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Volume 69 (2015)
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Shoichiro Kokabu2015 Volume 69 Issue 1 Pages 1-5
Published: 2015
Released on J-STAGE: July 02, 2023
JOURNAL FREE ACCESSDental implants are a very effective and useful treatment for the reconstruction of occlusions. For a successful treatment outcome, high-quality bone is required. Osteoblasts and marrow adipocytes come from common progenitor cells known as the bone marrow mesenchymal stem cell. During aging, and in some pathological conditions such as osteoporosis, the balance of osteoblastogenesis and adipogenesis in the bone marrow mesenchymal stem cell population is disrupted such that adipogenesis is increased with respect to osteoblastogenesis, consequently resulting in decreased bone mass. Although the molecular mechanisms controlling the balance between osteoblastogenesis and adipogenesis in adult bone are of great interest, the exact nature of the signals regulating this process remains to be determined. Recently, we reported the mechanisms by which BMP3, a bone morphogenetic protein, 3 and TLE3, a transcriptional cofactor, suppress osteoblastogenesis and enhance adipogenesis of bone marrow mesenchymal stem cells. Taken together, these studies suggested that reduced expression or activity of BMP3 or TLE3 might establish novel methods to maintain and reconstruct high-quality bone in a therapeutic setting.View full abstractDownload PDF (637K) -
Tonami Ikuta2015 Volume 69 Issue 1 Pages 6-12
Published: 2015
Released on J-STAGE: July 03, 2023
JOURNAL FREE ACCESSDental health-care personnel are at risk from exposure to, and possible infection by, infectious organisms. The goal of dental infection control practices is to provide a safe working environment that will reduce the risk of health-care associated infections among patients and occupational exposure among dental health-care personnel. Unfortunately, dental infection control practices in dental offices remain limited in Japan. The majority of exposures in dentistry are preventable, and methods to reduce the risk of infectious contact have included various standard precautions. Information is provided about dental infection control practices in one dental office.View full abstractDownload PDF (803K) -
Chie Onizuka, Momoko Nakamura, Naomi Maeda, yuka Sugiyama, Masami Naka ...2015 Volume 69 Issue 1 Pages 13-18
Published: 2015
Released on J-STAGE: July 02, 2023
JOURNAL FREE ACCESSClinical practice is positioned as an important subject for learning by practice the knowledge, skills and background knowledge of medical professionals. Students of the school of oral health sciences have to learn throughout a 4-year curriculum. Specifically, they are given clinical practice to learn the skills of dental hygienists at University Hospital in the third year. The purposes of the present study were to analyze the changes in students' goals and task-values by conducting classification of goals before and after the clinical practice, and to evaluate whether the clinical training was connected with studentsʼ learning motivation. Studentsʼ goals increased in terms of their interest concerning the social environment after the clinical practice. In addition, utility value regarded as autonomous motivation was increased after the clinical practice. It can be suggested that the experience of clinical practice is effective in motivating the students to learn.View full abstractDownload PDF (1016K)
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