Toshio DeguchiShow email address
Professor, Orthodontic Postgraduate Program, Faculty of Dentistry, National University of Singapore; professor emeritus, Graduate School, Matsumoto Dental University, ...
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Toshio Deguchi:Expert Impact
Concepts for whichToshio Deguchihas direct influence:Deciduous teeth,Chincup therapy,Temporomandibular joint,Human deciduous teeth,Tooth movement,Periodontal membrane,Class iii,Normal occlusion.
Toshio Deguchi:KOL impact
Concepts related to the work of other authors for whichfor which Toshio Deguchi has influence:Tooth movement,Root resorption,Orthodontic treatment,Gingival crevicular fluid,Class iii,Ceramic brackets,Periodontal ligament.
KOL Resume for Toshio Deguchi
Professor, Orthodontic Postgraduate Program, Faculty of Dentistry, National University of Singapore; professor emeritus, Graduate School, Matsumoto Dental University, Shiojiri, Nagano, Japan
Professor, Orthodontic Postgraduate Program, Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore and Hospital, Singapore; professor and head, Unit of Orthodontics, Department of Hard Tissue Research, Graduate School of Oral Medicine, Matsumoto Dental University, Shiojiri, Nagano-ken, Japan
Institute of Dentistry, Matsumoto Dental University 1780 Gobara, Hirooka, Shiojiri, Nagano 399-0781, JAPAN
Unit of Orthodontics, Department of Hard Tissue Research, Graduate School of Oral Medicine, MDU, Japan
Orthodontic Postgraduate Program, Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore (NUS), Singapore
Graduate School of Oral Medicine, and
Institute for Oral Science, Matsumoto Dental University, 1780 Gobara Hirooka, Shiojiri, Nagano 399-0781, Japan
Professor and head, Unit of Orthodontics, Division of Hard Tissue Research, Graduate School, Matsumoto Dental University, Nagano, Japan
aProfessor, Department of Orthodontics, Matsumoto Dental University, School of Dentistry, Shiojiri City, Nagano-ken, Japan 399-0781; Research Professor, International Centre for Excellence in Dentistry, Eastman Dental Institute, University College London, United Kingdom
Department of Orthodontics, Eastman Dental Institute, University of London, 123 Gray's Inn Road, London WC1X 8TZ, UK
aProfessor, Department of Orthodontics, Matsumoto Dental University, School of Dentistry, Nagano-ken, Japan; Visiting Professor, International Centre for Excellence in Dentistry, Eastman Oral Health Care Science, University of London. bIn private practice, Tokushima City, Japan. cProfessor and Head, Department of Orthodontics and Director of Orthodontic Research, Eastman Dental Institute, University of London. dEditor, AJO/DO, University of Illinois, College of Dentistry, Chicago
Department of Orthodontics, Matsumoto Dental University, Shiojiri city, Nagano-ken, Japan.
Nagano, Japan, and Ann Arbor, Mich
Department of Orthodontics, Matsumoto Dental University, Nagano-ken, Japan.
Shiojiri City, Nagano, Japan
Department of Orthodontics, Matsumoto Dental College, Shiojiri, Japan
Department of Orthodontics, Matsumoto Dental College, Shiojiri-Nagano, 399-07, Japan
Indianapolis, Ind., USA
Department of Orthodontics, Matsumoto Dental College, 399-07, Shiojiri, Japan
Matsumoto Dental College, Nagano, Japan.
Department of Orthodontics, Matsumoto Dental College, Shiojiri, Nagano‐Ken Japan
|headchincup appliance kilograms||#1|
|erupting successional tooth||#1|
|odontoclasts histochemical demonstration||#1|
|lysosomes multinucleate cells||#1|
|chincup therapy purpose||#1|
|migrated gingival epithelium||#1|
|crown deciduous tooth||#1|
|histological details shedding||#1|
|posterior joint cavity||#1|
|narrow necks tissue||#1|
|narrow tissue regions||#1|
|multinucleate cells predentine||#1|
|tooth surface exfoliation||#1|
|longterm chincup appliance||#1|
|multinucleate cells odontoclasts||#1|
|nonmineralized predentine matrix||#1|
|study multinucleate odontoclasts||#1|
|temporal bone longterm||#1|
|histological study exfoliation||#1|
|dentine degenerated odontoblasts||#1|
|predentine surface attachment||#2|
|controls anb angle||#2|
|maxillary arch analysis||#2|
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Prominent publications by Toshio Deguchi
Interleukin (IL)-1β, IL-6, Tumor Necrosis Factor-α, Epidermal Growth Factor, and β2-Microglobulin Levels Are Elevated in Gingival Crevicular Fluid during Human Orthodontic Tooth Movement
[ PUBLICATION ]
Bone remodeling is a complex process regulated by several mediators. Recent work has revealed that cytokines and growth factors have significant effects on bone cell metabolism. However, little information is available concerning the production of cytokines during orthodontic tooth movement in human subjects, and there is no non-invasive model for determining the production of cytokines. Therefore, the purpose of this study was to identify and quantify the various cytokines in human ...
|Known for Epidermal Growth Factor | Tooth Movement | Gingival Crevicular | Cytokines Gcf | Tumor Necrosis|
Increase of transforming growth factor-β1 in gingival crevicular fluid during human orthodontic tooth movement
[ PUBLICATION ]
The purpose of this study was to identify and quantify transforming growth factor-beta 1 (TGF-beta 1) in human gingival crevicular fluid, and to investigate changes during orthodontic tooth movement. Twelve patients (mean age, 14.4 yr) participated. An upper canine of each patient having one treatment for distal movement served as the experimental tooth; the contralateral and antagonistic canines were used as controls. The gingival crevicular fluid around the experimental and two control ...
|Known for Tooth Movement | Gingival Crevicular Fluid | Growth Factor | 1 Tgf | Upper Canine|
Ultrastructural features of odontoclasts that resorb enamel in human deciduous teeth prior to shedding
[ PUBLICATION ]
Three dental hard tissues, i.e., cementum, dentin, and enamel, are resorbed by multinucleated cells referred to as "odontoclasts." These cells have morphological and functional characteristics similar to those of bone-resorbing osteoclasts. However, concerning enamel resorption, which is a process that may occur during tooth eruption, satisfactory ultrastructural data on odontoclastic resorption are still lacking. Ultrastructural and histochemical characteristics of odontoclasts ...
|Known for Ruffled Border | Enamel Surface | Electron Microscopy | Human Deciduous | Teeth Prior|
Facial reconstruction techniques used in forensic anthropology require knowledge of the facial soft tissue thickness of each race if facial features are to be reconstructed correctly. If this is inaccurate, so also will be the reconstructed face. Knowledge of differences by age and sex are also required. Therefore, when unknown human skeletal remains are found, the forensic anthropologist investigates for race, sex, and age, and for other variables of relevance. Cephalometric X-ray ...
|Known for Japanese Children | Soft Tissue | Sex Age | Forensic Anthropology | Facial Features|
Odontoclastic Resorption at the Pulpal Surface of Coronal Dentin Prior to the Shedding of Human Deciduous Teeth
[ PUBLICATION ]
Histological and histochemical observations of more than 150 extracted human deciduous teeth revealed that, prior to shedding, odontoclastic resorption as a rule takes place at the pulpal surface of coronal dentin. We also found that this phenomenon occurs in all kinds of deciduous teeth. The process of this internal resorption of coronal dentin of deciduous teeth clearly showed time-related histological changes. During the time the roots were actively being resorbed, the pulpal tissue ...
|Known for Deciduous Teeth | Pulpal Surface | Odontoclastic Resorption | Coronal Dentin | Multinucleate Odontoclasts|
Cytodifferentiation of the odontoclast prior to the shedding of human deciduous teeth: An ultrastructural and cytochemical study
[ PUBLICATION ]
BACKGROUND: In human deciduous teeth, odontoclastic resorption takes place at the pulpal surface of the coronal dentine prior to shedding, and this resorption shows clear time-related histological changes (Sahara et al., 1992).
METHODS: Using this phenomenon as an observation system, we examined the cytodifferentiation of human odontoclasts by light and electron microscopy. For a histochemical marker of odontoclast differentiation and function, tartrate-resistant acid phosphatase (TRAP) ...
|Known for Resorption Odontoclasts | Deciduous Teeth | Ruffled Borders | Resorbed Surface | Mononuclear Cells|
The purpose of the present study is to examine the effects of an orthopedic force produced by chincup treatment in patients with Class III malocclusion. Anteroposterior maxillary and mandibular changes were examined as were changes in the vertical dimension. Further, the possibility of posterior displacement of temporomandibular joints in treated Class III subjects was evaluated. Serial lateral headfilms of 22 young females (average age, 9 years), who had received chincup therapy were ...
|Known for Chincup Therapy | Class Iii | Posterior Displacement | 9 Years | Temporomandibular Joints|
[ PUBLICATION ]
INTRODUCTION: The purpose of this pilot study was to use cone-beam computed tomography (CBCT) to determine the volumes of the maxilla and the mandible in subjects with skeletal Class I, Class II, and Class III malocclusions. Hypothesis 1 was that the volume (size) of a skeletal Class II maxilla is larger than those of Class I and Class III. Hypothesis 2 was that the volume of a skeletal Class III mandible is larger than those of Class I and Class II.
METHODS: Thirty women patients were ...
|Known for Computed Tomography | Class Iii | Maxilla Mandible | Cone Beam | Volume Compared|
Effect of age on alveolar bone turnover adjacent to maxillary molar roots in male rats: A histomorphometric study
[ PUBLICATION ]
DESIGN: A total of 110 male Wistar rats ranging in age from 6 to 100 weeks were used for this study. Histomorphometric parameters were measured in fluorescence-labeled undecalcified ground and paraffin-embedded decalcified sections of the alveolar wall around the disto-lingual roots of the maxillary ...
|Known for Alveolar Bone Turnover | Molar Roots | Bone Formation | Age Rats | Histomorphometric Study|
Cementum-Like Tissue Deposition on the Resorbed Pulp Chamber Wall of Human Deciduous Teeth Prior to Shedding
[ PUBLICATION ]
In the later stage of exfoliation in human deciduous teeth, odontoclastic resorption takes place at the pulpal surface of the coronal dentin. However, this resorption does not continue until the teeth are shed, and the resorbed pulp chamber wall is usually repaired by cementum-like tissue deposition. In this study, we examined the formation and characteristics of the cementum-like hard tissue on the resorbed dentin surface in the pulp chamber of deciduous teeth prior to shedding. The ...
|Known for Deciduous Teeth | Electron Microscopy | Tissue Deposition | Tooth Resorption | Pulp Chamber|
The laser-aided removal of ceramic brackets from enamel surfaces was compared between two different adhesives. The selected bonding materials were Bis-GMA composite resin and 4-META MMA resin. Debonding forces were measured as the shear bond strength, perpendicular to the brackets. Debonding force, debonding time, total illuminated laser energy, and Modified Adhesive Remnant Index were discussed. Laser illumination was very effective for debonding in both resin groups. Enamel fracture ...
|Known for Laser Debonding | Bonding Materials | Enamel Fracture | Tooth Surface | Shear Bond Strength|
INTRODUCTION: Facial proportions are of interest in orthodontics. The null hypothesis is that there is no difference in golden proportions of the soft-tissue facial balance between Japanese and white women.
METHODS: Facial proportions were assessed by examining photographs of 3 groups of Asian women: group 1, 30 young adult patients with a skeletal Class 1 occlusion; group 2, 30 models; and group 3, 14 popular actresses. Photographic prints or slides were digitized for image analysis. ...
|Known for Golden Proportion | Facial Height | Photographic Prints | Continental Ancestry | Angle Class|
Craniofacial features of patients with Class III abnormalities: Growth-related changes and effects of short-term and long-term chincup therapy
[ PUBLICATION ]
The craniofacial features of patients with Class III abnormalities, including growth-related changes and effects of short-term and long-term chincup therapy, were studied. Twenty female subjects were treated with chincups and an orthopedic force of 500 g for 31 months (short-term treatment group). Another 36 female patients were treated with chincups and a force of 250 to 300 g for 86 months (long-term treatment group). All subjects treated with chincups had lateral cephalograms taken ...
|Known for Class Iii | Anb Angle | Wits Appraisal | Chincup Therapy | Term Treatment|
Morphology of the Temporomandibular Joint in Skeletal Class III Symmetrical and Asymmetrical Cases: a Study by Cephalometric Laminography
[ PUBLICATION ]
The aetiology of asymmetric growth in the mandible is not well understood. Previous studies have indicated that the functional lateral shift of the mandible in the period of prepubertal growth may translate to a true skeletal asymmetry, exclusively in skeletal Class III malocclusion. This asymmetry develops more characteristic features during the pubertal and post-pubertal growth periods. Early correction of a functional lateral shift of the mandible is recommended. The purpose of this ...
|Known for Class Iii | Temporomandibular Joint | Lateral Shift | Skeletal Asymmetry | Orthodontic Treatment|