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Are morphological and morphometric characteristics of maxillary anterior region and nasopalatine canal related to each other?

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Abstract

Objectives

The main purpose of this article was to clarify the relationship of anterior bone and tooth morphology with NPC. The anatomical features of the NPC region in three dimensions from coronal, axial, and sagittal directions were analyzed using CBCT and the effects of age, gender, sagittal root positions (SRPs) of central teeth, anterior overbite depth (AOD), central incisor (CI)/palatal plane (PP) angle, NPC/PP angle, and collum angles (CA) on NPC were evaluated in a group of the Turkish population.

Materials and methods

In this retrospective study, CBCTs of a total of 330 individuals between the ages of 17 and 82 were evaluated. The effects of SRP, AOD, CI/PP angle, NPC/PP angle and CA on the anatomical features of NPC were examined on the basis of age and gender. Descriptive statistics, Kolmogorov–Smirnov, Chi-square, Wilcoxon, Mann–Whitney-U, Kruskal–Wallis, and Spearman correlation tests were used. p values of < 0.05 were accepted as statistically significant.

Results

While the SRPs, CI/PP angle, NPC/PP angle, CA, and age did not differ statistically according to NPC shape (p > 0.05), NPC shape varied according to gender and AOD (p < 0.05). It was found that cylindrical NPC (32.8%) was more common in females, while conical-shaped NPC (30.7%) was more common in males (p < 0.01). While most conical NPC was detected in individuals with Class I overbite depth, cylindrical NPCs were found in Class II and III individuals (p < 0.01).

Conclusions

The results showed that gender and AOD are influential factors on NPC shape. While conical-shaped NPC is more common in individuals with bite depth incisal, cylindrical-shaped NPC is more likely to be seen in individuals with middle and cervical thirds.

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  1. Department of Oral and Maxillofacial Radiology, Dentistry Faculty, Necmettin Erbakan University, Konya, Turkey

    Guldane Magat & Mehmet Akyuz

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  1. Guldane Magat
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Contributions

GM and MA conceived and designed the study, analyzed and interpreted the data, and drafted the article. GM acquired the data, analyzed and interpreted the data, and revised the article. GM and MA conceived and designed the study, and revised the article for important intellectual content. GM read and approved the final manuscript.

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Correspondence to Guldane Magat.

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The Ethics Committee of Necmettin Erbakan University Dentistry Faculty approved the protocols of this retrospective study.

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Magat, G., Akyuz, M. Are morphological and morphometric characteristics of maxillary anterior region and nasopalatine canal related to each other?. Oral Radiol 39, 372–385 (2023). https://doi.org/10.1007/s11282-022-00647-6

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