Ken-ichiro Ejima

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OBJECTIVES The aim of this study was to examine the relationship between the roof of the glenoid fossa (RGF) thickness and condyle morphology and the influence of the number of remaining teeth and age. METHODS Cone beam CT data sets from 77 asymptomatic European patients were analysed retrospectively in this study. The thinnest area of RGF was identified(More)
OBJECTIVE The aim of this study was to evaluate the usefulness of magnetic resonance imaging (MRI) in measuring thickness of the roof of the glenoid fossa (RGF) of the temporomandibular joint (TMJ). STUDY DESIGN Minimum RGF thickness in 95 TMJs of 59 patients with temporomandibular disorders were measured and compared on both sagittal-section MRI and(More)
OBJECTIVE The aim of this study was to investigate the stimulatory effects of low-level laser therapy (LLLT) on the stability of mini-implants in rat tibiae. BACKGROUND DATA In adolescent patients, loosening is a notable complication of mini-implants used to provide anchorage in orthodontic treatments. Previously, the stimulatory effects of LLLT on bone(More)
OBJECTIVE The purpose of this clinical study was to investigate the minimum thickness of the roof of the glenoid fossa (RGF) of grossly normal temporomandibular joints (TMJ) and to correlate this with patient gender, age and the morphological classification of the mandibular head. METHODS The study was performed on 191 TMJs from 109 patients (25 male and(More)
We comparatively examined the trunk musculature and prezygapophyseal angle of mid-trunk vertebra in eight urodele species with different locomotive modes (aquatic Siren intermedia, Amphiuma tridactylum, Necturus maculosus and Andrias japonicus; semi-aquatic Cynops pyrrhogaster, Cynops ensicauda; and terrestrial Hynobius nigrescens, Hynobius lichenatus and(More)
OBJECTIVES To evaluate and compare the image validity of a cone beam CT machine for dental use (3DX) and the latest medical CT system, multidetector row helical CT (MDCT). METHODS A dried right maxilla of an Asian adult was used as a phantom. It was cut from the zygomatic process towards the midline, parallel to the midline plane, into eight slices of 2(More)
PURPOSE This study was performed to determine the accuracy of measurements of bone mineral density (BMD) and cortical bone thickness (CBT) at miniscrew implantation sites in small animals and to verify the usefulness of in vivo microcomputed tomography (micro-CT). MATERIALS AND METHODS Rat femurs were scanned before and after placing miniscrews using in(More)
Ahmad Abdelkarim Murillo JN Abreu Ebtihal Alabdeen Veeratrishul Allareddy Ali Alqerban Yoshinori Arai Kazuyuki Araki Masao Araki Eiichiro Ariji Yoshiko Ariji Junichi Asaumi Ulkem Aydin Mihaela Baciut Guniz Baksi Murat Beyzadeoglu Ria Bogaerts Napat Limchaichana Bolstad Sharon L Brooks Marius Bud Paulo Sérgio Flores Campos Fiona Carmichael Curtis SK Chen(More)
Olumide Agbaje Wisam al-Rawi Ebtihal Alabdeen Veeratrishul Allareddy Yoshinori Arai Kazuyuki Araki Masao Araki Eiichiro Ariji Yoshiko Ariji Ulkem Aydin Ria Bogaerts Curtis SK Chen Tohru Chikui Soon-Chul Choi Paulo Henrique Couto Souza Ken-ichiro Ejima Francisco Eraso Ademir Franco Francois Gabioud Tazuko K Goto Koji Hashimoto Yoshihiko Hayakawa Takafumi(More)
As part of quality assessment of a teleradiology program we evaluated the validity of patient information received, the quality of panoramic radiography imaging in Laos, and the ability of a Laotian radiologist to detect temporomandibular joint abnormalities. The amount of patient information gathered from 2,021 scans of panoramic radiographs was evaluated(More)