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一种在口腔内利用咬合投照的根尖片测量骨宽度的、经济有效的办公室内技术。

An in-office, cost effective technique for measuring width of bone using intra-oral periapical radiographs in occlusal projection.

作者信息

Desai Shrikar R, Karthikeyan I, Singh Rika

机构信息

Department of Periodontology, H.K.E. Society's S. Nijalingappa Institute of Dental Sciences and Research, Gulbarga, Karnataka, India.

出版信息

J Indian Soc Periodontol. 2013 Jan;17(1):82-6. doi: 10.4103/0972-124X.107480.

DOI:10.4103/0972-124X.107480
PMID:23633779
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3636925/
Abstract

BACKGROUND

The aim of this in vitro study was to determine the dimensions of ridge/width of bone and deviation of center of ridge using Intra Oral Periapical Radiographs (IOPA) in occlusal projection as a preprosthetic diagnostic method.

MATERIALS AND METHODS

Mandibles with edentulous space were procured and cold cure acrylic stents were fabricated. Three holes were drilled occlusally, buccally, lingually and filled with gutta percha. Then mandibles were tied to menaquine model which was fitted to a dental chair. IOPA radiographs in occlusal projection were taken. Radiographs were scanned to obtain a digital image which was analyzed using computerized software. Direct measurements were taken and compared. The position of center of ridge was compared in vitro and radiographically using student unpaired t test and width of bone was compared using Karl Pearson's coefficient test.

RESULTS

Comparisons of bucco-lingual ridge width using radiographical measurement versus in vitro method showed a mean value of 4.1930 with deviation of 0.5934 and the proposed position of center of ridge for both the methods gave a mean value of 0.2738 with deviation of 0.1164.

CONCLUSION

The findings in this study suggested that IOPA radiographs in occlusal projection can be used as a preprosthetic diagnostic method to assess the width of the alveolar bone for future flapless implant placement.

摘要

背景

本体外研究的目的是确定使用咬合位口内根尖片（IOPA）作为修复前诊断方法时，牙槽嵴的尺寸/骨宽度及牙槽嵴中心的偏移情况。

材料与方法

获取带有无牙间隙的下颌骨，并制作冷固化丙烯酸支架。在咬合面、颊侧和舌侧钻三个孔，并用牙胶充填。然后将下颌骨固定在适配牙科椅的梅纳奎模型上。拍摄咬合位的IOPA片。扫描片子以获得数字图像，并用计算机软件进行分析。进行直接测量并比较。使用学生未配对t检验在体外和影像学上比较牙槽嵴中心的位置，使用卡尔·皮尔逊系数检验比较骨宽度。

结果

影像学测量与体外测量的颊舌向牙槽嵴宽度比较显示，平均值为4.1930，偏差为0.5934，两种方法的牙槽嵴中心提议位置平均值为0.2738，偏差为0.1164。

结论

本研究结果表明，咬合位的IOPA片可作为一种修复前诊断方法，用于评估未来无瓣种植体植入时牙槽骨的宽度。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/b6295fded0bf/JISP-17-82-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/8200fd5f4035/JISP-17-82-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/7fd539fd18b7/JISP-17-82-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/debc147ae71c/JISP-17-82-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/ca934e28ea33/JISP-17-82-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/2705163e9ac1/JISP-17-82-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/59ecb720d904/JISP-17-82-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/06d2b5573355/JISP-17-82-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/b6295fded0bf/JISP-17-82-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/8200fd5f4035/JISP-17-82-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/7fd539fd18b7/JISP-17-82-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/debc147ae71c/JISP-17-82-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/ca934e28ea33/JISP-17-82-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/2705163e9ac1/JISP-17-82-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/59ecb720d904/JISP-17-82-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/06d2b5573355/JISP-17-82-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/218a/3636925/b6295fded0bf/JISP-17-82-g010.jpg

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