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Stomatologija 2025; 27 (3): 51-7 139 KB

Changes in the architectonics of the lower jaw in children depending on age

Rostyslav Yehorov¹, Oleksandr Kaniura², Andrii Kopchak³, Alona Melnyk²

Summary

Objective. To study the peculiarities of the anatomical structure and architecture of the mandibular in children at different age to CT data.

Methods. 161 CT scans of the bones of the facial skull of children aged 1 to 18 years were selected. Orientation of the tomographic slices was based on the standardized protocol of CT studies. Differences were considered significant when p values were lower than 0.05.

Results. The width of the lower jaw was greatest in the area of the angle and chin symphysis. The general dynamics of the thickening of the cortical layer of the lower jaw from the vestibular side differed from the dynamics of the formation of the lingual cortex. The density of the cortical layer increased with age: the difference between its average value in the age groups of 1-3 years and 14-17 years was 16-46%.

Conclusions. The width of the lower jaw in the process of its growth and development increases in different areas by an average of 6-58%. The thickening of the cortical layer with age is more intensive than the general increase in its thickness and amounts to 41-51% for various areas of the jaw, except for the head of the condylar process. The radiological density of the cortical layer increases with age by 6-67%, and reaches 2064.2±180.54 in the older age group.

Key words: mandibular, lower jaw, children, computer tomography, bone.

Received: 02 12 2024

Accepted for publishing: 22 09 2025

¹Department of Surgical dentistry and Maxillofacial Surgery of Pediatric Age, Bogomolets National Medical University, Kyiv, Ukraine

²Department of Orthodontics and Propedeutics of Prosthetic Dentistry, Bogomolets National Medical University, Kyiv, Ukraine

³Department of Maxillofacial Surgery and Innovative Dentistry, Bogomolets National Medical University, Kyiv, Ukraine

Address correspo ndence to Rostyslav Yehorov, Department of Surgical dentistry and Maxillofacial Surgery of Pediatric Age, Bogomolets National Medical University, T. Shevchenko Blvd 13, 01601 Kyiv, Ukraine.

E-mail address: dr.egorovr@icloud.com



	Baltic Dental and Maxillofacial Journal

2025, Vol. 27, No. 3 CONTENTS SCIENTIFIC ARTICLES Changes in the architectonics of the lower jaw in children depending on age Rostyslav Yehorov, Oleksandr Kaniura, Andrii Kopchak, Alona Melnyk 51-57 Retrospective clinical evaluation of pterygoid implants: A patient study 6-96 months post-implantation Gabrielė Berniūtė, Laurynas Skirbutis, Elžbieta Skirbutytė, Dainius Karpavičius, Dainius Razukevičius, Juozas Žilinskas 58-62 CASE REPORTS Periodontal and endodontic perspectives of vertical root fracture: A case report Nina Shenoy, Arvind Shenoy 63-67 Craniofacial features associated with Hutchinson – Gilford progeria syndrome – A case report Devika S. Pillai, Kumuda Rao, Renita Lorina Castelino, G. Subhas Babu 68-72 © 2026 Stomatologija		Stomatologija 2025; 27 (3): 51-7 139 KB Changes in the architectonics of the lower jaw in children depending on age Rostyslav Yehorov¹, Oleksandr Kaniura², Andrii Kopchak³, Alona Melnyk² Summary Objective. To study the peculiarities of the anatomical structure and architecture of the mandibular in children at different age to CT data. Methods. 161 CT scans of the bones of the facial skull of children aged 1 to 18 years were selected. Orientation of the tomographic slices was based on the standardized protocol of CT studies. Differences were considered significant when p values were lower than 0.05. Results. The width of the lower jaw was greatest in the area of the angle and chin symphysis. The general dynamics of the thickening of the cortical layer of the lower jaw from the vestibular side differed from the dynamics of the formation of the lingual cortex. The density of the cortical layer increased with age: the difference between its average value in the age groups of 1-3 years and 14-17 years was 16-46%. Conclusions. The width of the lower jaw in the process of its growth and development increases in different areas by an average of 6-58%. The thickening of the cortical layer with age is more intensive than the general increase in its thickness and amounts to 41-51% for various areas of the jaw, except for the head of the condylar process. The radiological density of the cortical layer increases with age by 6-67%, and reaches 2064.2±180.54 in the older age group. Key words: mandibular, lower jaw, children, computer tomography, bone. Received: 02 12 2024 Accepted for publishing: 22 09 2025 ¹Department of Surgical dentistry and Maxillofacial Surgery of Pediatric Age, Bogomolets National Medical University, Kyiv, Ukraine ²Department of Orthodontics and Propedeutics of Prosthetic Dentistry, Bogomolets National Medical University, Kyiv, Ukraine ³Department of Maxillofacial Surgery and Innovative Dentistry, Bogomolets National Medical University, Kyiv, Ukraine Address correspo ndence to Rostyslav Yehorov, Department of Surgical dentistry and Maxillofacial Surgery of Pediatric Age, Bogomolets National Medical University, T. Shevchenko Blvd 13, 01601 Kyiv, Ukraine. E-mail address: dr.egorovr@icloud.com