DOI:

10.37988/1811-153X_2023_1_126

Development and mathematical comparative analysis of orthodontic anchor mini-plate and mini-screws

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Authors

  • G.G. Maziashvili 1, postgraduate at the Oral and maxillofacial surgery Department
    ORCID: 0000-0002-6661-5281
  • N.A. Guseynov 1, postgraduate at the Oral and maxillofacial surgery Department
    ORCID: 0000-0001-7160-2023
  • T. Haddad 1, training master of the Oral and maxillofacial surgery Department
    ORCID: 0000-0001-6330-1263
  • A.M. Gusarov 2, PhD in Medical Sciences, associate professor of the Maxillofacial surgery Department
    ORCID: 0000-0002-6583-4685
  • R.F. Mukhametshin 1, PhD in Medical Sciences, assistant professor of the Oral and maxillofacial surgery Department
    ORCID: 0000-0001-6975-7018
  • N.L. Lezhava 1, PhD in Medical Sciences, assistant professor of the Oral and maxillofacial surgery Department
    ORCID: 0000-0003-0624-843X
  • S.Yu. Ivanov 1, 2, Associate Member of the Russian Academy of Sciences, PhD in Medical Sciences, full professor of the Oral and maxillofacial surgery Department; full professor of the Maxillofacial surgery Department
    ORCID: 0000-0001-5458-0192
  • 1 RUDN University, 117198, Moscow, Russia
  • 2 Sechenov University, 119991, Moscow, Russia

Abstract

The use of orthodontic miniscrews is possible on an outpatient basis, since this procedure does not require any special additional preparation or instrumentation. The use of mini screws as a skeletal support is one of the indispensable instruments for tooth distalization. However, disintegration of the miniscrew, perforation of the maxillary sinus, etc. can occur when using them. In clinical practice, orthodontic miniplates are increasingly being used, which in some cases level out the disadvantages of miniscrews. The objective was to develop and substantiate the use of orthodontic miniplates as an alternative to mini screws in orthodontic treatment. >. A virtual model of a titanium plate and a mini-screw was developed, and mathematical modeling and comparative analysis were performed. The plate itself was made by 3D printing with VT6 titanium. The product is built in argon environment to prevent arbitrary ignition and preserve technological properties of titanium. Manufactured products are placed in the heat treatment chamber, where internal stresses of the titanium crystal lattice are removed, which gives an additional guarantee for the durability of the products. >. During loading of both models with orthodontic force of 2.5 and 5.0 N, there was no deformation of the designs themselves. According to calculations, this value was 0.019 mm for the orthodontic mini screw and 0.017 mm for the plate when loaded with 2.5 N, and 0.039 and 0.035 mm when loaded with 5 N, respectively. From a clinical point of view, these values are insignificant. >. The calculations demonstrated that both types of orthodontic skeletal support were effective in terms of their support function for orthodontic appliance under loads within 5 N (500 g). From a clinical point of view, if there is sufficient bone volume, the orthodontic mini screw should be preferred because its installation is less traumatic for the patient. If there is insufficient bone volume for an orthodontic mini screw, effective support can be achieved using a micro-screw-fixed mini plate.

Key words:

skeletal support, orthodontic mini-screw, anchor mini-plate, mini-screw disintegration

For Citation

[1]
Maziashvili G.G., Guseynov N.A., Haddad T., Gusarov A.M., Mukhametshin R.F., Lezhava N.L., Ivanov S.Yu. Development and mathematical comparative analysis of orthodontic anchor mini-plate and mini-screws. Clinical Dentistry (Russia).  2023; 26 (1): 126—131. DOI: 10.37988/1811-153X_2023_1_126

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Received

December 17, 2022

Accepted

February 10, 2023

Published on

March 22, 2023