Investigation of Different Miniscrew-Supported Mesialization Protocols with Finite Element Analysis

Year 2025, Volume: 12 Issue: 2, 234 - 239, 22.08.2025

Gülcan Çetin Taşkıran , Mehmet Ali Yavan , Nihal Hamamcı

https://doi.org/10.15311/selcukdentj.1522384

Abstract

Background: To examine the force and stress distributions caused by two different mesialization methods in dentoalveolar structures in cases of congenital bilateral maxillary lateral incisor agenesis (MLIA) with finite element analysis (FEA).
Materials and Methods: Two different models were created using FEA. In both models, miniscrews were placed in the palatal region. In the first model, 450 g of force was applied to the miniscrews over the transpalatal arch with the aid of elastic chain. In the second model, the central teeth and miniscrews were connected by using a minimum anchorage unit and 450 g of force was applied to all teeth with the aid of elastic chain over the archwire. For both models, von Mises stress, maximum and minimum principal stresses, and displacement values were recorded.
Results: In the first model, the maximum Von Mises stress was observed in the cervix of the miniscrews due to the direct application of the force to the miniscrews. In the second model, the stress was not as intense as in the first model since the force was not applied directly. The greatest displacement was observed in the maxillary first molars in the first model and in the canines in the second model. Compressive and tensile stresses were observed in the maxillary anterior teeth in the second model due to the effect of the elastic chain, while the tensile stress in the maxillary anterior teeth in the first model was almost zero. The amount of transverse and sagittal displacement in the maxillary teeth was higher in the second model compared to the first model.
Conclusion: The maximum stress was in the miniscrews in the first model and in the maxillary anterior teeth in the second model. The greatest displacement was observed in the first molars in the first model and in the canines in the second model.
Key words: Finite element analysis, congenital maxillary lateral incisor agenesis, mesialization, miniscrew

Keywords

Finite element analysis, congenital maxillary lateral incisor agenesis, mesialization, miniscrew

Ethical Statement

The study protocol was approved by Adıyaman University Non-Interventional Clinical Research Ethics Committee (No: 2021/05-3).

Supporting Institution

The study was supported by Adıyaman University Scientific Research Project Department (Project Code: DHFDUP/2021-0003).

Project Number

DHFDUP/2021-0003

Farklı minivida destekli total mezyalizayon metotlarının sonlu elemanlar analizi ile incelenmesi

Abstract

Amaç: Konjenital çift taraflı maksiller lateral kesici eksikliği (KÇML) vakalarında iki farklı mezyalizasyon metodunun sebep olduğu kuvvet ve stres dağılımının sonlu elemanlar analizi (SEA) ile araştırılması.
Gereç ve Yöntemler: SEA kullanılarak iki farklı model yaratıldı. Birinci modelde 450 g kuvvet transpalatal ark üzerinden elastik zincir yardımıyla minividalara uygulandı. İkinci modelde santral dişler minividalara minimum ankraj ünitesi ile bağlandı ve 450 g kuvvet tüm dişlere elastik zincir yardımıyla ark teli üzerinden uygulandı. Her iki model için von Mises stresi, maksimum ve minimum ana stresleri ve yer değiştirme değerleri kaydedildi. Bulgular: İlk modelde maksimum von Mises stresi kuvvetin mninividalara direk uygulanması sebebiyle minividanın boyun kısmında gözlendi. İkinci modelde kuvvet direk olarak uygulanmadığı için stres birinci modeldeki kadar yoğun değildi. En yüksek yer değiştirme birinci modelde maksiller birinci molarlardai ikinci modelde ise kaninlerdeydi. İkinci modelde üst ön dişlerde elastik zincirin etkisiyle basma ve çekme gerilmeleri gözlenirken, birinci modelde üst ön dişlerde çekme gerilmesi neredeyse sıfırdı. İkinci modelde üst dişlerdeki enine ve sagittal yer değiştirme miktarı birinci modele göre daha yüksekti.
Sonuç: Maksimum stres birinci modelde mini vidalarda, ikinci modelde ise maksiller ön dişlerdeydi. En büyük yer değiştirme birinci modelde birinci azı dişlerinde, ikinci modelde ise köpek dişlerinde gözlendi.
Anahtar kelimeler: Sonlu elemanlar analizi, konjenital maksiller lateral eksikliği, mezyalizyon, minivida

Keywords

Sonlu elemanlar analizi, konjenital maksiller lateral eksikliği, mezyalizyon, minivida

Ethical Statement

Çalışma protokolü Adıyaman Üniversitesi Girişimsel Olmayan Klinik araştırmalar Etik Kurulu Tarafından onaylanmıştır. (No: 2021/05-3).

Supporting Institution

Çalışma Adıyaman Üniversitesi Bilimsel Araştırma Proje Departmanı tarafından desteklenmiştir (Proje kodu: DHFDUP/2021-0003).

Project Number

DHFDUP/2021-0003

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