title: Biomechanical comparison of sinus floor elevation and alternative treatment methods for dental implant placement.
abstract: OBJECTIVE
  In this study, we compared the success of sinus lifting and alternative treatment methods in applying dental implants in cases lacking adequate bone due to pneumatization of the maxillary sinus.
  
  
  METHODS
  In a computer environment, 3D models were created using computerized tomography data from a patient. Additionally, implants and abutments were scanned at the macroscopic level, and the resulting images were transferred to the 3D models. Five different models were examined: a control model, lateral sinus lifting (LSL), short dental implant placement (SIP), tilted implant placement (TIP) and distal prosthetic cantilever (DC) use. Vertical and oblique forces were applied in each model. The compression, tension and von Mises stresses in each model were analyzed by implementing a finite element analysis method.
  
  
  RESULTS
  In our study, the LSL method was observed to be the closest to the control model. The TIP model showed high stress values under conditions of oblique forces but showed successful results under conditions of vertical forces, and the opposite results were observed in the SIP model. The DC model provided the least successful results among all models.
  
  
  CONCLUSIONS
  Based on the results of this study, the LSL method should be the first choice among treatment options. Considering its successful results under conditions of oblique forces, the SIP method may be preferable to the TIP method. In contrast, every effort should be made to avoid the use of DCs.
authors: a Faculty of Dentistry, Department of Oral and Maxillofacial Surgery , Istanbul Aydın University , Istanbul Turkey.
authors: Sercan
authors: S
authors: Küçükkurt
authors: b Faculty of Dentistry, Department of Oral and Maxillofacial Surgery , Gazi University , Ankara , Turkey.
authors: Gökhan
authors: G
authors: Alpaslan
authors: c Faculty of Engineering, Department of Manufacturing Engineering , Atılım University , Ankara , Turkey.
authors: Ahmet
authors: A
authors: Kurt
mesh_terms: D019245:Compressive Strength; D003198:Computer Simulation; D015921:Dental Implants; D017267:Dental Prosthesis Design / Q000379:methods*; D003799:Dental Stress Analysis / Q000379:methods*; D004548:Elasticity; D020342:Finite Element Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional; D008422:Materials Testing; D008437:Maxilla / Q000502:physiology; D008443:Maxillary Sinus; D003765:Models, Dental; D011312:Pressure; D059546:Sinus Floor Augmentation / Q000379:methods*; D013314:Stress, Mechanical; D013718:Tensile Strength; D014057:Tomography, X-Ray Computed
chemical_list: D015921:Dental Implants
keywords: Dental implants; dental stress analysis; finite element analysis; sinus floor augmentation