<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Acta Universitatis Dentistriae et Chirurgiae Maxillofacialis</journal-id><journal-title-group><journal-title xml:lang="en">Acta Universitatis Dentistriae et Chirurgiae Maxillofacialis</journal-title><trans-title-group xml:lang="kk"><trans-title>Acta Universitatis Dentistriae et Chirurgiae Maxillofacialis</trans-title></trans-title-group><trans-title-group xml:lang="pt"><trans-title>Acta Universitatis Dentistriae et Chirurgiae Maxillofacialis</trans-title></trans-title-group><trans-title-group xml:lang="ru"><trans-title>Университетская стоматология и челюстно-лицевая хирургия</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>Acta Universitatis Dentistriae et Chirurgiae Maxillofacialis</trans-title></trans-title-group></journal-title-group><issn publication-format="electronic">3034-297X</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">678090</article-id><article-id pub-id-type="doi">10.17816/uds678090</article-id><article-id pub-id-type="edn">OPOMEB</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Scientific research</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Научные исследования</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Occlusal–condylar circle on lateral cephalometric radiographs and its diagnostic value in clinical dentistry</article-title><trans-title-group xml:lang="ru"><trans-title>Окклюзионно-суставная окружность боковой телерентгенограммы и ее диагностическое значение в клинической стоматологии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-6601-1856</contrib-id><contrib-id contrib-id-type="spin">4889-3309</contrib-id><name-alternatives><name xml:lang="en"><surname>Mikhalchenko</surname><given-names>Alexey D.</given-names></name><name xml:lang="ru"><surname>Михальченко</surname><given-names>Алексей Дмитриевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Assistant Lecturer</p></bio><bio xml:lang="ru"><p>ассистент кафедры</p></bio><email>lehasik.m@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">5296-9413</contrib-id><name-alternatives><name xml:lang="en"><surname>Yukhnov</surname><given-names>Ilya N.</given-names></name><name xml:lang="ru"><surname>Юхнов</surname><given-names>Илья Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Assistant Lecturer</p></bio><bio xml:lang="ru"><p>ассистент кафедры</p></bio><email>ilyuyhnov@bk.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">4211-9105</contrib-id><name-alternatives><name xml:lang="en"><surname>Kerobyan</surname><given-names>Victoria I.</given-names></name><name xml:lang="ru"><surname>Керобян</surname><given-names>Виктория Игоревна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Assistant Lecturer</p></bio><bio xml:lang="ru"><p>ассистент кафедры</p></bio><email>vkerobyan@inbox.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Volgograd State Medical University</institution></aff><aff><institution xml:lang="kk"></institution></aff><aff><institution xml:lang="pt"></institution></aff><aff><institution xml:lang="ru">Волгоградский государственный медицинский университет</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Volgograd State Medical University</institution></aff><aff><institution xml:lang="ru">Волгоградский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-09-15" publication-format="electronic"><day>15</day><month>09</month><year>2025</year></pub-date><volume>3</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>59</fpage><lpage>65</lpage><history><date date-type="received" iso-8601-date="2025-04-03"><day>03</day><month>04</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-06-03"><day>03</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Эко-вектор</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://stomuniver.ru/unistom/article/view/678090">https://stomuniver.ru/unistom/article/view/678090</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> Advances in radiographic techniques continue to improve diagnostic capabilities, underscoring the relevance of this study.</p> <p><bold>AIM:</bold> This work aimed to determine the diagnostic value of the occlusal–condylar circle on lateral cephalometric radiographs in patients with different types of occlusal relationships.</p> <p><bold>METHODS:</bold> The study included two groups: group 1 comprised radiographs of patients with normal occlusion; group 2 included radiographs of patients with malocclusion and distal-extension edentulous defects. Geometric constructions were created on lateral cephalometric images using the PowerPoint software and established anatomical landmarks. The radius of the occlusal–condylar circle was defined as the distance from the superior point of the condylar head (Cond) to the distal occlusal point of the dental arch.</p> <p><bold>RESULTS:</bold> In group 1, the line of the occlusal–condylar circle passed through the distal occlusal point of the second molar and a point corresponding to two-thirds of the Cond–A line. In group 2, cephalometric analysis focused on occlusal point positions in cases of malocclusion and dental-arch defects due to missing molars with vertical dentoalveolar overeruption of antagonists.</p> <p><bold>CONCLUSION:</bold> The occlusal–condylar circle on lateral cephalometric radiographs can serve as a key reference for establishing the occlusal line in patients with malocclusion and in those who have molar-segment dental-arch defects. The findings may be applicable in clinical settings for diagnosing vertical occlusal anomalies and assessing the outcomes of prosthodontic treatment.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> В настоящее время рентгенологические методы исследования совершенствуются и способствуют улучшению диагностических мероприятий, что определяет актуальность исследования.</p> <p><bold>Цель</bold> — определить диагностическое значение окклюзионно-суставной окружности на боковой телерентгенограмме при различных видах окклюзионного соотношения антагонистов.</p> <p><bold>Методы. </bold>Исследование проводилось в 2 группах: 1-ю группу составили рентгенограммы пациентов с физиологическим прикусом, 2-ю группу — рентгенограммы с аномалиями окклюзии и дистально неограниченными дефектами зубочелюстных арок. Построение геометрических фигур на боковых телерентгенограммах осуществлялось в компьютерной программе Power Point с использованием общепринятых ориентиров. При определении радиуса окклюзионно-суставной окружности измеряли расстояние от верхней точки суставной головки (Cond) до дистальной окклюзионной точки зубной дуги.</p> <p><bold>Результаты.</bold> Установлено, что в 1-й группе линия суставного круга проходила через дистальную окклюзионную точку второго моляра и через точку, соответствующую 2/3 величины линии Cond-А. На телерентгенограммах людей 2-й группы оценивали положение окклюзионных точек при аномалиях окклюзии и дефектах зубных дуг, обусловленных отсутствие моляров при вертикальном зубо-альвеолярном выдвижении антагонистов.</p> <p><bold>Заключение.</bold> В ходе исследования установлено, что окклюзионно-суставная окружность боковой телерентгенограммы представляет собой основной ориентир для построения окклюзионной линии при аномалиях окклюзии и при наличии дефектов зубных арок в молярном отделе. Полученные данные могут применяться в клинической практике при диагностике вертикальных аномалий окклюзии и служить критерием определения эффективности зубопротезирования.</p></trans-abstract><kwd-group xml:lang="en"><kwd>normal occlusion</kwd><kwd>malocclusion</kwd><kwd>cephalometry</kwd><kwd>occlusal plane</kwd><kwd>temporomandibular joint</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>физиологическая окклюзия</kwd><kwd>патологическая окклюзия</kwd><kwd>телерентгенография</kwd><kwd>окклюзионная плоскость</kwd><kwd>височно-нижнечелюстной сустав</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Fadeev RA, Timchenko VV. Determination of the optimal occlusal plane in patients with vertical dentoalveolar anomalies. Vestnik NOVSU. 2017;(3):98–104. (In Russ.) EDN: ZDUFGF</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Mozharov VN, Korobkeev AA, Shkarin VV, et al. Peculiarities of the orientation of the occlusion plane in people with different types of the gnatic part of the face. Medical News of North Caucasus. 2021;16(1):42–45. doi: 10.14300/mnnc.2021.16011 EDN: NIWGYF</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Shkarin VV, Fomin IV, Dmitrienko TD, et al. Algorithm for constructing an occlusal plane and determining the location of occlusal points on a lateral teleradiography. Volgograd Scientific Medical Journal. 2023;20(4):45–51. EDN: TXJYIR</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Shkarin VV, Kochkonyan TS, Domenyuk DA, et al. Occlusal plane orientation in patients with dentofacial anomalies based on morphometric cranio-facial measurements. Archiv EuroMedica. 2021;11(1):116–121. doi: 10.35630/2199-885X/2021/11/1.26 EDN: UPFMEJ</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Dmitrienko SV, Krayushkin AI, Sapin MR. Anatomy of human teeth. Moscow, N. Novgorod: NGMA; 2003. 196 p. (In Russ.)</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Domenyuk DA, Davydov BN, Vedeshena EG, et al. Variability of odontometric parameters in patients with physiological occlusion of permanent teeth and mesognathic dental arches. The Dental Institute. 2015;(3):74–77. EDN: UIYIOP</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Dmitrienko SV, Shkarin VV, Dmitrienko TD. Methods of biometric study of dentoalveolar arches. Volgograd; VolgGMU; 2022. 220 p. (In Russ.) EDN: JWYHWO</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Shkarin VV, Dmitrienko TD, Yagupova VT. Analysis of classical and modern methods of biometric examination of dental arches in the period of permanent teeth (literature review). Journal of Volgograd State Medical University. 2022;19(1):9–16. doi: 10.19163/1994-9480-2022-19-1-9-161 EDN: RZKFLT</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Korobkeev AA, Tsaturyan LD, Vedeshena EG. Features of maxillofacial region in macrodontism of permanent teeth. Stavropol: Izd-vo StSMU; 2016. 159 p. (In Russ.)</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Domenyuk DA, Davydov BN, Vedeshena EG, et al. Major morphometric parameters of dental arches in people with brachygnathic dental arch and macro-, micro-, and normodontic dental systems. The Dental Institute. 2015;(3):44–47. EDN: UIYIKT</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Shkarin VV, Domenyuk DA, Lepilin AV. Odontometric indices fluctuation in people with physiological occlusion. Archiv EuroMedica. 2018;8(1):12–18. doi: 10.35630/2199-885X/2018/8/1/12 EDN: XSOIWL</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Gorelik EV, Izmaylova TI, Krayushkin AI, et al. Peculiarities of the craniofacial complex at different age periods. Morphology. 2006;(4):39. (In Russ.) EDN: TRVXZJ</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Shkarin VV, Grinin VM, Halfin RA. Specific features of grinder teeth rotation at physiological occlusion of various gnathic dental arches. Archiv EuroMedica. 2019;9(2):168–173. doi: 10.35630/2199-885X/2019/9/2/168 EDN: BJNSTX</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Korobkeev AA, Korobkeeva YA, Grinin VM, et al. Anatomical and topographical features of temporomandibular joints in various types of mandibular arches. Medical News of North Caucasus. 2019;14(2):363–367. doi: 10.14300/mnnc.2019.14089 EDN: TLTOMX</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Dmitrienko SV, Fomin IV, Domenyuk DA. Enhancement of research method for spatial location of temporomandibular elements and maxillary and mandibular incisor. Archiv EuroMedica. 2019;9(1):38–44. doi: 10.35630/2199-885X/2019/9/1/38 EDN: AQIIYC</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Domenyuk DA, Konnov VV, Vedeshena EG, et al. Pathogenesis, clinical features and treatment methods of musculoskeletal dysfunction in dental patients with sagittal occlusion anomalies. Stavropol: StSMU; 2015. 238 p. EDN: ULHTHZ</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Davydov BN, Sumkina OB, Budaichiev GM, et al. Changes of the morphological state of tissue of the paradontal complex in the dynamics of orthodontic transfer of teeth (experimental study). Periodontology. 2018;23(1):69–78. doi: 10.25636/PMP.1.2018.1.15 EDN: XNSCQP</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Domenyuk DA, Chukov SZ, Vedeshena EG, et al. Morphology of dental and periodontal tissues under dosed loading. Stavropol: StSMU; 2016. 244 p. EDN: WZRRZX</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Davydov BN, Domenyuk DA, Dmitrienko SV. Peculiarities of microcirculation in peridont tissues in children of key age groups sufficient type 1 diabetes. part I. Periodontology. 2019;24(1):4–10. doi: 10.25636/PMP.1.2019.1.1 EDN: YZKXMD</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Dmitrienko SV, Ivanov LP, Milikevich VY, et al. Classification of defects of dental rows in children and methods of orthopaedic treatment. Stomatology. 1994;73(4):61–62. EDN: NVYVNK</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Dmitrienko SV. Effectiveness of prosthetics of defects of teeth and dental rows in children with digestive diseases. Pediatric Dentistry. 2000;(1–2):104. (In Russ.) EDN: CXTAVY</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Sedova NN, Dmitrienko SV. Your business is dentistry. Regulatory framework in dentistry. Moscow: Medical Book; 2001. 114 p. ISBN: 5-86093-065-8</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Fadeev RA, Timchenko VV. Cephalometric diagnosis of dentoalveolar anomalies. Saint Petersburg: Eco-Vector. 2017. 93 p. (In Russ.) EDN: QPVFAI</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Domenyuk DA, Davydov BN, Vedeshena EG, et al. Radiological and morphometric methods for comprehensive assessment of cephalo-odontologic status in dental patients (Part I). The Dental Institute. 2017;(2):58–61. EDN: YUEDYJ</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Domenyuk DA, Davydov BN, Vedeshena EG, et al. Radiological and morphometric methods in comprehensive assessment of cephalo-odontological status of dental patients (Part II). The Dental Institute. 2017;(3):32–35. EDN: ZRDQZN</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Davydov BN, Domenyuk DA, Dmitrienko SV, et al. Improving diagnostics of periodontal diseases in children with connective tissue dysplasia based on x-ray morphometric and densitometric data. Periodontology. 2020;25(4): 266–275. doi: 10.33925/1683-3759-2020-25-4-266-275 EDN: ZTYGYT</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Chizhikova TS, Klimova NN, Dmitrienko DS, et al. Characteristics of dispensary groups of students during orthodontic treatment. International Journal of Applied and Fundamental Research. 2011;(6):108a. EDN: NECNGB</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Chizhikova TS, Klimova NN, Dmitrienko DS, et al. Main tasks of an orthodontist in the course of medical examination of students International Journal of Applied and Basic Research. 2011;(6):108. EDN: NECNFR</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>Fadeev RA, Lanina AN, Vishneva NV, et al. Influence of the conditionality of maxillofacial anomalies on the choice of orthodontic treatment tactics. Acta Universitatis Dentistriae et Chirurgiae Maxillofacialis. 2023;1(1):29–36. doi: 10.17816/uds516530 EDN: FLDWHC</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>Dmitrienko SV, Chizhikova TS, Yusupov RD. Effectiveness of treatment of students with anomalies and deformations of maxillofacial area during the implementation of the planned clinical examination. International Journal of Applied and Basic Research. 2016;(9–2):210–213. EDN: WJVHEB</mixed-citation></ref></ref-list></back></article>
