The Discrimination between Extraction and Non-Extraction in Orthodontic Diagnosis and Clinical Application

正畸诊断及临床应用中拔牙与不拔牙的区分

• 批准号: 04671276
• 负责人: NEGORO Takefumi
• 金额: $ 1.22万
• 依托单位: Aichi-Gakuin University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04671276/
• 关键词: Orthodontic treatment; Malocclusions; Extraction and Non-Extraction; Differences of Morphological feature; Differences between Male and Female; Statistical survey; Discriminant function; 顎態明相違

The purposes of this study were to investigate the actual state for patients of extraction and non-extraction in Orthodontic treatment and to find the factor related significantly with decision of extraction or non-extraction treatment.The Materials of statistical survey comprised 1711 patients (Male : 490, Female : 1221) in Orthodontic clinic of Aichi-Gakuin University, Dental Hospital.The results were followed :(1) The frequency of Extraction patients was higher than Non-Extraction, the rate of frequency was 56.2%.(2) The frequency of Extraction patients in Female was higher significantly than Male.(3) In the rate of extraction patients in each malocclusions, Maxillary protrusion patients was 76.4%, Crowding patients was 66.3%, Mandibular prognathism was 34.9%.(4) Tfhe frequency of extraction in high age patients was higher than low age. At the study of analysis with the discriminant function, 724 patients (Male : 211, Female : 513) were comprised as the materials.The results were followed :(1) The patients with lower age and/or small overjet and/or small ANB showed high probability of treatment with Non-Extraction.(2) In Male, upper and lower space, initial age and overjet were effective parameters between Extraction and Non-Extraction. In Female, space and ANB were effective strongly.(3) The probability of agreement in analysis discriminated between Extraction and Non-Extraction was over 75%.

本研究的目的是调查拔牙与不拔牙患者在正畸治疗中的实际状况，并找出与拔牙或不拔牙治疗决策有显著相关性的因素结果显示：（1）拔牙患者的发生率高于非拔牙患者，拔牙患者的发生率为56.2%。(2)女性拔牙患者的发生率明显高于男性。(3)在拔牙患者中，上颌前突患者占76.4%，拥挤患者占66.3%，下颌无颌患者占34.9%。(4)高年龄组拔牙率高于低年龄组。对724例患者（男211例，女513例）进行判别函数分析，结果表明：（1）年龄小、覆盖小、ANB小的患者选择非拔牙矫治的可能性大; (2)在男性中，上、下间隙、初始年龄和覆盖是影响拔牙与未拔牙的有效参数。在女性中，空间和ANB是强有效的。(3)浸提和非浸提之间的分析一致性概率超过75%。

项目成果

名和弘幸,三島知彦,吉田光志,宮澤健,他: "矯正診断における抜歯・非抜歯の判定基準の確立と臨床応用-判別分析による検討-" 日本矯正歯科学会雑誌. (投稿予定).

Hiroyuki Nawa、Tomohiko Mishima、Mitsushi Yoshida、Ken Miyazawa 等：“正畸诊断和临床应用中拔牙/不拔牙判定标准的建立 - 通过判别分析进行检查”日本正畸学会杂志（待定）。已提交）。

Nawa Hiroyuki, Mishima Tomohiko, Yoshida Kouji, Miyazawa Ken, Iwata Toshio, Iwata Ryou, Hayakawa Shinichi, Murata Satoru, Negoro Takefumi, Kondou Takamasa, Fuwa Yuji, Goto Shigemi, Iizuka Tetsuo: "The Discrimination between Extraction and Non-Extraction i

名和弘之、三岛智彦、吉田浩二、宫泽健、岩田俊夫、岩田良、早川新一、村田悟、根吾郎文、近藤贵正、不破雄二、后藤茂美、饭冢哲夫：《提取与非提取的区别》

田中進平,根来武史,吉田光志,梶原忠嘉 他: "開咬治療に際しての抜歯部位の選択-成人骨格性I・II・III級開咬症例について-" 日本矯正歯科学会雑誌(抄録). 52. 232-233 (1993)

Shinpei Tanaka、Takeshi Negoro、Mitsushi Yoshida、Tadayoshi Kajiwara 等：“开牙合治疗拔牙部位的选择 - 关于成人骨骼类 I、II、III 开牙合病例 -” 日本正畸学会杂志 (摘要）52。232-233（1993）。

名和弘幸,三島知彦,吉田光志,宮澤健,他: "矯正診断における抜歯・非抜歯の判定基準の確立と臨床応用-実態調査-" 愛知学院大学歯学会雑誌. (投稿予定).

Hiroyuki Nawa、Tomohiko Mishima、Mitsushi Yoshida、Ken Miyazawa等：“正畸诊断中拔牙或不拔牙的标准的制定及其临床应用-实际情况调查”爱知学院大学牙科学会杂志（待提交）。