A biomechanical effect of wide implant placement and offset placement of three implants in the posterior partially edentulous region.
Identifieur interne : 008C91 ( Main/Exploration ); précédent : 008C90; suivant : 008C92A biomechanical effect of wide implant placement and offset placement of three implants in the posterior partially edentulous region.
Auteurs : Y. Sato [Japon] ; N. Shindoi ; R. Hosokawa ; K. Tsuga ; Y. AkagawaSource :
- Journal of oral rehabilitation [ 0305-182X ] ; 2000.
Descripteurs français
- KwdFr :
- Alliages d'or, Analyse des éléments finis (), Analyse du stress dentaire (), Conception de prothèse dentaire (), Humains, Mandibule, Molaire, Mâchoire partiellement édentée (physiopathologie), Mâchoire partiellement édentée (rééducation et réadaptation), Phénomènes biomécaniques, Piliers dentaires (), Pose d'implant dentaire endo-osseux (), Pose d'implant dentaire endo-osseux (instrumentation), Prémolaire, Rétention de prothèse dentaire (), Rétention de prothèse dentaire (instrumentation).
- MESH :
- physiopathologie : Mâchoire partiellement édentée.
- rééducation et réadaptation : Mâchoire partiellement édentée.
- Alliages d'or, Analyse des éléments finis, Analyse du stress dentaire, Conception de prothèse dentaire, Humains, Mandibule, Molaire, Phénomènes biomécaniques, Piliers dentaires, Pose d'implant dentaire endo-osseux, Prémolaire, Rétention de prothèse dentaire.
English descriptors
- KwdEn :
- Bicuspid, Biomechanical Phenomena, Dental Abutments (statistics & numerical data), Dental Implantation, Endosseous (instrumentation), Dental Implantation, Endosseous (methods), Dental Implantation, Endosseous (statistics & numerical data), Dental Prosthesis Design (methods), Dental Prosthesis Design (statistics & numerical data), Dental Prosthesis Retention (instrumentation), Dental Prosthesis Retention (methods), Dental Prosthesis Retention (statistics & numerical data), Dental Stress Analysis (methods), Dental Stress Analysis (statistics & numerical data), Finite Element Analysis (statistics & numerical data), Gold Alloys, Humans, Jaw, Edentulous, Partially (physiopathology), Jaw, Edentulous, Partially (rehabilitation), Mandible, Molar.
- MESH :
- chemical : Gold Alloys.
- instrumentation : Dental Implantation, Endosseous, Dental Prosthesis Retention.
- methods : Dental Implantation, Endosseous, Dental Prosthesis Design, Dental Prosthesis Retention, Dental Stress Analysis.
- physiopathology : Jaw, Edentulous, Partially.
- rehabilitation : Jaw, Edentulous, Partially.
- statistics & numerical data : Dental Abutments, Dental Implantation, Endosseous, Dental Prosthesis Design, Dental Prosthesis Retention, Dental Stress Analysis, Finite Element Analysis.
- Bicuspid, Biomechanical Phenomena, Humans, Mandible, Molar.
Abstract
To prevent loosening or fracture of screws retaining the prosthesis to the implants in the posterior partially edentulous region, the use of staggered buccal and lingual offset placement or wide implants is suggested. However, it is not known how this usage compensates for the torque produced by lateral occlusal forces. This study evaluated the effectiveness of offset placement of three implants and a wide implant placement at the most posterior site. Three-dimensional geometric analysis was used to calculate the tensile force applied to gold screws in clinical situations with buccal or lingual loading perpendicular to cuspal inclination (10 or 20 degrees ). Four variations of the placement of three implants (3.75 mm) are: (1) straight; (2) buccal offset of the second implant; (3) lingual offset of the second implant; (4) a wide implant (5 mm) placement at most posterior site. The offset placement did not always decrease tensile force at the gold screw, but wide implant placement and decrease in cuspal inclination did.
PubMed: 10632839
Affiliations:
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Sato</name><affiliation wicri:level="1"><nlm:affiliation>Department of Removable Prosthodontics, Hiroshima University School of Dentistry, Hiroshima, Japan. sato@ipc.hiroshima-u.ac.jp</nlm:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Removable Prosthodontics, Hiroshima University School of Dentistry, Hiroshima</wicri:regionArea><wicri:noRegion>Hiroshima</wicri:noRegion></affiliation></author><author><name sortKey="Shindoi, N" sort="Shindoi, N" uniqKey="Shindoi N" first="N" last="Shindoi">N. Shindoi</name></author><author><name sortKey="Hosokawa, R" sort="Hosokawa, R" uniqKey="Hosokawa R" first="R" last="Hosokawa">R. Hosokawa</name></author><author><name sortKey="Tsuga, K" sort="Tsuga, K" uniqKey="Tsuga K" first="K" last="Tsuga">K. Tsuga</name></author><author><name sortKey="Akagawa, Y" sort="Akagawa, Y" uniqKey="Akagawa Y" first="Y" last="Akagawa">Y. 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However, it is not known how this usage compensates for the torque produced by lateral occlusal forces. This study evaluated the effectiveness of offset placement of three implants and a wide implant placement at the most posterior site. Three-dimensional geometric analysis was used to calculate the tensile force applied to gold screws in clinical situations with buccal or lingual loading perpendicular to cuspal inclination (10 or 20 degrees ). Four variations of the placement of three implants (3.75 mm) are: (1) straight; (2) buccal offset of the second implant; (3) lingual offset of the second implant; (4) a wide implant (5 mm) placement at most posterior site. The offset placement did not always decrease tensile force at the gold screw, but wide implant placement and decrease in cuspal inclination did.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><noCountry><name sortKey="Akagawa, Y" sort="Akagawa, Y" uniqKey="Akagawa Y" first="Y" last="Akagawa">Y. Akagawa</name><name sortKey="Hosokawa, R" sort="Hosokawa, R" uniqKey="Hosokawa R" first="R" last="Hosokawa">R. Hosokawa</name><name sortKey="Shindoi, N" sort="Shindoi, N" uniqKey="Shindoi N" first="N" last="Shindoi">N. Shindoi</name><name sortKey="Tsuga, K" sort="Tsuga, K" uniqKey="Tsuga K" first="K" last="Tsuga">K. Tsuga</name></noCountry><country name="Japon"><noRegion><name sortKey="Sato, Y" sort="Sato, Y" uniqKey="Sato Y" first="Y" last="Sato">Y. Sato</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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