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Comparative Study of Dentascan and Radiography for Radiological Evaluation of Impacted Teeth

机译：Dentascan与放射线照相技术对患牙进行放射学评估的比较研究

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Introduction: Impacted teeth present a very common problem in dentistry due to the variable numbers of problems they cause. They have previously been imaged by radiography which is very inaccurate. Dental CT is an upcoming modality which very accurately images the teeth. Aim: The aim of our study was to compare the efficacy of Dental CT with radiography in assessing the morphology of the impacted tooth and its relation to adjacent structures.Materials and Methods: We conducted a hospital based prospective study in which all patients with impacted teeth who underwent Dental CT and Radiographic evaluation were evaluated.Results: The morphology of all the teeth was well visualized on CT. Resorption of adjacent tooth was missed in 7 teeth by radiography. In a significant number of cases (10/30) the relation of the impacted tooth with the mandibular canal could not be visualized on the radiographs.Conclusion: We concluded that Dental CT yields markedly better information than radiographs regarding impacted teeth with respect to divergence of the roots, relation of the impacted tooth with the adjacent tooth, nasal floor, maxillary sinus and mandibular canal. However, Dental CT was found to be only marginally better than Radiographs for assessment of number of roots, inclination of the impacted tooth and relation of the tooth with alveolar crest. Dental CT was also proved to be an indispensable diagnostic tool for the determination of the buccolingual inclination and relations of the impacted tooth.
机译：简介：患牙由于其引起的各种问题而在牙科领域是一个非常普遍的问题。他们以前是用射线照相技术成像的，这是非常不准确的。牙科CT是即将出现的一种可以非常精确地对牙齿成像的方式。目的：我们的研究目的是比较牙科CT和放射成像在评估患牙形态及其与邻近结构的关系方面的功效。材料与方法：我们进行了一项基于医院的前瞻性研究，其中所有患牙的患者结果：对所有牙齿的形态均能在CT上清晰显示。 X线检查漏掉了7个牙齿中相邻牙齿的吸收。在很多情况下（10/30），在X射线照片上无法看到患牙与下颌管的关系。结论：我们得出结论，就受累牙齿的散度而言，牙科CT的影像学信息明显优于X射线照片。牙齿的根部，与相邻牙齿的关系，鼻底，上颌窦和下颌管。但是，在评估牙根的数量，患牙的倾斜度以及牙齿与牙槽c的关系方面，发现牙科CT仅比X线照片稍好。牙科CT也被证明是确定颊舌倾斜度和患牙关系的必不可少的诊断工具。

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