Kouji Katsura

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OBJECTIVE Oral health status is a risk factor for postradiation bone complications (also known as osteoradionecrosis [ORN]), and oral health care is an important element in the prevention of this condition. Some authors recommend extracting teeth with a questionable prognosis and either gross mobility or periodontal disease. However, the criteria for making(More)
Matrix metalloproteinase (MMP) is known to be involved in the initial and progressive stages of cancer development, and in the aggressive phenotypes of cancer. This study examines the association of single nucleotide polymorphisms in promoter regions of MMP-1 and MMP-3 with susceptibility to oral squamous cell carcinoma (OSCC). We compared 170 Japanese OSCC(More)
In this article we report a case of desmoplastic ameloblastoma in which chronological changes in the early development can be observed on dental radiographs. The tumour grew very slowly and did not appear to have a strong potential for local extension like typical ameloblastomas. Radiological findings of our case suggest the tumour arose from the(More)
OBJECTIVE We sought to assess the reliability of repeated sonography in the detection of cervical lymph node metastases at the earliest stage during a follow-up period in patients with stage I or stage II carcinoma of the tongue. STUDY DESIGN Eighteen consecutive patients with stage I or II squamous cell carcinoma of the tongue were included. When(More)
The changes in dose distribution caused by backscatter radiation from a common commercial dental alloy (Au-Ag-Pd dental alloy; DA) were investigated to identify the optimal material and thicknesses of a dental device (DD) for effective prevention of mucositis. To this end, 1 cm3 of DA was irradiated with a 6-MV X-ray beam (100 MU) in a field size of 10 × 10(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)
AIM We hypothesized that feeling mucosal dryness in one body region and the skin may be associated with dryness in other regions and that there are common background factors for dryness. In an earlier web-based survey, we reported prevalence figures of dry eyes, nose, mouth, skin, and vagina. In the present study, additional analyses were made to(More)
To investigate the possibility of predicting salivation ability using pulsed Doppler ultrasonography. Thirty healthy volunteers were enrolled in this study. The blood flow velocity in the submandibular gland before and during acid stimulation was recorded by pulsed Doppler ultrasonography. The changes in the maximum blood flow velocity (V max) and minimum(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)