Evaluation of alveolar bone density by intraoral periapical radiography

Eun-Jin Park; David-Hyungjin Kim; Eun-Suk Kim

doi:10.4047/jkap.2014.52.3.233

Journal List > J Korean Acad Prosthodont > v.52(3) > 1034789

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Park, Kim, and Kim: Evaluation of alveolar bone density by intraoral periapical radiography

Original Article

J Korean Acad Prosthodont 2014;52(3):233-238.

Published online: 9 February 2014

DOI: https://doi.org/10.4047/jkap.2014.52.3.233

Evaluation of alveolar bone density by intraoral periapical radiography

Eun-Jin Park¹, David-Hyungjin Kim², Eun-Suk Kim^3,^∗

¹Department of Dentistry, School of Medicine, Ewha Womans University, Seoul, Republic of Korea

²Division of Biological Science, University of California, San Diego, USA

³Jukjeon Dental Hospital, College of Dentistry, Dankook University, Yongin, Korea

^∗Corresponding Author: Eun-Suk Kim Department of Oral and Maxillofacial Surgery, Jukjeon Dental Hospital 126 Jukjeon-dong, Suji-gu, Yongin, 448-701, Korea +82 31 8005 2547: e-mail, eskimos@dankook.ac.kr

This study was supproted by a grant of Dankook University (113526).

Received 20 June 20144 July 2014 Accepted 7 July 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

A method detecting change of jaw or alveolar bone density may be helpful in periodontal care, implant dentistry and evaluation of bone density of whole body.

Materials and methods

In this study, bone density of intraoral periapical radiography using phantom-integrated XCP is compared with that of quantitative computed tomography (QCT).

Results

Bone density of intraoral periapical radiography and the one measured by QCT showed high correlation (correlation coefficient = 0.92, P<.001) in alveolar bone, and relatively high correlation (0.73, P<.001) in cancellous bone.

Conclusion

This study revealed possibility of scoring of bone density by intraoral periapical radiography.

Keywords: Bone density, Alveolar bone density, Intraoral periapical radiography, Quantitative computed tomography, Cortical bone, Cancellous bone

REFERENCES

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Fig. 1.

A modified holding device of x-ray sensor with aluminum phantom.

Fig. 2.

Relationship between thickness of phantom and average gray level.

Fig. 3.

Intraoral x-ray image and region of interest (ROI).

Fig. 4.

Quantitative computed tomography (QCT) and ROI of mandibular alveolar bone.

Fig. 5.

Gray level and gradient profile of quantitative computed tomography on mandible. (A) Gradient profile of interface between soft tissue and buccal cortex of mandible,(B) Gradient profile of interface between soft tissue and lingual cortex of mandible, (C) Gradient profile of interface between buccal cortical bone and marrow of mandible,(D) Gradient profile of interface between lingual cortical bone and marrow of mandible.

Fig. 6.

A graph of correlation between alveolar bone densities of periapical radiograph and QCT.

Fig. 7.

A graph of correlation between alveolar bone density of periapical radiograph and marrow density of QCT.

Table 1.

Bone density of mandibles measured in intraoral radiography (adjusted phantom)

Subject	1	2	3	4	5	6	7	8	9
Adjusted mean	6.0	4.1	4.9	4.2	5.9	4.2	5.1	3.7	4.7

Table 2.

Bone density of mandible measured in quantitative CT

Subject	1	2	3	4	5	6	7	8	9
Bone density index of mandible	5780	3431	4614	3226	4909	3157	5298	2896	3895

Table 3.

Bone density of mandibular cancellous bone measured in quantitative CT

Subject	1	2	3	4	5	6	7	8	9
Bone density index of mandibular cancellous bone	2396	1137	2424	1104	1581	1026	2433	821	1787

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