Quantitative skeletal maturation estimation using cone-beam computed tomography-generated cervical vertebral images: a pilot study in 5- to 18-year-old Japanese children

Byun, Bo Ram; Kim, Yong Il; Yamaguchi, Tetsutaro; Maki, Koutaro; Ko, Ching Chang; Hwang, Deok‐Sang; Park, Soo Byung; Son, Woo Sung

doi:10.1007/s00784-015-1415-6

Cited by 23 publications

(9 citation statements)

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“…There is a significant difference between men and women when the volume is in the range of 1500–3000 mm 3 . However, the explanation power of the regression model using the second cervical vertebra is 60.5%, which is lower than that reported in previous studies [ 15 , 16 ].…”

Section: Discussioncontrasting

confidence: 76%

Cervical Vertebral Body’s Volume as a New Parameter for Predicting the Skeletal Maturation Stages

Choi

Kim

Yamaguchi

et al. 2016

BioMed Research International

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This study aimed to determine the correlation between the volumetric parameters derived from the images of the second, third, and fourth cervical vertebrae by using cone beam computed tomography with skeletal maturation stages and to propose a new formula for predicting skeletal maturation by using regression analysis. We obtained the estimation of skeletal maturation levels from hand-wrist radiographs and volume parameters derived from the second, third, and fourth cervical vertebrae bodies from 102 Japanese patients (54 women and 48 men, 5–18 years of age). We performed Pearson's correlation coefficient analysis and simple regression analysis. All volume parameters derived from the second, third, and fourth cervical vertebrae exhibited statistically significant correlations (P < 0.05). The simple regression model with the greatest R-square indicated the fourth-cervical-vertebra volume as an independent variable with a variance inflation factor less than ten. The explanation power was 81.76%. Volumetric parameters of cervical vertebrae using cone beam computed tomography are useful in regression models. The derived regression model has the potential for clinical application as it enables a simple and quantitative analysis to evaluate skeletal maturation level.

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Section: Discussioncontrasting

confidence: 76%

Cervical Vertebral Body’s Volume as a New Parameter for Predicting the Skeletal Maturation Stages

Choi

Kim

Yamaguchi

et al. 2016

BioMed Research International

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“…Conversely, the bias that may occur when determining patients' skeletal maturity is inevitable and hard to quantify. 6 A number of studies tried to overcome this drawback by developing a quantitative method to estimate a CVM index 22,23,34,36,41 using many ratios of measurements derived from C2 to C5 vertebrae, which may be difficult to apply in clinical application.…”

Section: Discussionmentioning

confidence: 99%

Correlation between Cervical Vertebrae Volume Parameter and the Skeletal Maturation Status

Ayach

Hadad

2018

The Journal of Contemporary Dental Practice

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“…In recent years, dental cone-beam CT (CBCT) has been prevalently employed in dental surgery [ 19 – 21 ] and basic research [ 22 – 25 ]. In addition to the presurgical orthodontic, orthognathic, and endodontic treatment evaluations, CBCT images also frequently serve as a reference when extracting impacted lower third molars [ 16 , 26 ].…”

Section: Discussionmentioning

confidence: 99%

New quantitative classification of the anatomical relationship between impacted third molars and the inferior alveolar nerve

et al. 2015

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BackgroundBefore extracting impacted lower third molars, dentists must first identify the spatial relationship between the inferior alveolar nerve (IAN) and an impacted lower third molar to prevent nerve injury from the extraction. Nevertheless, the current method for describing the spatial relationship between the IAN and an impacted lower third molar is deficient. Therefore, the objectives of this study were to: (1) evaluate the relative position between impacted lower third molars and the IAN; and (2) investigate the relative position between impacted lower third molars and the IAN by using a cylindrical coordinate system.MethodsFrom the radiology department’s database, we selected computed tomography images of 137 lower third molars (from 75 patients) requiring removal and applied a Cartesian coordinate system by using Mimics, a medical imaging software application, to measure the distribution between impacted mandibular third molars and the IAN. In addition, the orientation of the lower third molar to the IAN was also measured, but by using a cylindrical coordinate system with the IAN as the origin.ResultsAccording to the Cartesian coordinate system, most of the IAN runs through the inferior side of the third molar (78.6 %), followed by the lingual side (11.8 %), and the buccal side (8.9 %); only 0.7 % is positioned between the roots. Unlike the Cartesian coordinate system, the cylindrical coordinate system clearly identified the relative position, r and θ, between the IAN and lower third molar.ConclusionsUsing the cylindrical coordinate system to present the relationship between the IAN and lower third molar as (r, θ) might provide clinical practitioners with a more explicit and objective description of the relative position of both sites. However, comprehensive research and cautious application of this system remain necessary.

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Quantitative skeletal maturation estimation using cone-beam computed tomography-generated cervical vertebral images: a pilot study in 5- to 18-year-old Japanese children

Abstract: There are high correlations between the skeletal maturation status and the ratios of the second cervical vertebra based on the remnant of dentocentral synchondrosis.

Cited by 23 publications

References 20 publications

Cervical Vertebral Body’s Volume as a New Parameter for Predicting the Skeletal Maturation Stages

Cervical Vertebral Body’s Volume as a New Parameter for Predicting the Skeletal Maturation Stages

Correlation between Cervical Vertebrae Volume Parameter and the Skeletal Maturation Status

New quantitative classification of the anatomical relationship between impacted third molars and the inferior alveolar nerve

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