{"id":14463,"date":"2026-11-13T11:58:03","date_gmt":"2026-11-13T10:58:03","guid":{"rendered":"https:\/\/eacim-ceramic-implantology.com\/effets-du-materiau-de-restauration-sur-les-performances-mecaniques-des-protheses-dentaires-fixes-implantaires-a-trois-elements-avec-extensions-bilaterales-une-etude-in-vitro\/"},"modified":"2026-11-13T11:58:03","modified_gmt":"2026-11-13T10:58:03","slug":"effets-du-materiau-de-restauration-sur-les-performances-mecaniques-des-protheses-dentaires-fixes-implantaires-a-trois-elements-avec-extensions-bilaterales-une-etude-in-vitro","status":"publish","type":"post","link":"https:\/\/eacim-ceramic-implantology.com\/fr\/effets-du-materiau-de-restauration-sur-les-performances-mecaniques-des-protheses-dentaires-fixes-implantaires-a-trois-elements-avec-extensions-bilaterales-une-etude-in-vitro\/","title":{"rendered":"Effets du mat\u00e9riau de restauration sur les performances m\u00e9caniques des proth\u00e8ses dentaires fixes implantaires \u00e0 trois \u00e9l\u00e9ments avec extensions bilat\u00e9rales : une \u00e9tude in vitro"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1144px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><div id=\"eng-abstract\" class=\"abstract-content selected\">\n<h1 class=\"heading-title\"><span dir=\"auto\">Effets du mat\u00e9riau de restauration sur les performances m\u00e9caniques des proth\u00e8ses dentaires fixes implantaires \u00e0 trois \u00e9l\u00e9ments avec extensions bilat\u00e9rales\u00a0: une \u00e9tude in vitro<\/span><\/h1>\n<div id=\"abstract\" class=\"abstract\">\n<h2 class=\"title\">R\u00e9sum\u00e9<\/h2>\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<p><span dir=\"auto\">Cette \u00e9tude visait \u00e0 \u00e9valuer et comparer la charge et le mode de fracture de proth\u00e8ses dentaires fixes implantaires (PDF) \u00e0 trois unit\u00e9s, fabriqu\u00e9es en poly\u00e9ther\u00e9therc\u00e9tone (PEEK), en composite et en zircone, selon deux configurations proth\u00e9tiques\u00a0: un pont en T bilat\u00e9ral reposant sur un implant central unique et un pont en C conventionnel reposant sur deux implants. Dans cette \u00e9tude pr\u00e9clinique in vitro, des analogues d\u2019implants Straumann au niveau tissulaire ont \u00e9t\u00e9 inclus dans de la r\u00e9sine Paladur et \u00e9quip\u00e9s de piliers SN Variobase\u00ae <\/span><sup><span dir=\"auto\">.<\/span><\/sup><span dir=\"auto\"> Cinq mat\u00e9riaux de restauration, un polym\u00e8re \u00e0 base de PMMA, un composite de r\u00e9sine, du PEEK, de la zircone stabilis\u00e9e \u00e0 l\u2019yttrium \u00e0 5\u00a0% molaire (5Y-TZP) et de la zircone stabilis\u00e9e \u00e0 l\u2019yttrium \u00e0 3\u00a0% molaire (3Y-TZP), ont \u00e9t\u00e9 utilis\u00e9s pour fabriquer des PDF standardis\u00e9es. Les \u00e9chantillons ont \u00e9t\u00e9 scell\u00e9s et soumis \u00e0 une charge verticale jusqu\u2019\u00e0 rupture \u00e0 l\u2019aide d\u2019une machine d\u2019essai universelle. La charge et le mode de fracture, ainsi que la d\u00e9formation des piliers, ont \u00e9t\u00e9 enregistr\u00e9s et analys\u00e9s. Le 3Y-TZP a pr\u00e9sent\u00e9 la charge de fracture m\u00e9diane la plus \u00e9lev\u00e9e (pont en T\u00a0: 5108\u00a0N [IQR\u00a0: 1415]\u00a0; pont en C\u00a0: 6572\u00a0N [IQR\u00a0: 2438]). Les ponts en C ont syst\u00e9matiquement d\u00e9montr\u00e9 une r\u00e9sistance \u00e0 la fracture significativement sup\u00e9rieure \u00e0 celle des ponts en T. Le PEEK n\u2019a pr\u00e9sent\u00e9 aucune fracture visible et une d\u00e9formation minimale, indiquant un comportement m\u00e9canique distinct. Des diff\u00e9rences significatives dans les modes de fracture ont \u00e9t\u00e9 observ\u00e9es selon les mat\u00e9riaux, la zircone et le PEEK pr\u00e9sentant les performances les plus favorables. La zircone 3Y-TZP offre la plus haute r\u00e9sistance \u00e0 la fracture. Bien que les ponts en C aient d\u00e9montr\u00e9 des performances m\u00e9caniques sup\u00e9rieures, les ponts en T, r\u00e9alis\u00e9s avec des mat\u00e9riaux appropri\u00e9s tels que le PEEK ou le 3Y-TZP, pr\u00e9sentent une r\u00e9sistance cliniquement acceptable. L\u2019absence de fatigue et de vieillissement \u00e0 long terme limite l\u2019extrapolation clinique directe. Les configurations de ponts en T peuvent constituer une alternative moins invasive lorsque les ponts en C ne sont pas envisageables, \u00e0 condition de s\u00e9lectionner des mat\u00e9riaux haute performance. Une validation plus pouss\u00e9e par des \u00e9tudes cliniques et \u00e0 long terme est recommand\u00e9e.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><div ><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/41087643\/\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">LIRE L&rsquo;ARTICLE<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":14460,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"footnotes":""},"categories":[63],"tags":[899,684,900,898],"class_list":["post-14463","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaute","tag-analyse-des-contraintes-dentaires","tag-oxide-zirconium","tag-polyetherethercetone-peek","tag-pont-en-porte-a-faux"],"yoast_head":"<!-- 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