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. 2024 Feb 1;16(2):e145-e150.
doi: 10.4317/jced.61169. eCollection 2024 Feb.

Association between gubernacular canals characteristics and teeth eruption status: a cone-beam computed tomography study

Emad Behrouzi  1 , Farida Abesi  2 , Hakimeh Ghorbani  3 , Hemmat Gholinia  4
Affiliations

Association between gubernacular canals characteristics and teeth eruption status: a cone-beam computed tomography study

Emad Behrouzi et al. J Clin Exp Dent. .

Abstract

Background: There have been few studies that have evaluated the imaging characteristics of the gubernacular canal. Additionally, it is important to understand the role of this structure and its relationship with tooth erupt. Therefore, the objective of this study was to investigate the association between gubernacular canal features and teeth eruption status on cone-beam computed tomography (CBCT) images.

Material and methods: In this cross-sectional study, 150 CBCT images were obtained from patients referred to a maxillofacial radiology clinic in Babol, northern Iran, in 2021. Eruption status (normal, delayed, and impacted) and the presence of the gubernacular canal were recorded. If the gubernacular canal was detected, its opening site in the alveolar crest (buccal, lingual, and central) and its attachment site to the dental follicle (usual, unusual) were further assessed.

Results: Gubernacular canal was observed in 133 (88.7%) of the total 150 CBCT images. Also, 41 cases (27.3%) had impacted teeth. The detection rate of the gubernacular canal in the normal, delayed, and impacted eruption of teeth was 92.1% (n=93), 75.0% (n=6), and 82.9% (n=34), respectively (p=0.135). Opening the gubernacular canal in the alveolar crest was not associated with teeth eruption status. Also, unusual attachment sites of the gubernacular canal to dental follicles were mostly seen in abnormal eruptions.

Conclusions: According to the findings, observing the presence of the gubernacular canal on CBCT may not help anticipate teeth eruption problems. Key words:Gubernacular canal, Cone-beam computed tomography, Tooth eruption.

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Conflict of interest statement

Conflicts of interest The authors report no conflicts of interest related to this study.

Figures

Figure 1
Figure 1
Gubernacular canal detected in third upper molar tooth in coronal (A) and sagittal (B) views.
Figure 2
Figure 2
Formula
Figure 3
Figure 3
Cone-beam computed tomography images of the gubernacular canal were detected in teeth with normal eruption (A), delayed eruption (B) and impacted tooth (C), and not detected in normal eruption (D), delayed eruption (E) and impacted tooth (F).
Figure 4
Figure 4
An example of an unusual attachment site of the gubernacular canal to the dental follicle in the upper canine. The canal is attached in lingual (buccal-lingual aspect) and central (occlusal-cervical aspect) direction to the dental follicle.
See this image and copyright information in PMC

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