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Press-Fit Placement of a Rectangular Block Implant in the Resorbed Alveolar Ridge: Surgical and Biomechanical Considerations

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Title: Press-Fit Placement of a Rectangular Block Implant in the Resorbed Alveolar Ridge: Surgical and Biomechanical Considerations
Authors: Efthimios Gazelakis, Roy B. Judge, Joseph E. A. Palamara, Shiva Subramanian, Mohsin Nazir
Source: Bioengineering, Vol 11, Iss 6, p 532 (2024)
Publisher Information: MDPI AG
Publication Year: 2024
Collection: Directory of Open Access Journals: DOAJ Articles
Subject Terms: rectangular block implant, rectangular osteotomy, primary retention, placement load, osseo-integration, stress concentration, Technology, Biology (General), QH301-705.5
Description: Rectangular Block Implant (RBIs) were manufactured, using computer-aided-design lathe turning, surface roughened with grit blasting and gamma irradiated. Implants were surgically placed into the resorbed edentulous mandibular ridges of both greyhound dogs (ex vivo and in vivo) and humans; the pooled total was 17 placements. The aim was to achieve mechanical stability and full implant submergence without damage to the mandibular canal and without bone fracture: fulfilment of all of these criteria was deemed to be a successful surgical outcome. Rectangular osteotomy sites were prepared with piezo surgical instrumentation. Sixteen implants were fully submerged and achieved good primary stability without bone fracture and without evidence of impingement of the mandibular canal. One implant placement was deemed a failure due to bone fracture: the event of a random successful outcome was rejected ( p < 0.01 confidence, binomial analysis). Technique of placement yielded excellent mechanical retention: key biomechanical factors that emerged in this process included under preparation of the osteotomy site with the use of specifically designed trial-fit gauges, the viscoelastic property of the peri-implant bone, the flat faces and cornered edges of the block surfaces which enhance stress distribution and mechanical retention, respectively. It was concluded that the surgical protocol for the RBI placement in the resorbed alveolus is a predictable clinical procedure tailored to its specific, unique biomechanical profile.
Document Type: article in journal/newspaper
Language: English
Relation: https://www.mdpi.com/2306-5354/11/6/532; https://doaj.org/toc/2306-5354; https://doaj.org/article/97cde6c65c99411a85e67574a59b83a6
DOI: 10.3390/bioengineering11060532
Availability: https://doi.org/10.3390/bioengineering11060532
https://doaj.org/article/97cde6c65c99411a85e67574a59b83a6
Accession Number: edsbas.42623DBC
Database: BASE
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  Data: Press-Fit Placement of a Rectangular Block Implant in the Resorbed Alveolar Ridge: Surgical and Biomechanical Considerations
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Efthimios+Gazelakis%22&quot;&gt;Efthimios Gazelakis&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Roy+B%2E+Judge%22&quot;&gt;Roy B. Judge&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Joseph+E%2E+A%2E+Palamara%22&quot;&gt;Joseph E. A. Palamara&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Shiva+Subramanian%22&quot;&gt;Shiva Subramanian&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Mohsin+Nazir%22&quot;&gt;Mohsin Nazir&lt;/searchLink&gt;
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  Data: Bioengineering, Vol 11, Iss 6, p 532 (2024)
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  Data: 2024
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  Label: Description
  Group: Ab
  Data: Rectangular Block Implant (RBIs) were manufactured, using computer-aided-design lathe turning, surface roughened with grit blasting and gamma irradiated. Implants were surgically placed into the resorbed edentulous mandibular ridges of both greyhound dogs (ex vivo and in vivo) and humans; the pooled total was 17 placements. The aim was to achieve mechanical stability and full implant submergence without damage to the mandibular canal and without bone fracture: fulfilment of all of these criteria was deemed to be a successful surgical outcome. Rectangular osteotomy sites were prepared with piezo surgical instrumentation. Sixteen implants were fully submerged and achieved good primary stability without bone fracture and without evidence of impingement of the mandibular canal. One implant placement was deemed a failure due to bone fracture: the event of a random successful outcome was rejected ( p &lt; 0.01 confidence, binomial analysis). Technique of placement yielded excellent mechanical retention: key biomechanical factors that emerged in this process included under preparation of the osteotomy site with the use of specifically designed trial-fit gauges, the viscoelastic property of the peri-implant bone, the flat faces and cornered edges of the block surfaces which enhance stress distribution and mechanical retention, respectively. It was concluded that the surgical protocol for the RBI placement in the resorbed alveolus is a predictable clinical procedure tailored to its specific, unique biomechanical profile.
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  Data: 10.3390/bioengineering11060532
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  Data: https://doi.org/10.3390/bioengineering11060532&lt;br /&gt;https://doaj.org/article/97cde6c65c99411a85e67574a59b83a6
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      – Type: doi
        Value: 10.3390/bioengineering11060532
    Languages:
      – Text: English
    Subjects:
      – SubjectFull: rectangular block implant
        Type: general
      – SubjectFull: rectangular osteotomy
        Type: general
      – SubjectFull: primary retention
        Type: general
      – SubjectFull: placement load
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      – SubjectFull: osseo-integration
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      – SubjectFull: stress concentration
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      – SubjectFull: Biology (General)
        Type: general
      – SubjectFull: QH301-705.5
        Type: general
    Titles:
      – TitleFull: Press-Fit Placement of a Rectangular Block Implant in the Resorbed Alveolar Ridge: Surgical and Biomechanical Considerations
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            NameFull: Efthimios Gazelakis
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            NameFull: Shiva Subramanian
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            NameFull: Mohsin Nazir
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              Y: 2024
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            – TitleFull: Bioengineering, Vol 11, Iss 6, p 532 (2024
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