Measurement of anatomical structure of jaw bone trabecula with micro-CT and its accuracy evaluation

Guang Chun Jin, Xiao Yan Zhang, Ling Jiang, Xiang Lin Li, Di Zhang, Wei Xing Li, Hee Jin Kim, Dong Chun Jin

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Objective: To measure the anatomic structures of the jaw and to discuss the accuracy of the method. Methods: The mandibular specimens were divided into ankle conylar group (3 specimens, regular trabecular architecture and mandibular body group (5 specimens, irregular trabecular architecture). Fifteen volumes of interests(VOI) were created in each group and the total of thirty were measured. The mean value and standard deviation of each parameter at each reconstruction voxel size were calculated. Repeated ANOVA test was used to determine whether the significant differences in the values existed between each parameter. Results: The structure model index (SM1) value in mandibular body group had significant difference(P<0.05) at all reconstruction voxel sizes compared with 18 μm group; but in condyle group, the reconstruction voxel size of 36 μm was not significant (P>0.05). The differences of trabecular thickness(Tb. Th), trabecular number(Tb. N) and trabecular seperation (Tb. Sp) values btween condyle and mandibular body groups were significant at all reconstruction voxel sizes(P< 0.05). In condyle group, except for Tb. Th, Tb. N, and Tb. Sp, the most parameter values were not significant at reconstruction pixel size of 36 μm. In the mandible body group, the differences of all parameter values between different pixel sizes were significant. Conclusion: Micro-CT can reflect the anatomical changes of bone trabecule structure.

Original languageEnglish
Pages (from-to)833-837
Number of pages5
JournalJournal of Jilin University Medicine Edition
Issue number5
Publication statusPublished - 2011 Sept 28

All Science Journal Classification (ASJC) codes

  • Pharmacology


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