Parham Pedram - D.D.S., Ph.D. Candidate of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
Hannane Ghadirian - Orthodontics Department, Dental School, Tehran University of Medical Sciences, Tehran, Iran
Sepideh Arab - Orthodontics Department, Dental School, Tehran University of Medical Sciences, Tehran, Iran

Background Splinting anterior teeth is a way to fix them after orthodontics treatments. Occlusal trauma from functional or parafunctional forces can cause stress increase and movements of teeth especially while having bone loss. Methods Six anterior teeth with different bone levels were designed in SolidWorks (۲۰۱۰), the models were then transferred to ANSYS Workbench ۱۲.۱. The models were loaded with ۱۸۷ N force on the incisal edges of two incisors. Results Stress on canine was ۰.۴۵ MPa in normal bone height and increased to ۰.۶۰ MPa in five millimeters of anterior teeth bone loss. Labial displacement was less in normal alveolar bone height while it was increased in all those teeth with five millimeter of bone loss. Conclusions Splinting distribute the forces between teeth and the stress production on canine increase while it splinted with low level bone incisors. Anterior teeth also showed tipping movements in reply to increased forces.

Alveolar Bone Loss, Tooth Splint, Stress, finite element method