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学科主题: 口腔医学
题名:
Three-dimensional evaluations of supernumerary teeth using cone-beam computed tomography for 487 cases
作者: Liu, Deng-gao; Zhang, Wan-lin; Zhang, Zu-yan; Wu, Yun-tang; Ma, Xu-chen
刊名: ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY
发表日期: 2007-03-01
DOI: 10.1016/j.tripleo.2006.03.026
卷: 103, 期:3, 页:403-411
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]: CONVENTIONAL RADIOGRAPHY ; MAXILLOFACIAL SURGERY ; MAXILLARY CANINES ; IMPACTED TEETH ; CT ; LOCALIZATION
英文摘要:

Purpose. The purpose of this article is to introduce the use of cone-beam computed tomography (CBCT) for evaluation of supernumerary teeth.

Methods. The study group comprised 487 patients with a total of 626 supernumerary teeth who were examined by CBCT. Patient characteristics were recorded, and the number, location, shape, and 3-dimensional position of the supernumeraries were analyzed. The ability of CBCT to visualize dental and skeletal structures relative to supernumerary teeth was also evaluated.

Results. Males were affected more than females in a ratio of 2.64:1. Seventy-two percent of the patients had I supernumerary tooth, 27.3% had 2, and 0.6% had 3 supernumeraries. Supernumerary teeth were most frequently located in the anterior maxilla (92%), and their sagittal location relative to the neighboring teeth could be used for classification purposes. Supernumeraries were most commonly conical in shape (83.51%). CBCT yielded accurate 3-dimensional pictures of the dental and bony structures. The sagittal positions of the 578 supernumerary teeth in the anterior maxilla were divided into 6 types, of which types I and III were most commonly associated with local malocclusions. Moreover, 43.4% of the premaxillary supernumeraries were inverted and 21.1% were transversely oriented.

Conclusions. CBCT imaging yields accurate 3-dimensional pictures of local dental and bony structures, which is helpful for pretreatment evaluation of supernumerary teeth.

语种: 英语
WOS记录号: WOS:000245441700022
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/66431
Appears in Collections:北京大学口腔医学院_医学影像科_期刊论文

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作者单位: 1.Peking Univ, Sch & Hosp Stomatol, Dept Oral Radiol, Beijing 100081, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Ctr TMD, Beijing 100081, Peoples R China

Recommended Citation:
Liu, Deng-gao,Zhang, Wan-lin,Zhang, Zu-yan,et al. Three-dimensional evaluations of supernumerary teeth using cone-beam computed tomography for 487 cases[J]. ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY,2007,103(3):403-411.
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