Comparison of Stability of Resorbable and Titanium Fixation Systems by Finite Element Analysis After Maxillary Advancement Surgery

Uckan S., Veziroglu F., Soydan S. S., Uckan E.

JOURNAL OF CRANIOFACIAL SURGERY, cilt.20, sa.3, ss.775-779, 2009 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 3
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1097/scs.0b013e3181a2d871
  • Dergi Adı: JOURNAL OF CRANIOFACIAL SURGERY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.775-779
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Hayır

Özet

In this study, three-dimensional modeling and finite element analysis were used to evaluate and compare the stability of Le Fort I osteotomy fixed with titanium and resorbable fixation systems under molar and incisor bite forces. A three-dimensional model of 5-mm advanced hemimaxilla was generated. Contact analyses between the tipper and lower segments were prescribed. Two L-plates were inserted on this model via simulation. Displacement, principal stresses, and principal elastic strains were evaluated under 44-N, 125-N incisor and, 250-N molar bite forces. These results suggest that Le Fort I osteotomies fixed with titanium miniplates and screws were stable under all tested forces. However, in resorbable group, under incisor bite forces greater than 44 N, there is a great risk of plate fracture, screw deformation, and/or failure.