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Study of dental arch changes in early posttreatment period –Comparison between Begg and standard edgewise techniques–
orthodontic waves 74 (2015) 23–26
increased with the grade. The differences were small in the totals of faculty members, students, new patients, and patients assigned to students during the three years. These results suggest the need to discuss the timing of annual reports. On the other hand, great differences were found in the totals of those issues among institutions. Also important is promptly conducting the field research at all training institutions to survey the problems that cannot cover the annual reports and the contents of basic and clinical education.
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Original article Study of dental arch changes in early posttreatment period – Comparison between Begg and standard edgewise techniques– Akishige Kato, Takashi Kameda, Kazuto Terada Department of Orthodontics, The Nippon Dental University School of Life Dentistry at Niigata, Japan Orthod Waves–Jpn Ed 2014;73(3):125–136
http://dx.doi.org/10.1016/j.odw.2014.12.008 Other Actual conditions of the training institutions approved by the Japanese Orthodontic Society for postgraduate education of accredited orthodontists: Part II. From results of the clinical training institution annual reports in 2009, 2010, and 2011 Teruo Asano 1, Kazuhito Arai 1, Junichiro Iida 1, Hiroyuki Ishikawa 1, Noriyuki Kitai 1, Kazuto Kuroe 1, Shuichiro Sawa 1, Kazuto Terada 1, Yoshiki Nakamura 1, Naoyuki Matsumoto 1, Noriyoshi Shimizu 2,3 1
Committee for Postgraduate Education and Training and for Examination of Training Institutions of the Japanese Orthodontic Society in 2012 and 2013, Japan 2 Department of Orthodontics, Faculty of Dentistry, Nihon University, Japan 3 Chairperson of Committee for Examination of Training Institutions of the Japanese Orthodontic Society in 2008 and 2009, Japan Orthod Waves–Jpn Ed 2014;73(3):97–107
The purpose of this study was to assess actual conditions in clinical training institutions for postgraduate education and to provide the materials for enhancing this education by tallying the data of annual reports from 2009 to 2011. The numbers of the clinical institutions were 165, 195, and 192. The managers of clinical institutions were of three types: accredited orthodontist instructor, board certificated orthodontist, and both instructor and board certificated. The proportion of each type was about 30% during three years. About 30% of the institutions had enrolments of postgraduate students. The totals of students were about 100, and about 30% of them were in the first grade. The total of new orthodontic patients a year was estimated at 20,000, and the institutional average was about 100. The average of new patients was almost half that of basic institutions in comparison. The average number of patients assigned to the students reached all achievement goals in clinical training except permanent dentition and treatment experiences of the first grade in 2009. The number of patients assigned to the students increased in the upper grade. The differences were small in the totals of students, new patients, and patients assigned to students during the three years. These results suggest the need to discuss the timing of annual reports. On the other hand, great differences were found in the totals of these issues among institutions. Also important is promptly conducting the field research not only at the basic institutions, but also at the clinical institutions to survey the problems that cannot cover the annual reports and the clinical education. http://dx.doi.org/10.1016/j.odw.2014.12.009
The dental arch forms are changing before treatment and at posttreatment. Changes in posttreatment including postretention are a serious concern for orthodontists. Multivariate analyses were performed to investigate these dental arch changes at three time points: before treatment, posttreatment, and postretention. Cast models obtained from 31 adults treated with multibracket appliances (16, treated with Begg appliances [group B]; and 15 standard edgewise appliances [group E]) with premolar extraction, passed at least 1 year of postretention. The analyses were restricted to mandibular dental arches and incisor occlusion. In a comparison of the period of treatment and posttreatment, correlations were observed in the intercanine width minus the intercanine lingual and intercanine lingual (group B), and the intermolar lingual (group E). Factor analyses of the posttreatment values revealed that the first factors in dental arch changes were the irregularity index and dental arch width in group B, and the irregularity index and intercanine width in group E. The second factors were overjet and the canine labiolingual inclination in group B, and first molar changes in group E. Multiple regression analyses showed that the irregularity index was related to intermolar width in group B, and to intercanine width and inside arch length in group E. These results suggest that relapse of mandibular anterior crowding in the early posttreatment period is related to changes in the canine, and the first molar is due to the differences of treatment mechanics. http://dx.doi.org/10.1016/j.odw.2014.12.010 Original article Clinical investigation into the prevalence of permanent teeth with amelogenesis imperfecta by Department of Orthodontics, Hiroshima University Nanae Oki 1, Masahide Motokawa 2, Ryo Kunimatsu 2, Naoto Hirose 2, Yuki Yoshimi 2, Kotaro Tanimoto 2 1
Department of Orthodontics, Division of Dental Sciences Major, Hiroshima University Graduate School of Biomedical & Health Sciences, Japan 2 Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Japan Orthod Waves–Jpn Ed 2014;73(3):137–142
Occurrence of amelogenesis imperfecta (AI) in permanent teeth varies in each patient. AI has several manifestations, such as white spot, yellow appearance and enamel loss. These symptoms frequently accompany decayed crowns of teeth. It is considered that AI is associated with genetic, local, or environmental factors.
increased with the grade. The differences were small in the totals of faculty members, students, new patients, and patients assigned to students during the three years. These results suggest the need to discuss the timing of annual reports. On the other hand, great differences were found in the totals of those issues among institutions. Also important is promptly conducting the field research at all training institutions to survey the problems that cannot cover the annual reports and the contents of basic and clinical education.
25
Original article Study of dental arch changes in early posttreatment period – Comparison between Begg and standard edgewise techniques– Akishige Kato, Takashi Kameda, Kazuto Terada Department of Orthodontics, The Nippon Dental University School of Life Dentistry at Niigata, Japan Orthod Waves–Jpn Ed 2014;73(3):125–136
http://dx.doi.org/10.1016/j.odw.2014.12.008 Other Actual conditions of the training institutions approved by the Japanese Orthodontic Society for postgraduate education of accredited orthodontists: Part II. From results of the clinical training institution annual reports in 2009, 2010, and 2011 Teruo Asano 1, Kazuhito Arai 1, Junichiro Iida 1, Hiroyuki Ishikawa 1, Noriyuki Kitai 1, Kazuto Kuroe 1, Shuichiro Sawa 1, Kazuto Terada 1, Yoshiki Nakamura 1, Naoyuki Matsumoto 1, Noriyoshi Shimizu 2,3 1
Committee for Postgraduate Education and Training and for Examination of Training Institutions of the Japanese Orthodontic Society in 2012 and 2013, Japan 2 Department of Orthodontics, Faculty of Dentistry, Nihon University, Japan 3 Chairperson of Committee for Examination of Training Institutions of the Japanese Orthodontic Society in 2008 and 2009, Japan Orthod Waves–Jpn Ed 2014;73(3):97–107
The purpose of this study was to assess actual conditions in clinical training institutions for postgraduate education and to provide the materials for enhancing this education by tallying the data of annual reports from 2009 to 2011. The numbers of the clinical institutions were 165, 195, and 192. The managers of clinical institutions were of three types: accredited orthodontist instructor, board certificated orthodontist, and both instructor and board certificated. The proportion of each type was about 30% during three years. About 30% of the institutions had enrolments of postgraduate students. The totals of students were about 100, and about 30% of them were in the first grade. The total of new orthodontic patients a year was estimated at 20,000, and the institutional average was about 100. The average of new patients was almost half that of basic institutions in comparison. The average number of patients assigned to the students reached all achievement goals in clinical training except permanent dentition and treatment experiences of the first grade in 2009. The number of patients assigned to the students increased in the upper grade. The differences were small in the totals of students, new patients, and patients assigned to students during the three years. These results suggest the need to discuss the timing of annual reports. On the other hand, great differences were found in the totals of these issues among institutions. Also important is promptly conducting the field research not only at the basic institutions, but also at the clinical institutions to survey the problems that cannot cover the annual reports and the clinical education. http://dx.doi.org/10.1016/j.odw.2014.12.009
The dental arch forms are changing before treatment and at posttreatment. Changes in posttreatment including postretention are a serious concern for orthodontists. Multivariate analyses were performed to investigate these dental arch changes at three time points: before treatment, posttreatment, and postretention. Cast models obtained from 31 adults treated with multibracket appliances (16, treated with Begg appliances [group B]; and 15 standard edgewise appliances [group E]) with premolar extraction, passed at least 1 year of postretention. The analyses were restricted to mandibular dental arches and incisor occlusion. In a comparison of the period of treatment and posttreatment, correlations were observed in the intercanine width minus the intercanine lingual and intercanine lingual (group B), and the intermolar lingual (group E). Factor analyses of the posttreatment values revealed that the first factors in dental arch changes were the irregularity index and dental arch width in group B, and the irregularity index and intercanine width in group E. The second factors were overjet and the canine labiolingual inclination in group B, and first molar changes in group E. Multiple regression analyses showed that the irregularity index was related to intermolar width in group B, and to intercanine width and inside arch length in group E. These results suggest that relapse of mandibular anterior crowding in the early posttreatment period is related to changes in the canine, and the first molar is due to the differences of treatment mechanics. http://dx.doi.org/10.1016/j.odw.2014.12.010 Original article Clinical investigation into the prevalence of permanent teeth with amelogenesis imperfecta by Department of Orthodontics, Hiroshima University Nanae Oki 1, Masahide Motokawa 2, Ryo Kunimatsu 2, Naoto Hirose 2, Yuki Yoshimi 2, Kotaro Tanimoto 2 1
Department of Orthodontics, Division of Dental Sciences Major, Hiroshima University Graduate School of Biomedical & Health Sciences, Japan 2 Department of Orthodontics, Applied Life Sciences, Hiroshima University Institute of Biomedical & Health Sciences, Japan Orthod Waves–Jpn Ed 2014;73(3):137–142
Occurrence of amelogenesis imperfecta (AI) in permanent teeth varies in each patient. AI has several manifestations, such as white spot, yellow appearance and enamel loss. These symptoms frequently accompany decayed crowns of teeth. It is considered that AI is associated with genetic, local, or environmental factors.