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Effect of Scaling and Root Planing on Alveolar Bone as Measured by Subtraction Radiography

Cited 17 time in Web of Science Cited 18 time in Scopus
Authors

Hwang, You-Jeong; Fien, Matthew Jonas; Lee, Sam-Sun; Kim, Tae-Il; Seol, Yang-Jo; Lee, Yong-Moo; Ku, Young; Rhyu, In-Chul; Chung, Chong-Pyoung; Han, Soo-Boo

Issue Date
2008
Publisher
American Academy of Periodontology
Citation
J Periodontol 2008;79:1663-1669
Keywords
Bone densitydental scalingradiographyroot planing
Abstract
Background: Scaling and root planing of diseased periodontal
pockets is fundamental to the treatment of periodontal disease. Although
various clinical parameters have been used to assess the efficacy
of this therapy, radiographic analysis of changes in bone
density following scaling and root planing has not been extensively
researched. In this study, digital subtraction radiography was used
to analyze changes that occurred in the periodontal hard tissues following
scaling and root planing.
Methods: Thirteen subjects with a total of 39 sites that presented
with >3mmof vertical bone loss were included in this study. Clinical
examinations were performed and radiographs were taken prior to
treatment and were repeated 6 months following scaling and root
planing. Radiographic analysis was performed with computerassisted
radiographic evaluation software. Three regions of interest
(ROI) were defined as the most coronal, middle, and apical portions
of each defect. A fourth ROI was used for each site as a control region
and was placed at a distant, untreated area. Statistical analysis
was carried out to evaluate changes in the mean gray level at the
coronal, middle, and apical region of each treated defect.
Results: Digital subtraction radiography revealed an increase in
radiographic density in 101 of the 117 test regions (83.3%). A 256
gray level was used, and a value >128 was assumed to represent a
density gain in the ROI. The average gray level increase was 18.65.
Although the coronal, middle, and apical regions displayed increases
in bone density throughout this study, the bone density of
the apical ROI (gray level = 151.27 – 20.62) increased significantly
more than the bone density of the coronal ROI (gray level = 139.19 –
21.78). A significant increase in bone density was seen in probing
depths >5mmcompared to those <5mmin depth.No significant difference
was found with regard to bone-density changes surrounding
single- versus multiple-rooted teeth.
Conclusion: Scaling and root planing of diseased periodontal
pockets can significantly increase radiographic alveolar bone density
as demonstrated through the use of digital subtraction radiography.
ISSN
0022-3492
Language
English
URI
https://hdl.handle.net/10371/68832
DOI
https://doi.org/10.1902/jop.2008.070568
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