Distribution of forces on supporting teeth in the midpalatal expander during “Hyrax” screw pre-load

• Autorzy: Młynarek K. , Żmudzki J.

Identyfikatory

DOI

10.5604/01.3001.0013.4138

• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of the study was to determine forces which are transferred to supporting teeth during the treatment with the midpalatal device with Hyrax screw and to evaluate orthodontic and orthopaedic effects based on displacement analysis. Design/methodology/approach: The finite element method (FEM) was used to simulation the midpalatal expansion forces activated by the screw pre-loaded during a turn of 180° which corresponds to daily recommended value. Distribution of expansion forces of Hyrax device was calculated as reaction forces on elastic supports with stiffness corresponding to the teeth working on periodontal ligament in alveolar bone. Findings: On the basis of the displacement analysis was observed the movement of supporting teeth by a value higher than 0.1 mm which corresponds to the recommended daily value. The midpalatal suture splitting forces were determined on the first premolars with a value of 32.8 N and on the first premolars of 44.2 N. Research limitations/implications: The studies did not take into account the shape of palate other craniofacial bones and their stiffness. Practical implications: Adjusting the stiffness of the device to degree of ossification midpalatal suture and teeth mobility. Searching for new solutions which eliminate the negative phenomenon of tilting teeth during the expansion of maxilla and recommending a surgically assisted techniques. Originality/value: The simulation confirmed that treatment with Hyrax screw gives a uniform expansion with values of forces corresponded to stiffness of premolar and molar teeth. The studies have indicated a possibility of tendency to tilting the supporting teeth what is a negative phenomenon.

Słowa kluczowe

EN

rapid palatal expansion; Hyrax screw pre-load; stress; displacement; finite elements analysis; FEA

PL

szybka ekspansja podniebienia; naprężenie; przemieszczenie; analiza elementów skończonych; FEA

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2019
• Tom: Vol. 93, nr 1-2
• Strony: 26--31
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Młynarek K.

• Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland

autor

Żmudzki J.

• [e-mail] Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland

Bibliografia

• [1] I. Karłowska, Fundamentals of contemporary orthodontics. A handbook for students of dentistry, Third Edition, PZWL, Warsaw, 2008 (in Polish).
• [2] A. Agarwal, R. Mathur, Maxillary Expansion, International Journal of Clinical Pediatric Dentistry 3/3 (2010) 139-146, DOI: 10.5005/jp-journals-10005-1069.
• [3] J.C. Bennett, R.P. McLaughin, Orthodontic Management of the Dentition with the Preadjusted Appliance, Mosby, London & New York, 2002.
• [4] W.R. Proffit, H.W. Fields, D.M. Sarver, Contemporary orthodontics, Part I, Fourth Edition, Mosby Elsevier, St. Louis, 2007.
• [5] F. Angelieri, L.H.S. Cevidanes, L. Franchi, J.R. Gonçalves, E. Benavides, J.A. McNamara, Midpalatal suture maturation: Classification method for individual assessment before rapid maxillary expansion, American Journal of Orthodontics and Dentofacial Orthopedics 144/5 (2013) 759-769, DOI: 10.1016/j.ajodo.2013.04.022.
• [6] H. Hyeon-Shik, K. Wang-Sik, K. Jeong-Moon, McNamara, Longitudinal measurements of tooth mobility following orthodontic treatment, Korean Journal of Orthodontics 40/1 (2010) 34-39, DOI: 10.4041/kjod.2010.40.1.34.
• [7] N. Dogra, M.S. Sidhu, A. Dabas, S. Grover, M. Gupta, Cone-beam computed tomography evaluation of dental, skeletal, and alveolar bone changes associated with bonded rapid maxillary expansion, Journal of Indian Orthodontic Society 50/1 (2016) 19-25, DOI: 10.1177/0974909820160105.
• [8] T.C. White, J.H. Gardiner, B.C. Leighton, Orthodontics for dental students, Third Edition, MacMillan, London, 1985.
• [9] D.M. Darsey, J.D. English, C.H. Kau, R.K. Ellis, S. Akyalcin, Does hyrax expansion therapy affect maxillary sinus volume? A cone-beam computed tomography report, Imaging Science in Dentistry 42/2 (2012) 83-88, DOI: 10.5624/isd.2012.42.2.83.
• [10] U. Wirtz, O-atlas. Atlas of orthodontic and orofacial orthopedic technique, Polkard, Olsztyn, 2013 (in Polish).
• [11] W. Schulte, B. d'Hoedt, D. Lukas, M. Maunz, M. Steppeler, Periotest for measuring periodontal characteristics- Correlation with periodontal bone loss, Journal of Periodontal Research 27/3 (1992) 184-190.
• [12] S. Graf, M.A. Cornelis, G.H. Gameiro, P.M. Cattaneo, Computer-aided design and manufacture of hyrax devices: Can we really go digital?, American Journal of Orthodontocs and Dentofacial Orthopedics 152/6 (2017) 870-874, DOI: 10.1016/j.ajodo.2017.06.016.
• [13] J. Priyadarshini, C.M. Mahesh, B.S. Chandrashekar, A. Sundara, A.V. Arun, V.P. Reddy, Stress and displacement patterns in the craniofacial skeleton with rapid maxillary expansion-a finite element method study, Progress in Orthodontics 18/1 (2017) Article Number: 17, DOI: 10.1186/s40510-017-0172-2.
• [14] L.C. Fernandes, R.W.F. Vitral, P.Y. Noritomi, C.A. Schmitberger, M.J. da Silva Campos, Influence of the hyrax expander screw position on stress distribution in the maxilla: A study with finite elements, American Journal of Orthodontics and Dentofacial Orthopedics 155/1 (2019) 80-87, DOI: https://doi.org/10.1016/j.ajodo.2018.03.019.
• [15] J.A. Guerrero-Vargas, T.A. Silva, S. Macari, E.B. de Las Casas, D.A. Garzon-Alvarado, Influence of interdigitation and expander type in the mechanical response of the midpalatal suture during maxillary expansion, Computer Methods and Programs in Bio-medicine 176 (2019) 195-209, DOI: https://doi.org/10.1016/j.cmpb.2019.05.007.
• [16] F. Łabiszewska-Jaruzelska, Jaw orthopaedics, Third Edition, PZWL, Warsaw, 1995 (in Polish).
• [17] M. Mituś-Kenig, M. Fijas, M. Kowalczyk, A. Nowak, The use of the appliance with a Hyrax screw in the treatment of patients with maxillary constriction, Orthodontic Forum 8/3 (2012) 115-123 (in Polish).
• [18] B. Biedziak, M. Kurzawski, Orthopedic-orthodontic treatment of maxilla's narrowing by palatal expansion, Borgis - New Stomatology 3 (2004) 122-124 (in Polish).
• [19] M.A. Darendeliler, C. Strahm, J.P. Joho, Light maxillary expansion forces with the magnetic expansion device. A preliminary investigation, European Journal of Orthodontics 16/6 (1994) 479-490.
• [20] H. Işeri, A. E. Tekkaya, Ö. Öztan, S.Bilgiç, Biomechanical effects of rapid maxillary expansion on the craniofacial skeleton, studied by the finite element method, European Journal of Orthodontics 20/4 (1998) 347-356.
• [21] J.F. Zimring, R.J. Isaacson, Forces produced by rapid maxillary expansion III. Forces present during retention, Angle Orthodontist 35/3 (1965) 178-186.

Uwagi

EN

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).