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. 2023 Jul 25;53(4):232-240.
doi: 10.4041/kjod23.020. Epub 2023 Jun 26.

Zygomaticotemporal suture maturation evaluation in Chinese population using cone-beam computed tomography images

Yifan Li  1   2   3   4   5 , Ruomei Li  1   2   3   4   5 , Jiajun Shi  1   2   3   4   5 , Yuhua Shan  1   2   3   4   5 , Zhenqi Chen  1   2   3   4   5
Affiliations

Zygomaticotemporal suture maturation evaluation in Chinese population using cone-beam computed tomography images

Yifan Li et al. Korean J Orthod. .

Abstract

Objective: This study aimed to evaluate the zygomaticotemporal suture (ZTS) maturation, analyze the age distribution patterns of ZTS maturation stages, and investigate the relationship between ZTS and cervical vertebral maturation (CVM).

Methods: A total of 261 patients who underwent cone-beam computed tomography (112 males, mean age, 13.1 ± 3.3 years; 149 females, mean age, 13.7 ± 3.1 years) were examined to evaluate the ZTS stages. The ZTS stages were defined based on a modified method from previous studies on zygomaticomaxillary sutures. Differences between groups and correlations between indicators were analyzed using the Spearman correlation test, intraclass coefficient of correlation (ICC), one-way analysis of variance and rank sum test. Statistical significance was set at p < 0.05. The diagnostic value of CVM stages in identifying ZTS maturation stages was evaluated using positive likelihood ratios (LRs).

Results: A positive relationship was found between the ZTS and CVM stage (r = 0.747, ICC = 0.621, p < 0.01) and between the ZTS stage and chronological age (r = 0.727, ICC = 0.330, p < 0.01). Positive LRs > 10 were found for several cervical stages (CSs), including CS1 and CS2 for the diagnosis of stage B, CS1 to CS3 for the diagnosis of stages B and C, and CS6 for the diagnosis of stages D and E.

Conclusions: The ZTS maturation stage may be more relevant to the CVM stage than to the chronological age. The CVM stages can be good indicators for clinical decisions regarding maxillary protraction, except for CS4 and CS5.

Keywords: Computed tomography; Maxillary protraction; Vertebral maturation; Zygomaticotemporal suture.

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Conflict of interest statement

CONFLICTS OF INTEREST

No potential conflict of interest relevant to this article was reported.

Figures

Figure 1
Figure 1
Evaluation of the ZTS maturation stages. A, Three-dimensional visualization of ZTS. B, In the sagittal view, the horizontal cursor (red line) is rotated parallel to the palatal plane (blue dotted line). C, In the axial view, adjustments were made till one side of the ZTS was seen (left side as an example, blue arrow) can be seen. D, The vertical cursor (green line) is positioned to traverse through the ZTS (blue arrow). E, In the coronal view, the vertical cursor (green line) is positioned to traverse through the ZTS (blue arrow). The morphology of ZTS (blue arrow) can be observed in the sagittal view. ZTS, zygomaticotemporal suture.
Figure 2
Figure 2
CBCT images and diagrams of various ZTS maturation stages. From stage A to stage E, the maturity of the suture increased gradually. CBCT, cone-beam computed tomography; ZTS, zygomaticotemporal suture.
Figure 3
Figure 3
Age distribution patterns of various ZTS maturation stages. ZTS, zygomaticotemporal suture.
See this image and copyright information in PMC

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