New method of assessing the relationship between buccal bone thickness and gingival thickness

The aim of this study was to determine the relationship between buccal bone thickness and gingival thickness by means of a noninvasive and relatively accurate digital registration method In 20 periodontally healthy subjects, cone-beam computed tomographic images and intraoral scanned files were obta...

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Published in:Journal of periodontal & implant science 2016, 46(6), , pp.372-381
Main Authors: Kim, Yun-Jeong, Park, Ji-Man, Kim, Sungtae, Koo, Ki-Tae, Seol, Yang-Jo, Lee, Yong-Moo, Rhyu, In-Chul, Ku, Young
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치의학
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container_title Journal of periodontal & implant science
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creator Kim, Yun-Jeong
Park, Ji-Man
Kim, Sungtae
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description The aim of this study was to determine the relationship between buccal bone thickness and gingival thickness by means of a noninvasive and relatively accurate digital registration method In 20 periodontally healthy subjects, cone-beam computed tomographic images and intraoral scanned files were obtained. Measurements of buccal bone thickness and gingival thickness at the central incisors, lateral incisors, and canines were performed at points 0-5 mm from the alveolar crest on the superimposed images. The Friedman test was used to compare buccal bone and gingival thickness for each depth between the 3 tooth types. Spearman's correlation coefficient was calculated to assess the correlation between buccal bone thickness and gingival thickness. Of the central incisors, 77% of all sites had a buccal thickness of 0.5-1.0 mm, and 23% had a thickness of 1.0-1.5 mm. Of the lateral incisors, 71% of sites demonstrated a buccal bone thickness
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Significant differences were observed in gingival thickness at the alveolar crest level (G0) between the central incisors and canines ( =0.032) and between the central incisors and lateral incisors ( =0.013). At 1 mm inferior to the alveolar crest, a difference was found between the central incisors and canines ( =0.025). The lateral incisors and canines showed a significant difference for buccal bone thickness 5 mm under the alveolar crest ( =0.025). The gingiva and buccal bone of the anterior maxillary teeth were found to be relatively thin (&lt;1 mm) overall. A tendency was found for gingival thickness to increase and bone thickness to decrease toward the root apex. 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title New method of assessing the relationship between buccal bone thickness and gingival thickness
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