Clinicostatistical Study on Orthognathic Surgery for 11 Years at Second Department of Oral and Maxillofacial Surgery, Osaka Dental University.

Yunoki, Hirokazu; Nakajima, Masahiro; Hayashi, Hiroya; Kubo, Hirohito; Onishi, Yuichi; Nosaka, Yasuhiro; Tsunokuma, Masayuki; Morita, Syosuke; Kakudo, Kenji; Hashimoto, Noboru; Kawamoto, T.

doi:10.5927/jjjd1991.9.51

Cited by 6 publications

(3 citation statements)

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“…Facial asymmetry is more common in patients with skeletal mandibular prognathism than in those with skeletal maxillary prognathism [ 1 , 3 , 37 , 38 , 39 ]. Skeletal asymmetry has been reported to increase as the craniofacial bones move from upper to lower positions and from posterior to anterior positions, even in subjects with normal occlusion.…”

Section: Discussionmentioning

confidence: 99%

“…Sample size estimation was based on our preliminary investigation. According to previous studies [ 3 , 4 , 5 , 6 ], this study was powered to detect differences in the area of the middle cranial base within the symmetry group and the asymmetry group, which were then compared between the two groups ( n = 53; 75% power; 5% significance level; 1-tailed). The area differences were 1250.79 ± 868.92 mm 2 for the symmetry group and 1735.95 ± 1222.04 mm 2 for the asymmetry group.…”

Section: Methodsmentioning

confidence: 99%

“…Previous reports have shown that mandibular malalignment often extends to the midface, and deformities may occur not only in the temporal bone and maxilla, but also in the cranium [ 3 , 4 , 5 , 6 ]. Craniofacial growth involves the cranium, midface and lower face, and the growth of these three areas is thought to be coordinated.…”

Section: Introductionmentioning

confidence: 99%

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Three-Dimensional Analysis of the Cranial Base Structure in Patients with Facial Asymmetry

Hayashi,

Tachiki,

Morikawa

et al. 2023

Diagnostics

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Facial asymmetry is often seen in patients with skeletal mandibular prognathism and is associated with deformities in the maxillofacial and head regions. The maxillofacial deviation is three-dimensional and affects not only the lateral deviation of the mandible and midface, but also the cranium. This study conducted a three-dimensional morphological evaluation of the cranial base morphology of patients with skeletal mandibular prognathism (ANB < 0°, Wits < 0 mm) with the aim of examining the relationship between deformities of the head region and facial asymmetry. Data obtained from computed tomography conducted during the initial examination of patients with and without skeletal mandibular prognathism with facial asymmetry were used. Differences in the position of structures present in the cranial base were measured, and the association between cranial deformities and mandibular deviation was assessed. The middle cranial base area and the lateral deviation of the mandibular fossa were significantly larger in patients with facial asymmetry compared to those without facial asymmetry. In addition, a correlation between the amount of mandibular deviation and the area of the anterior cranial base was identified in patients with significant cranial deformity (p = 0.012). Given the identified association between the structure of the head region and facial asymmetry, further studies are needed to determine the factors implicated in the growth process.

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Section: Discussionmentioning

confidence: 99%