Comprehensive dental treatment of a patient with skeletal Class II, deepbite, severely narrow arches, and scissor bite

Sasaki, Au; Fujimotot, Mai; Sonokawa, Takuya; Fujita, Takafumi; Yamaguchi, Koji; Kato, Yuto; Otsuka, Yuichiro; Suda, Naoto

doi:10.1016/j.xaor.2022.04.004

Cited by 2 publications

(2 citation statements)

References 20 publications

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“…Scissors-bite is a malocclusion manifested with an abnormal buccallingual position in the posterior teeth. 1 Severe scissors-bite that affects multiple posterior teeth is known as "Brodie syndrome" or "Brodie bite", which was first proposed by Allan G. Brodie in 1952. 2 The prevalence rate of scissors-bite is 0.4%-2.7% in adults, 3 while it is even lower in Brodie syndrome adults, with just 1%-1.5%.…”

Section: Introductionmentioning

confidence: 99%

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Three‐dimensional analysis of mandibular morphology asymmetry and temporomandibular joint position in patients with unilateral Brodie bite

Wu,

Jia,

et al. 2024

Orthod Craniofacial Res

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ObjectivePrevious studies have shown unilateral posterior crossbite is associated with mandibular asymmetry in morphology and position. However, it remains unclear whether unilateral Brodie bite plays a similar role in mandibular development. Therefore, this study aims to investigate the morphological and positional symmetry of mandibles in patients with unilateral Brodie bite by three‐dimensional anaylsis.MethodsFourteen patients with unilateral Brodie bite (mean age 18.43 ± 4.24 years) and fourteen sex‐ and age‐matched patients with normal occlusion (mean age 18.07 ± 5.48 years) underwent cone‐beam computed tomography (CBCT) scans. 3D surface mesh models of their mandibles were established using Mimics Research 19.0. The surface matching percentage was compared between the original and mirrored mandible by Geomagic Control X software. Furthermore, the dimension and position of the temporomandibular joint (TMJ) were determined for both groups using InVivoDental 5.0.ResultsFor surface‐to‐surface deviation analysis, the percentage of mismatch in patients with unilateral Brodie bite was significantly higher than the control group at ±0.50 mm, ±0.75 mm, and ±1.00 mm tolerance (P < .001). In patients with unilateral Brodie syndrome, the condyles on the scissors‐bite side showed a significantly more anterior position (P = .03), greater medial inclination (P < .01), and larger posterior TMJ space (P = .01) than the non‐scissors‐bite side.ConclusionPatients with unilateral Brodie bite exhibit a more asymmetrical mandibular morphology, with a greater anterior condylar position and posterior joint space on the scissors‐bite side, indicating that early diagnosis and treatment may be necessary for patients with unilateral Brodie bite.

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Section: Introductionmentioning

confidence: 99%

“…Scissors‐bite is a malocclusion manifested with an abnormal buccal‐lingual position in the posterior teeth 1 . Severe scissors‐bite that affects multiple posterior teeth is known as “Brodie syndrome” or “Brodie bite”, which was first proposed by Allan G. Brodie in 1952 2 .…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensional analysis of mandibular morphology asymmetry and temporomandibular joint position in patients with unilateral Brodie bite

Wu,

Jia,

et al. 2024

Orthod Craniofacial Res

View full text Add to dashboard Cite

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Extraction of Tooth Cusps based on DBSCAN Density Clustering and Neighborhood Search Algorithm

Yang,

Zhu,

Zhou

et al. 2024

Crit Rev Biomed Eng

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A good tooth cusp extraction is helpful in evaluating the effect of cosmetic dental work in virtual tooth surgery. We propose a new tooth cusp extraction, which integrates the DBSCAN (density-based spatial clustering of applications with noise) clustering algorithm with the neighborhood search algorithm to extract tooth cusp from a three-dimensional cloud-point tooth model. This method used the point cloud height and curvature to screen out the dented point set. Then we employ the DBSCAN clustering algorithm to segment different feature regions of the tooth surface and generate the candidate point set. Finally, the candidate point set was accurately located at the tooth apex through the neighborhood search algorithm and the traversal search method of non-maximum suppression. The experimental results show that the proposed method is superior to the traditional watershed algorithm-based methods by calculating the recall rate and accuracy rate, and also has higher extraction speed and extraction precision than manual extraction methods.

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Comprehensive dental treatment of a patient with skeletal Class II, deepbite, severely narrow arches, and scissor bite

Cited by 2 publications

References 20 publications

Three‐dimensional analysis of mandibular morphology asymmetry and temporomandibular joint position in patients with unilateral Brodie bite

Three‐dimensional analysis of mandibular morphology asymmetry and temporomandibular joint position in patients with unilateral Brodie bite

Extraction of Tooth Cusps based on DBSCAN Density Clustering and Neighborhood Search Algorithm

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