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学科主题口腔医学
Evaluation of root and alveolar bone development of unilateral osseous impacted immature maxillary central incisors after the closed-eruption technique
Shi, Xiangru1; Xie, Xiaoyan2; Quan, Junkang1; Wang, Xiaozhe1; Sun, Xiangyu1; Zhang, Chenying1; Zheng, Shuguo1
刊名AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS
2015-10-01
DOI10.1016/j.ajodo.2015.04.035
148期:4页:587-598
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Dentistry, Oral Surgery & Medicine
研究领域[WOS]Dentistry, Oral Surgery & Medicine
关键词[WOS]ORTHODONTIC TREATMENT ; PERIODONTAL EVALUATION ; RESORPTION ; CANINES ; TERM
英文摘要

Introduction: In this study, we evaluated root and alveolar bone development in unilateral osseous impacted immature maxillary central incisors by cone-beam computed tomography before and after closed-eruption treatment, in comparison with naturally erupted contralateral immature maxillary central incisors. Methods and Results: The study included 30 patients, 20 boys and 10 girls, with a mean age of 8.44 +/- 1.20 years (range, 6.5-11.2 years). After treatment, the root lengths of both the impacted maxillary central incisors (10.66 +/- 2.10 mm) and the contralateral maxillary central incisors (11.04 +/- 1.76 mm) were significantly greater than their pretreatment values (6.67 +/- 1.94 and 9.02 +/- 2.13 mm, respectively). The root canal widths of the incisors decreased significantly after treatment. From the posttreatment cone-beam computed tomography images, the ratio of exposed root length to total root length and the thickness of the alveolar bone at 1 mm under the alveolar crest and at the apex were calculated to evaluate alveolar bone development. Impacted immature maxillary central incisors differed significantly from contralateral immature maxillary central incisors in labial exposed root length, labial ratio to total root length, and lingual alveolar crest. Clinical crown height was higher (statistically but not clinically) for the impacted incisors (9.87 mm) than for the contralateral incisors (9.37 mm). Conclusions: Impacted immature incisors grew to the same stage as did erupted contralateral incisors after closed-eruption treatment. Both incisor types had some alveolar bone loss, and thin alveolar bone surrounded the roots.

语种英语
WOS记录号WOS:000364165900015
项目编号Z121107001012029 ; PKUSSNCT-07A06
资助机构Capital Foundation for Clinical Characteristics and Application Research ; Program for New Clinical Techniques and Therapies of Peking University School and Hospital of Stomatology
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/63695
专题北京大学口腔医学院_口腔预防保健科
北京大学口腔医学院_口腔放射科
作者单位1.Peking Univ, Sch & Hosp Stomatol, Dept Prevent Dent, Beijing 100081, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Dept Oral & Maxillofacial Radiol, Beijing 100081, Peoples R China
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GB/T 7714
Shi, Xiangru,Xie, Xiaoyan,Quan, Junkang,et al. Evaluation of root and alveolar bone development of unilateral osseous impacted immature maxillary central incisors after the closed-eruption technique[J]. AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS,2015,148(4):587-598.
APA Shi, Xiangru.,Xie, Xiaoyan.,Quan, Junkang.,Wang, Xiaozhe.,Sun, Xiangyu.,...&Zheng, Shuguo.(2015).Evaluation of root and alveolar bone development of unilateral osseous impacted immature maxillary central incisors after the closed-eruption technique.AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS,148(4),587-598.
MLA Shi, Xiangru,et al."Evaluation of root and alveolar bone development of unilateral osseous impacted immature maxillary central incisors after the closed-eruption technique".AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS 148.4(2015):587-598.
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