与石膏模型相比，混合牙列分析对锥形束计算机断层扫描图像可靠性的比较评估。
A Comparative Evaluation of Mixed Dentition Analysis on Reliability of Cone Beam Computed Tomography Image Compared to Plaster Model.
作者信息
Gowd Snigdha, Shankar T, Dash Samarendra, Sahoo Nivedita, Chatterjee Suravi, Mohanty Pritam
机构信息
Department of Orthodontics, Kalinga Institute of Dental Sciences, KIIT University, Bhubaneswar, Odisha, India.
Department of Prosthodontics, Kalinga Institute of Dental Sciences, KIIT University, Bhubaneswar, Odisha, India.
出版信息
J Int Soc Prev Community Dent. 2017 Jul-Aug;7(4):214-217. doi: 10.4103/jispcd.JISPCD_182_17. Epub 2017 Jul 31.
AIMS AND OBJECTIVE
The aim of the study was to evaluate the reliability of cone beam computed tomography (CBCT) obtained image over plaster model for the assessment of mixed dentition analysis.
MATERIALS AND METHODS
Thirty CBCT-derived images and thirty plaster models were derived from the dental archives, and Moyer's and Tanaka-Johnston analyses were performed. The data obtained were interpreted and analyzed statistically using SPSS 10.0/PC (SPSS Inc., Chicago, IL, USA). Descriptive and analytical analysis along with Student's -test was performed to qualitatively evaluate the data and < 0.05 was considered statistically significant.
RESULTS
Statistically, significant results were obtained on data comparison between CBCT-derived images and plaster model; the mean for Moyer's analysis in the left and right lower arch for CBCT and plaster model was 21.2 mm, 21.1 mm and 22.5 mm, 22.5 mm, respectively.
CONCLUSION
CBCT-derived images were less reliable as compared to data obtained directly from plaster model for mixed dentition analysis.
目的
本研究旨在评估锥形束计算机断层扫描（CBCT）所获图像相对于石膏模型在混合牙列分析评估中的可靠性。
材料与方法
从牙科档案中获取30张CBCT衍生图像和30个石膏模型，并进行莫耶尔分析和田中 - 约翰斯顿分析。使用SPSS 10.0/PC（美国伊利诺伊州芝加哥市SPSS公司）对所得数据进行统计解释和分析。进行描述性和分析性分析以及学生t检验以定性评估数据，P<0.05被认为具有统计学意义。
结果
在CBCT衍生图像与石膏模型的数据比较中获得了具有统计学意义的结果；CBCT和石膏模型在下颌左右牙弓中莫耶尔分析的平均值分别为21.2毫米、21.1毫米和22.5毫米、22.5毫米。
结论
在混合牙列分析中，与直接从石膏模型获得的数据相比，CBCT衍生图像的可靠性较低。
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