Toru Deguchi
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View article: Shape detection of cervical vertebrae growth stage using “No Coding” Deep Learning - Google’s Teachable Machine tool
Shape detection of cervical vertebrae growth stage using “No Coding” Deep Learning - Google’s Teachable Machine tool Open
Objective: Prediction of skeletal growth has always been an interest in the field of orthodontics. The shape of the cervical vertebrae was found to be correlated to different growth stages. Several studies have used machine learning to ide…
View article: Variability associated with maxillary infrazygomatic crest and palatal bone width, height, and angulation in subjects with different vertical facial growth types: a retrospective cone-beam computed tomography study
Variability associated with maxillary infrazygomatic crest and palatal bone width, height, and angulation in subjects with different vertical facial growth types: a retrospective cone-beam computed tomography study Open
Objectives To assess the infrazygomatic crest (IZC) and palatal bone width, height, and angulation in patients with different vertical facial growth types as potential miniscrew insertion sites. Materials and Methods In this retrospective …
View article: Long-term evaluation of an adult with a skeletal Class II with severe crowding and periodontitis treated with an interdisciplinary approach with lingual brackets and miniscrews
Long-term evaluation of an adult with a skeletal Class II with severe crowding and periodontitis treated with an interdisciplinary approach with lingual brackets and miniscrews Open
Orthodontic treatment for adults with severe periodontal disease requires an interdisciplinary approach. An adequate periodontal diagnosis and extensive initial treatment are important for successful orthodontic treatment. The combination …
View article: Skeletal and dentoalveolar effects of miniscrew-assisted rapid palatal expansion based on the length of the miniscrew: a randomized clinical trial
Skeletal and dentoalveolar effects of miniscrew-assisted rapid palatal expansion based on the length of the miniscrew: a randomized clinical trial Open
Objectives To compare skeletal and dentoalveolar changes of miniscrew-assisted rapid palatal expansion (MARPE) according to the length of the miniscrews. Materials and Methods This two-arm parallel-randomized controlled trial included 32 a…
View article: Assessment of malalignment factors related to Invisalign treatment time aided by automated imaging processes
Assessment of malalignment factors related to Invisalign treatment time aided by automated imaging processes Open
Objectives To identify predictors regarding the type and severity of malocclusion that affect total Invisalign treatment duration based on an intraoral digital scan. Materials and Methods The subjects of this retrospective clinical cohort …
View article: Quantitative evaluation of training method in placing miniscrews in orthodontic graduate program
Quantitative evaluation of training method in placing miniscrews in orthodontic graduate program Open
Background The purpose of this study was to assess the effectiveness of training residents in an orthodontic program in the placement of miniscrews by using cone beam computed tomography (CBCT) images. A total of 90 miniscrews were placed …
View article: Thread shape, cortical bone thickness, and magnitude and distribution of stress caused by the loading of orthodontic miniscrews: finite element analysis
Thread shape, cortical bone thickness, and magnitude and distribution of stress caused by the loading of orthodontic miniscrews: finite element analysis Open
Cortical bone thickness is assumed to be a major factor regulating miniscrew stability. We investigated stress distribution in two miniscrews with different thread shapes (type A and B) and in cortical bone of three different thicknesses u…
View article: Accuracy of three-dimensional printed models derived from cone-beam computed tomography
Accuracy of three-dimensional printed models derived from cone-beam computed tomography Open
Objectives To determine the accuracy of three-dimensional (3D) printed models fabricated from cone-beam computed tomography (CBCT) scans of human mandibular dry skulls in comparison with models derived from intraoral scanner (IOS) data. Ma…
View article: Aging Alters Cervical Vertebral Bone Density Distribution: A Cross-Sectional Study
Aging Alters Cervical Vertebral Bone Density Distribution: A Cross-Sectional Study Open
Osteoporosis reduces bone mineral density (BMD) with aging. The incidence of cervical vertebral injuries for the elderly has increased in the last decade. Thus, the objective of the current study was to examine whether dental cone beam com…
View article: Influence of insertion depth on stress distribution in orthodontic miniscrew and the surrounding bone by finite element analysis
Influence of insertion depth on stress distribution in orthodontic miniscrew and the surrounding bone by finite element analysis Open
We aimed to elucidate stress distribution in miniscrews and the surrounding bone when miniscrews inserted at different depths were implanted vertically or obliquely. The distributions of the equivalent stress on the screw surface and the m…
View article: Relationship between olfaction and maxillofacial morphology in children with malocclusion
Relationship between olfaction and maxillofacial morphology in children with malocclusion Open
Objectives Functional problems, including nasal flow problems, are associated with specific skeletal and dental features. Further, maxillary expansion has been associated with nasal airway resistance alterations. This study aimed to invest…
View article: Titanium surface treatment by calcium modification with acid-etching promotes osteogenic activity and stability of dental implants
Titanium surface treatment by calcium modification with acid-etching promotes osteogenic activity and stability of dental implants Open
The aim of the present study was to prove the hypothesis that acid-etched pure titanium implants with applied calcium modification obtains remarkably high osteogenic activity and high stability in osseous tissue. To evaluate the surface st…
View article: A Comparative Assessment of Orthodontic Treatment Outcomes of Mild Skeletal Class III Malocclusion Between Facemask and Facemask in Combination with a Miniscrew For Anchorage in Growing Patients: <i>A Single-center, Prospective Randomized Controlled trial</i>
A Comparative Assessment of Orthodontic Treatment Outcomes of Mild Skeletal Class III Malocclusion Between Facemask and Facemask in Combination with a Miniscrew For Anchorage in Growing Patients: <i>A Single-center, Prospective Randomized Controlled trial</i> Open
Objectives To investigate the hypothesis that there is difference in the treatment outcomes of milder skeletal Class III malocclusion between facemask and facemask in combination with a miniscrew in growing patients. Materials and Methods …
View article: Comparison of changes in irregularity and transverse width with nickel-titanium and niobium-titanium-tantalum-zirconium archwires during initial orthodontic alignment in adolescents: A double-blind randomized clinical trial
Comparison of changes in irregularity and transverse width with nickel-titanium and niobium-titanium-tantalum-zirconium archwires during initial orthodontic alignment in adolescents: A double-blind randomized clinical trial Open
Objectives: The purpose of this prospective, double-blind, randomized clinical trial was to compare the clinical efficiency of nickel-titanium (NiTi) and niobium-titanium-tantalum-zirconium (TiNbTaZr) archwires during initial orthodontic a…
View article: Conditions and calibration to obtain comparable grey values between different clinical cone beam computed tomography scanners
Conditions and calibration to obtain comparable grey values between different clinical cone beam computed tomography scanners Open
CBCT can assess BMD, while calibration of absolute measures is necessary to obtain comparable values between different scanners that are currently used to assess oral bone quantity and quality.