title: ÐÐ¾Ð½ÐµÑÐ½Ð¾-ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑÑÐ½Ð¾-Ñ Ð¸ÑÑÑÐ³Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ°ÑÑÐ¸ÑÐµÐ½Ð¸Ñ Ð²ÐµÑÑ Ð½ÐµÐ¹ ÑÐµÐ»ÑÑÑÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Finite element modeling and investigation of surgically assisted maxillary expansion with orthodontic appliances
Creators: name: Ð¨Ð¾ÑÐµÐ²Ð°, ÐÐ»ÐµÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð¼ÐµÑÐ¾Ð´ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð²
Ð½Ð°Ð¿ÑÑÐ¶ÑÐ½Ð½Ð¾-Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ
Ð¿ÑÐµÐ´ÐµÐ» ÑÐµÐºÑÑÐµÑÑÐ¸
Ð±ÑÑÑÑÐ¾Ðµ ÑÐ°ÑÑÐ¸ÑÐµÐ½Ð¸Ðµ Ð²ÐµÑÑ Ð½ÐµÐ¹ ÑÐµÐ»ÑÑÑÐ¸
Ð´Ð¸ÑÑÑÐ°ÐºÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¾ÑÑÐµÐ¾Ð³ÐµÐ½ÐµÐ·
Ð¾ÑÑÐ¾Ð´Ð¾Ð½ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑ
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ÑÐµÐ»ÑÑÑÐ½Ð¾-Ð»Ð¸ÑÐµÐ²Ð°Ñ Ñ Ð¸ÑÑÑÐ³Ð¸Ñ
finite element model
stress-strain state
yield strength
rapid maxillary expansion
distraction osteogenesis
orthodontic appliances
mini-screws
osteotomy
maxillofacial surgery

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description: The given work is devoted to studying different techniques of surgically assisted rapid maxillary expansion with orthodontic appliances in the patient with completed facial skeleton growth in order to determine the optimal technique. The research set the following goals: 1. development of finite element model including teeth and skull without mandible, as well as different surgical scenarios and orthodontic appliances; 2. performing stress-strain analysis for all the techniques considered; 3. comparative analysis of the results obtained; 4. defining criteria for evaluating the results of maxillary expansion techniques; 5. detection of the optimal technique of maxillary expansion in the patient with completed facial skeleton growth, based on the defined criteria. In this paper, four scenarios of surgical intervention, two different orthodontic appliances and two positioning configurations of them are considered. Orthodontists and maxillofacial surgeons proposed all of the above. For all the considered techniques, displacement, stress and plastic strain distributions in the maxilla were obtained using finite element method. Their comparative analysis was performed, as well as criteria for evaluating the results of maxillary expansion were defined. Based on these criteria, it was determined that the optimal technique of maxillary expansion in the patient with completed facial skeleton growth is expansion of the maxilla with two-screw expander combined with midpalatal suture osteotomy.