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Mozaffari, Asieh, Hashtbaran, Donya, Moghadam, Alireza, Aalaei, Shima. (1401). Stress Distribution in Peri-implant Bone in the Replacement of Molars with One or Two Implants: A Finite Element Analysis. سامانه مدیریت نشریات علمی, 24(Supplement-March-2023), 132-137. doi: 10.30476/dentjods.2022.92584.1659
Asieh Mozaffari; Donya Hashtbaran; Alireza Moghadam; Shima Aalaei. "Stress Distribution in Peri-implant Bone in the Replacement of Molars with One or Two Implants: A Finite Element Analysis". سامانه مدیریت نشریات علمی, 24, Supplement-March-2023, 1401, 132-137. doi: 10.30476/dentjods.2022.92584.1659
Mozaffari, Asieh, Hashtbaran, Donya, Moghadam, Alireza, Aalaei, Shima. (1401). 'Stress Distribution in Peri-implant Bone in the Replacement of Molars with One or Two Implants: A Finite Element Analysis', سامانه مدیریت نشریات علمی, 24(Supplement-March-2023), pp. 132-137. doi: 10.30476/dentjods.2022.92584.1659
Mozaffari, Asieh, Hashtbaran, Donya, Moghadam, Alireza, Aalaei, Shima. Stress Distribution in Peri-implant Bone in the Replacement of Molars with One or Two Implants: A Finite Element Analysis. سامانه مدیریت نشریات علمی, 1401; 24(Supplement-March-2023): 132-137. doi: 10.30476/dentjods.2022.92584.1659

Stress Distribution in Peri-implant Bone in the Replacement of Molars with One or Two Implants: A Finite Element Analysis

Journal of Dentistry
مقاله 8، دوره 24، Supplement-March-2023 - شماره پیاپی 1، خرداد 2023، صفحه 132-137    اصل مقاله (567 K)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.30476/dentjods.2022.92584.1659
نویسندگان
Asieh Mozaffari1؛ Donya Hashtbaran2؛ Alireza Moghadam2؛ Shima Aalaei* 3
1Dept. of Periodontics, Faculty of Dentistry, Qazvin University of Medical Sciences, Qazvin, Iran.
2Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran.
3Dept. of Prosthodontics, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran.
چکیده
Statement of the Problem: In most cases, insertion of single implants with a standard diameter is used to replace a molar tooth but placing two implants with a narrow diameter seems to be a viable treatment modality to withstand functional and biomechanical forces.
Purpose: This study aimed to evaluate and compare stress distribution in the bone surrounding a single molar area rehabilitated by a single implant versus two implants with a narrow diameter.
Materials and Method: The study was conducted by computer-aided in vitro modeling. The initial model used a single implant, 4.8 mm wide in diameter, inserted with a 3.9-mm distance from both sides and 12.6-mm mesiodistal space. The second model used two 3.3-mm narrow-sized implants with a 3-mm distance from one another, 1.5 mm from both sides, and a 12.6-mm mesiodistal space. Following the completion of these models, a 100-N force was exerted obliquely, once in three locations and once in the mesial aspect of the implant-supported crown. Stress distribution was then measured using finite element analysis (FEA) with ANSYS Workbench software package in both models.
Results: The maximum stress in the bone around the single implant was less than that around double implants. The maximum stress of cortical bone in three-point loading was lower than mesial loading either in one (146.7 vs. 126.72 MPa) or two implants model (186.8 vs. 139.24).
Conclusion: According to the results, because of more cortical bone contact area, the stress of surrounding bone in wide implant was decreased. 
کلیدواژه‌ها
Single-Tooth Implants؛ Dental Prosthesis, Implant-supported؛ Finite Element Analyses؛ Molar
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