Aspirantskiy Vestnik PovolzhiyaAspirantskiy Vestnik Povolzhiya2072-23542410-3764Samara State Medical University11500510.55531/2072-2354.2023.23.1.21-24Research ArticleBiometric parameters of the upper dental arch in patients with a stable result of orthodontic treatment of abnormal position of the crowns of the maxillary caninesRusanovaDaria A.<p>Postgraduate Student of the Department of Pediatric Dentistry and Orthodontics</p>rurusanovs@gmail.comhttps://orcid.org/0000-0002-1321-4871Perm State Medical University named after Academician E.A. Wagner2103202323121243011202216012023Copyright © 2023, Rusanova D.A.2023<p><strong>Aim</strong> to evaluate the metric parameters of the upper dentition in patients with a stable result of orthodontic treatment of anomalies in the position of the crowns of the upper canines in the long-term follow-up period.</p>
<p><strong>Material and methods.</strong> We conducted an open study on a sample of patients after orthodontic treatment using clinical and instrumental methods. We analyzed 126 clinical cases of patients aged from 18 to 44 years with completed orthodontic treatment of abnormal position of the crowns of the maxillary canines with satisfactory aesthetic and functional results. The duration of the retention period ranged from 5 to 10 years. 75 patients met the inclusion criteria for the study.</p>
<p><strong>Results.</strong> The study showed that the biometric parameters of the dental arches after the end of orthodontic treatment did not always correspond to the individual norm of a patient. An increase in the transversal size of the upper dentition in the region of the premolars was determined in 44 patients (58.6%), a slight narrowing in the region of the first molars in 34 patients (45.4%), lengthening or shortening of the anterior part of the dental arch in 32 (42.7%) and 23 (30.6%) patients, respectively. With the proportionality of the mesio-distal dimensions of the incisors of the upper and lower jaws (Tonn's Index 1.340.03) and the relative macrodontia of the canines of the lower jaw (anterior Bolton's ratio 81.03.2%), the symmetrical position of the crowns of canines of the upper jaw and the value of the rotational angle of 28.02.1corresponded to the functionally optimal results of orthodontic treatment.</p>
<p><strong>Conclusion.</strong> Aesthetically satisfactory and functionally stable results of orthodontic treatment of patients with anomalies in the position of the crowns of the maxillary canines during the retention period correspond to the following biometric parameters of the upper dental arch and / or their combination: lengthening of the anterior region, an increase in the transversal size in the region of the first premolars and a decrease in the region of the first molars in maintaining the individual norm of intercanine width. The stability of the results of orthodontic treatment in patients with anomalies in the position of the canines and the shape and / or size of the dental arches is ensured by the maximum possible leveling of violations of the anatomical and topographic norms of the teeth position.</p>canine abnormal positionupper jawdental arch biometric parametersorthodontic treatmentretention periodstable resultаномалии положения клыковверхняя челюстьбиометрические параметры зубной дугиортодонтическое лечениеретенционный периодстабильный результат[Becker A. Orthodontic Treatment of Impacted Teeth. Wiley-Blackwell, 2012.][Ishmurzin PV. Influence of orthodontic treatment on quality of life index in patients with temporomandibular joint dysfunction. Pediatric dentistry and dental prophylaxis. 2012;1(40):41-43. (In Russ.). [Ишмурзин П.В. Влияние ортодонтического лечения на показатели качества жизни пациентов с дисфункцией височно-нижнечелюстного сустава. Стоматология детского возраста и профилактика. 2012;1(40):41-43].][Davydov BN, Domenyuk DA, Dmitrienko SV, et al. Morphometric analysis of relationships of basic dimensions of dental arts taking into account individual gnatic types. Medicinskij alfavit. 2019;1(5):37-44. (In Russ.). [Давыдов Б.Н., Доменюк Д.А., Дмитриенко С.В., и др. Морфометрический анализ взаимоотношений базовых размеров зубных дуг с учетом индивидуальных гнатических типов. Медицинский алфавит. 2019;1(5):37-44]. doi: 10.33667/2078-5631-2019-1-5(380)-37-44][Ishmurzin PV, Danilova MA. Functional disorders of patients with transversal occlusion anomalies. Ortodontiya. 2004;3-4:47. (In Russ.). [Ишмурзин П.В., Данилова М.А. Функцио-нальные нарушения у пациентов с трансверзальными аномалиями окклюзии. Ортодонтия. 2004;3-4:47].][Ishmurzin PV, Konkova AM. Evaluation of the aesthetics of the profile of the nasolabial complex of young people. Actual problems in dentistry. 2018;14(1):106-109. (In Russ.). [Ишмурзин П.В., Конькова А.М. Оценка эстетики профиля назолабиального комплекса у лиц молодого возраста. Проблемы стоматологии. 2018;14(1):106-109]. doi: 10.24411/2077-7566-2018-000019][Miresmaeili A, Farhadian N, Mollabashi V, et al. Web-based evaluation of experts’ opinions on impacted maxillary canines forced eruption using CBCT. Dental Press J Orthod. 2015;20(3):163-169.][van der Linden D, Frans PGM. Development of the Human Dentition. Quintessence Publ. Comp. Inc., 2016.][Danilova MA, Ishmurzin PV, Zakharov SV. Use of maxilla, mandible and temporomandibular joint geometrical models for maxillary complex description in norm and at distal occlusion. Ortodontiya. 2012;1(57):15-19. (In Russ.). [Данилова М.А., Ишмурзин П.В., Захаров С.В. Применение геометрических моделей верхней и нижней челюстей, височно-нижнечелюстного сустава для описания изменений челюстного комплекса в норме и при дистальной окклюзии. Ортодонтия. 2012;1(57):15-19].][Milutinovic J, Zelic K, Nedeljkovic N. Evaluation of Facial Beauty Using Anthropometric Proportions. The Scientific World Journal. 2014:428250. doi: 10.1155/2014/428250][Danilova MA, Khalova YuS, Ishmurzin PV. Treatment approaches to patients with distal occlusion. Ortodontiya. 2019;4(88):41-50. (In Russ.). [Данилова М.А., Ишмурзин П.В., Халова Ю.С. Принципы и методы лечения пациентов с дистальной окклюзией зубных рядов. Ортодонтия. 2019;4(88):41-50].][Megrabyan OA, Ishmurzin PV. Treatment management of patients with mandibular micrognathia and retrognathism in incompleted facial skeleton growth period. Actual problems in dentistry. 2019;15(3):103-109. (In Russ.). [Меграбян О.А., Ишмурзин П.В. Тактика лечения ретро- и микрогнатии нижней челюсти у пациентов с незавершенным ростом лицевого скелета. Проблемы стоматологии. 2019;15(3):103-109]. doi: 10.18481/2077-7566-2019-15-3-103-109][Aksakalli S, Demir A. Facial soft tissue changes after orthodontic treatment. Niger J Clin Pract. 2014;17(3):282-286. doi: 10.4103/1119-3077.130226][Proffit WR, Fields HWJr, Sarver DM. Contemporary Orthodontics. Elsevier, 2012.]