Commons Atribucion -No Comercia_Compartir Igual 4.0 Internacional. (http://creativecommons.org/licenses/by-nc-sa/4.0/) que permite el uso no comercial, distribución y reproducción en cualquier medio, siempre que la obra original sea debidamente citada. Odontol. Sanmarquina 2017; 20(2): 47-52 http://dx.doi.org/10.15381/os.v20i2.13932Evaluación cefalométrica de la longitud y deflexión de la base craneal anterior en pacientes con diferente patrón esquelético Cephalometric evaluation of the length and deflection of the anterior cranial base in patients with different skeletal patterns ResumenObjetivo: Evaluar las diferencias en la longitud y deflexión de la base craneal anterior en pacientes con diferente patrón esquelético. Materiales y método: El diseño del estudio fue observacional, descriptivo y transversal. La muestra fue distribuida en tres grupos y conformada por radiografías cefalométricas de 310 pacientes, cuyo rango de edad fue de 6 a 12 años. Se obtuvieron las radiografías cefalometricas de cada paciente, las cuales fueron evaluadas a través del trazado cefalométrico. Las variables evaluadas fueron: longitud de la línea sella-nasion y el ángulo formado entre la línea sella-nasion y el plano horizontal de Frankfort. Los datos se analizaron estadísticamente utilizando las pruebas Kruskal-Wallis y U Mann-Whitney (p<0,05). Resultados: De acuerdo con el análisis estadístico, se encontraron diferencias significativas en la longitud y deflexión de la base craneal anterior en el grupo con patrón esquelético clase III (60,40+4,31 mm, 7+2,11º) en comparación a la clase I (68,36+3,76 mm, 8,13+2,64º) y clase II (68,76+3,56 mm, 8,63+2,43º). La longitud y deflexión de la base craneal anterior presentaban diferencias significativas según género, sin embargo no se encontraron diferencias significativas en relación a la edad. Conclusiones: La longitud y deflexión de la base craneal anterior es similar en niños con patrón esquelético de clase I y clase II pero diferente en clase III.Palabras clave: Base del cráneo; Cefalometría; Niño. AbstractObjective: To evaluate the differences in length and deflection of the anterior cranial base in patients with different skeletal patterns, was the objective of the investigation. Materials and method: The study design was observational, descriptive and cross-sectional. The sample was conformed by 310 cephalometric radiographs of 6 to 12 year-old patients divided into three groups. Cephalometric radiographs were evaluated through the cephalometric tracing. The variables evaluated were: length of the sella-nasion line and the angle formed between the sella-nasion line and Frankfort horizontal plane. Data were statistically analyzed using the Kruskal-Wallis and U Mann-Whitney tests (p <0.05). Results: It was found significan...

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Cranial-base morphology in adults with skeletal Class III malocclusion

Cited by 32 publications

References 44 publications

Geometric morphometrics of different malocclusions in lateral skull radiographs

Geometric morphometrics of different malocclusions in lateral skull radiographs

Cranial base characteristics in anteroposterior malocclusions: A meta-analysis

Evaluación cefalométrica de la longitud y deflexión de la base craneal anterior en pacientes con diferente patrón esquelético

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