{"id":2469,"date":"2026-01-29T17:19:28","date_gmt":"2026-01-29T14:19:28","guid":{"rendered":"https:\/\/wiki.dev.voka.io\/glossary\/plaque-dentaire\/"},"modified":"2026-03-03T10:31:55","modified_gmt":"2026-03-03T07:31:55","slug":"plaque-dentaire","status":"publish","type":"glossary_item","link":"https:\/\/wiki.dev.voka.io\/fr\/glossaire\/plaque-dentaire\/","title":{"rendered":"D\u00e9p\u00f4t dentaire"},"content":{"rendered":"\n<p>Le d\u00e9p\u00f4t dentaire (du latin <em>placa dentalis<\/em>) est un d\u00e9p\u00f4t mou, collant et non-min\u00e9ralis\u00e9 qui adh\u00e8re fermement \u00e0 la surface de la dent. Il repr\u00e9sente une colonie complexe, organis\u00e9e et multi-esp\u00e8ces de micro-organismes int\u00e9gr\u00e9e dans une matrice polysaccharidique protectrice. <\/p>\n\n<p>Le d\u00e9p\u00f4t dentaire est le facteur \u00e9tiologique principal dans le d\u00e9veloppement des caries et des maladies parodontales.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x44D;&#x442;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;-&#x438;-&#x43F;&#x430;&#x442;&#x43E;&#x444;&#x438;&#x437;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;\"><strong>\u00c9tiologie et physiopathologie<\/strong><\/h2>\n\n<p>Les bact\u00e9ries pr\u00e9sentes dans la plaque, principalement le <em>Streptococcus mutans<\/em>, m\u00e9tabolisent les glucides alimentaires en acides organiques. Ces acides sont retenus par le biofilm directement \u00e0 la surface de l&rsquo;\u00e9mail, provoquant sa dissolution chimique prolong\u00e9e. Le processus de formation de la plaque commence quelques minutes apr\u00e8s le nettoyage des dents et \u00e9volue \u00e0 travers les \u00e9tapes de formation de la pellicule, d&rsquo;adh\u00e9sion bact\u00e9rienne et de maturation du biofilm.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x43A;&#x43B;&#x438;&#x43D;&#x438;&#x447;&#x435;&#x441;&#x43A;&#x43E;&#x435;-&#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x435;\"><strong>Importance clinique<\/strong><\/h2>\n\n<p>Le film ne peut \u00eatre \u00e9limin\u00e9 par l&rsquo;eau et n\u00e9cessite un retrait m\u00e9canique \u00e0 l&rsquo;aide d&rsquo;une brosse \u00e0 dents et de fil ou de brosses interdentaires. En l&rsquo;absence d&rsquo;une hygi\u00e8ne r\u00e9guli\u00e8re, les min\u00e9raux de la salive provoquent la min\u00e9ralisation du d\u00e9p\u00f4t mou qui devient du tartre dentaire. La pr\u00e9sence constante du biofilm maintient un environnement acide, ce qui entra\u00eene la dissolution des min\u00e9raux de l&rsquo;\u00e9mail et la formation de l\u00e9sions carieuses.<\/p>\n\n<p>Une fois qu&rsquo;elles atteignent la dentine, en plus de continuer la production acide, les bact\u00e9ries du biofilm commencent \u00e9galement \u00e0 lib\u00e9rer des enzymes prot\u00e9olytiques. Le processus entra\u00eene la d\u00e9gradation de la composante organique de la dentine, le collag\u00e8ne. Les toxines lib\u00e9r\u00e9es par les bact\u00e9ries provoquent une inflammation des gencives et la destruction du ligament parodontal.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le d\u00e9p\u00f4t dentaire (du latin <em>placa dentalis<\/em>) est un d\u00e9p\u00f4t mou, collant et non-min\u00e9ralis\u00e9 qui adh\u00e8re fermement \u00e0 la surface de la dent. Il repr\u00e9sente une colonie complexe, organis\u00e9e et multi-esp\u00e8ces de micro-organismes int\u00e9gr\u00e9e dans une matrice polysaccharidique protectrice.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-2469","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>D\u00e9p\u00f4t dentaire : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"Le d\u00e9p\u00f4t dentaire (du latin placa dentalis) est un d\u00e9p\u00f4t mou, collant et non-min\u00e9ralis\u00e9 qui adh\u00e8re fermement \u00e0 la surface de la dent. 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