The effect of posterior dental implant angulations in all-on-four treatment concept on the stresses induced at implant/crystal bone interface using glass fiber reinforced composite framework: Three‑dimensional finite element analysis
Sayed, A., mohamed, S. (2024). The effect of posterior dental implant angulations in all-on-four treatment concept on the stresses induced at implant/crystal bone interface using glass fiber reinforced composite framework: Three‑dimensional finite element analysis. EKB Journal Management System, 70(1), 543-550. doi: 10.21608/edj.2023.249325.2784
Ahmed Magdy Sayed; Sara medhat mohamed. "The effect of posterior dental implant angulations in all-on-four treatment concept on the stresses induced at implant/crystal bone interface using glass fiber reinforced composite framework: Three‑dimensional finite element analysis". EKB Journal Management System, 70, 1, 2024, 543-550. doi: 10.21608/edj.2023.249325.2784
Sayed, A., mohamed, S. (2024). 'The effect of posterior dental implant angulations in all-on-four treatment concept on the stresses induced at implant/crystal bone interface using glass fiber reinforced composite framework: Three‑dimensional finite element analysis', EKB Journal Management System, 70(1), pp. 543-550. doi: 10.21608/edj.2023.249325.2784
Sayed, A., mohamed, S. The effect of posterior dental implant angulations in all-on-four treatment concept on the stresses induced at implant/crystal bone interface using glass fiber reinforced composite framework: Three‑dimensional finite element analysis. EKB Journal Management System, 2024; 70(1): 543-550. doi: 10.21608/edj.2023.249325.2784

The effect of posterior dental implant angulations in all-on-four treatment concept on the stresses induced at implant/crystal bone interface using glass fiber reinforced composite framework: Three‑dimensional finite element analysis

Egyptian Dental Journal
Volume 70, Issue 1 - Serial Number 4, January 2024, Page 543-550  XML PDF (1.33 MB)
Document Type: Original Article
DOI: 10.21608/edj.2023.249325.2784
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Authors
Ahmed Magdy Sayed email orcid 1; Sara medhat mohamedorcid 2
1Associate Professor, Dental Biomaterials Department, Faculty of oral and dental medicine, Modern University for Technology and Information, Cairo, Egypt
2Lecturer of Removable Prosthodontics, Faculty of oral and dental medicine, Modern University for Technology and Information, Cairo, Egypt
Abstract
Objectives: This study evaluated the effect of different angulations of posterior implants in all-on-four treatment concept when using glass fiber reinforced composite (GFRC) framework in comparison to titanium framework material.
Materials and methods: Three-dimensional finite element model of completely edentulous mandible was simulated using cone beam computed tomography. Six different models were created and restored according to all-on-four treatment concept. The six models were created by using three different angulations of the posterior dental implants; 15°, 30° and 45° and using two different framework materials; titanium (Ti) framework and glass fiber reinforced composite (GFRC) framework. At the end of the cantilever part of the frame work, unilateral load of 250N were applied and the resultant von Mises stresses at the implant/crystal bone interface were calculated.
Results: The Ti framework produced lower stresses in comparison with GFRC framework within the same distal implant angulation. Moreover, increasing the tilting of the posterior dental implant developed more stresses at the implant/crystal bone interface.
Conclusion: Using rigid framework material with decreasing the tilting of posterior dental implant angulation transmit less stresses to the implant/crystal bone interface.
Keywords
all-on-four; glass fiber‑reinforced composite; finite element analysis; angulated implants
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