JaLCDOI 10.18926/AMO/54005
FullText URL 70_1_57.pdf
Author Sumiyoshi, Kumi| Ishihara, Yoshihito| Komori, Hiroki| Yamashiro, Takashi| Kamioka, Hiroshi|
Abstract Permanent canines are thought to play a pivotal role in obtaining an ideal occlusion. Dentists occasionally encounter patients who lack canines and are therefore missing a key to harmonious guidance during functional mandibular excursions. This case report describes the substitution of maxillary first premolars for congenitally missing canines in the context of an orthodontic treatment plan. A boy, age 10 years and 11 months, with a chief complaint of crooked teeth was diagnosed with Class II division 2 malocclusion associated with a high mandibular plane angle and deep overbite. A stable occlusion with a satisfactory facial profile and functional excursions without interference were achieved after a comprehensive two-stage orthodontic treatment process. The resulting occlusion and satisfactory facial profile were maintained for 12 months. These results indicate that substituting the first premolars for the canines is an effective option in treating patients with missing canines while maintaining functional goals.
Keywords orthodontics missing canines stomatognathic function
Amo Type Case Reports
Published Date 2016-02
Publication Title Acta Medica Okayama
Volume volume70
Issue issue1
Publisher Okayama University Medical School
Start Page 57
End Page 62
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2016 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 26899611
Web of Sience KeyUT 000371288700008
JaLCDOI 10.18926/AMO/53525
FullText URL 69_3_177.pdf
Author Hoshijima, Mitsuhiro| Honjo, Tadashi| Moritani, Norifumi| Iida, Seiji| Yamashiro, Takashi| Kamioka, Hiroshi|
Abstract This article reports the case of a 44-year-old male with skeletal Class III, Angle Class III malocclusion and unilateral crossbite with concerns about obstructive sleep apnea syndrome (OSAS), esthetics and functional problems. To correct the skeletal deformities, the maxilla was anteriorly repositioned by employing LeFort I osteotomy following pre-surgical orthodontic treatment, because a mandibular setback might induce disordered breathing and cause OSAS. After active treatment for 13 months, satisfactory occlusion was achieved and an acceptable facial and oral profile was obtained. In addition, the apnea hypopnea index (AHI) decreased from 18.8 preoperatively to 10.6 postoperatively. Furthermore, after a follow-up period of 7 months, the AHI again significantly decreased from 10.6 to 6.2. In conclusion, surgical advancement of the maxilla using LeFort I osteotomy has proven to be useful in patients with this kind of skeletal malocclusion, while preventing a worsening of the OSAS.
Keywords LeFort I osteotomy maxillary advancement unilateral crossbite obstructive sleep apnea syndrome
Amo Type Case Report
Published Date 2015-06
Publication Title Acta Medica Okayama
Volume volume69
Issue issue3
Publisher Okayama University Medical School
Start Page 177
End Page 182
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2015 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 26101194
Web of Sience KeyUT 000356903000007
Author Tomita, Nao| Hattori, Takako| Itoh, Shinsuke| Aoyama, Eriko| Yao, Mayumi| Yamashiro, Takashi| Takigawa, Masaharu|
Published Date 2013-03-28
Publication Title PLoS ONE
Volume volume8
Issue issue3
Content Type Journal Article
Author Itoh, Shinsuke| Hattori, Takako| Tomita, Nao| Aoyama, Eriko| Yutani, Yasutaka| Yamashiro, Takashi| Takigawa, Masaharu|
Published Date 2013-08-12
Publication Title PLoS ONE
Volume volume8
Issue issue8
Content Type Journal Article
JaLCDOI 10.18926/AMO/51863
FullText URL 67_5_277.pdf
Author Murakami, Takashi| Fujii, Akihito| Kawabata, Yuya| Takakura, Hiroaki| Yamaue, Rie| Tarek Abdulsamad Ali Balam| Kuroda, Shingo| Kawanabe, Noriaki| Kamioka, Hiroshi| Yamashiro, Takashi|
Abstract The aims of this study were to investigate how the Peer Assessment Rating (PAR index) predicts the perceived need for orthodontic treatment of mandibular protrusion in Japanese subjects, and to elucidate whether the perceived need for treatment was affected by the ratersʼ orthodontic expertise. The subjects were 110 dental students and 32 orthodontists. We showed them casts of 10 untreated mandibular protrusion cases and gave them a questionnaire in which they had to describe their perceptions of the orthodontic treatment needs using a 10-point visual analog scale (VAS). The PAR index was used for cast evaluation. The PAR index scores showed significant correlations with the VAS scores. In casts with a low PAR score, there were no differences in the VAS scores between orthodontists and students. In casts with a PAR score greater than 23, the orthodontists perceived a significantly greater treatment need than did the students;for scores of 22, 28, and 29, students who had received orthodontic treatment themselves were more likely to perceive the treatment need. The PAR index is a good clinical predictor for assessing the perceived treatment needs for mandibular protrusion. Perception of the need for orthodontic treatment for mandibular protrusion depended on the degree of orthodontic expertise in Japanese subjects.
Keywords orthodontic expertise treatment need PAR index mandibular protrusion
Amo Type Original Article
Published Date 2013-10
Publication Title Acta Medica Okayama
Volume volume67
Issue issue5
Publisher Okayama University Medical School
Start Page 277
End Page 283
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 24145727
Web of Sience KeyUT 000325836100001
Author Hoshijima, Mitsuhiro| Hattori, Takako| Aoyama, Eriko| Nishida, Takashi| Yamashiro, Takashi| Takigawa, Masaharu|
Published Date 2012-10
Publication Title FEBS Journal
Volume volume279
Issue issue19
Content Type Journal Article