Effect of alveolar bone support on zygomatic implants in an extra-sinus position – an FEA study

Hdl Handle:
http://hdl.handle.net/10147/605471
Title:
Effect of alveolar bone support on zygomatic implants in an extra-sinus position – an FEA study
Authors:
Freedman, Michael; Ring, Michael; Stassen, Leo F.A.
Publisher:
International Journal of Oral and Maxillofacial Surgery
Journal:
International Journal of Oral and Maxillofacial Surgery
Issue Date:
Feb-2016
URI:
http://hdl.handle.net/10147/605471
Abstract:
Objective: To investigate the influence of maxillary alveolar bone on the stress distribution of zygomatic implants in an extra-sinus position. Materials & Methods: A threedimensional finite element model was created based on a CT scan of an edentulous female patient. Two zygomatic implants were modelled and placed in the skull in an extrasinus position. These were supported by the zygomatic bone and the maxillary alveolar bone and were connected by a fixed bridge. This model was duplicated, and the area of the maxillary alveolar bone supporting the implants was removed. Occlusal and lateral forces were applied to both models and the maximum von Mises stresses were recorded. Results: Higher maximum stresses were noted in the model with no alveolar support. Occlusal stresses were higher than lateral stresses in the model with no alveolar support, while occlusal stresses were lower than lateral stresses in the model with alveolar support. Low stresses were noted in the zygomatic bone in both models. Conclusion: Maxillary alveolar bone support is beneficial in the distribution of forces for zygomatic implants placed in an extra-sinus position.
Item Type:
Article
Language:
en
Keywords:
SURGERY, MAXILLOFACIAL; ZYGOMATIC BONE

Full metadata record

DC FieldValue Language
dc.contributor.authorFreedman, Michaelen
dc.contributor.authorRing, Michaelen
dc.contributor.authorStassen, Leo F.A.en
dc.date.accessioned2016-04-15T14:19:07Zen
dc.date.available2016-04-15T14:19:07Zen
dc.date.issued2016-02en
dc.identifier.urihttp://hdl.handle.net/10147/605471en
dc.description.abstractObjective: To investigate the influence of maxillary alveolar bone on the stress distribution of zygomatic implants in an extra-sinus position. Materials & Methods: A threedimensional finite element model was created based on a CT scan of an edentulous female patient. Two zygomatic implants were modelled and placed in the skull in an extrasinus position. These were supported by the zygomatic bone and the maxillary alveolar bone and were connected by a fixed bridge. This model was duplicated, and the area of the maxillary alveolar bone supporting the implants was removed. Occlusal and lateral forces were applied to both models and the maximum von Mises stresses were recorded. Results: Higher maximum stresses were noted in the model with no alveolar support. Occlusal stresses were higher than lateral stresses in the model with no alveolar support, while occlusal stresses were lower than lateral stresses in the model with alveolar support. Low stresses were noted in the zygomatic bone in both models. Conclusion: Maxillary alveolar bone support is beneficial in the distribution of forces for zygomatic implants placed in an extra-sinus position.en
dc.language.isoenen
dc.publisherInternational Journal of Oral and Maxillofacial Surgeryen
dc.subjectSURGERY, MAXILLOFACIALen
dc.subjectZYGOMATIC BONEen
dc.titleEffect of alveolar bone support on zygomatic implants in an extra-sinus position – an FEA studyen
dc.typeArticleen
dc.identifier.journalInternational Journal of Oral and Maxillofacial Surgeryen
dc.description.fundingNo fundingen
dc.description.provinceLeinsteren
dc.description.peer-reviewpeer-reviewen
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