{"id":642,"date":"2025-04-03T12:05:33","date_gmt":"2025-04-03T09:05:33","guid":{"rendered":"https:\/\/wiki.voka.io\/diseases\/uncategorized\/kyste-periapical\/"},"modified":"2026-10-21T09:52:43","modified_gmt":"2026-10-21T06:52:43","slug":"kyste-periapical","status":"publish","type":"diseases_post","link":"https:\/\/wiki.voka.io\/fr\/maladies\/odontologie\/kyste-periapical\/","title":{"rendered":"Kyste p\u00e9riapical : \u00e9tiologie, anatomie, manifestations cliniques et traitement"},"content":{"rendered":"<p><?xml encoding=\"UTF-8\" ?><\/p>\n<p class=\"wp-block-paragraph\">Le kyste p\u00e9riapical est une cavit\u00e9 pathologique au niveau de l\u2019apex de la racine dentaire, contenant du liquide et tapiss\u00e9e d\u2019\u00e9pith\u00e9lium pavimenteux stratifi\u00e9 non k\u00e9ratinis\u00e9.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dentistry\/periapical-cyst\/periapical-cyst-distal-root-lower-molar.webp\" alt=\"Kyste p\u00e9riapical au niveau de la racine distale d'une molaire mandibulaire\"><figcaption class=\"wp-element-caption\">Kyste p\u00e9riapical au niveau de la racine distale d\u2019une molaire mandibulaire\u00a0\u2013 <a href=\"https:\/\/catalog.voka.io\/models\/3ed27118-f048-4865-b4ec-042c2caa7e2f\/127b9074-8c2d-4943-87a6-2ea48774cc23\/a2afdeb7-ecff-48bc-a3ed-bbc50ec85789\/4cde2c93-d50e-4283-812b-d16e9fef236b\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">mod\u00e8le\u00a03D<\/a><\/figcaption><\/figure>\n<h2 id=\"etiologie\" class=\"wp-block-heading\">\u00c9tiologie<\/h2>\n<p class=\"wp-block-paragraph\">L\u2019apparition d\u2019un kyste p\u00e9riapical est due \u00e0 une infection microbienne dans le syst\u00e8me canalaire de la dent. Les principales cellules impliqu\u00e9es dans la formation des l\u00e9sions de ce type sont des cellules inflammatoires chroniques, ainsi que des cellules \u00e9pith\u00e9liales de Malassez (d\u00e9bris de la gaine \u00e9pith\u00e9liale de Hertwig d\u2019une dent en d\u00e9veloppement). Ces cellules \u00e9pith\u00e9liales peuvent \u00eatre consid\u00e9r\u00e9es comme des cellules souches unipotentes. <\/p>\n<p class=\"wp-block-paragraph\">Au cours d\u2019une r\u00e9action inflammatoire, des facteurs de croissance et des cytokines sont lib\u00e9r\u00e9s dans les tissus entourant l\u2019apex de la racine, ce qui entra\u00eene la prolif\u00e9ration des cellules \u00e9pith\u00e9liales de Malassez. <\/p>\n<p class=\"wp-block-paragraph\">Il existe plusieurs th\u00e9ories sur la formation des kystes apicaux.<\/p>\n<h3 id=\"theorie-de-la-carence-en-nutriments\" class=\"wp-block-heading\">Th\u00e9orie de la carence en nutriments<\/h3>\n<p class=\"wp-block-paragraph\">Au cours de la croissance des \u00eelots \u00e9pith\u00e9liaux, les cellules centrales s\u2019\u00e9loignent de la source de nutriments et subissent une n\u00e9crose. Les produits de d\u00e9gradation tissulaire attirent les granulocytes et les neutrophiles dans la zone de n\u00e9crose avec la formation de microcavit\u00e9s.<\/p>\n<h3 id=\"theorie-de-l-abces\" class=\"wp-block-heading\">Th\u00e9orie de l\u2019abc\u00e8s<\/h3>\n<p class=\"wp-block-paragraph\">Lorsqu\u2019un abc\u00e8s se forme dans le tissu conjonctif, les cellules \u00e9pith\u00e9liales prolif\u00e8rent et tapissent la cavit\u00e9 de l\u2019abc\u00e8s en raison de leur tendance \u00e0 couvrir les zones expos\u00e9es du tissu conjonctif.<\/p>\n<h3 id=\"theorie-de-la-fusion-des-brins-epitheliaux-hyperplasie-inflammatoire\" class=\"wp-block-heading\">Th\u00e9orie de la fusion des brins \u00e9pith\u00e9liaux (hyperplasie inflammatoire)<\/h3>\n<p class=\"wp-block-paragraph\">Les brins \u00e9pith\u00e9liaux fusionnent pour former une structure globulaire tridimensionnelle de tissu conjonctif fibrovasculaire contenant des cellules inflammatoires. Le liquide kystique provient du r\u00e9seau capillaire du granulome par transsudation et exsudation de la partie liquide du sang et par suite de la d\u00e9gradation des \u00e9l\u00e9ments figur\u00e9s.<\/p>\n<p class=\"wp-block-paragraph\">Les cellules \u00e9pith\u00e9liales qui tapissent la cavit\u00e9 kystique sont incapables de prolif\u00e9rer d\u2019elles-m\u00eames sans \u00eatre stimul\u00e9es par les cytokines et les facteurs de croissance.<\/p>\n<p class=\"wp-block-paragraph\">La taille des kystes peut augmenter lentement avec le temps. Cela s\u2019explique probablement par la d\u00e9gradation de la capsule fibreuse de tissu conjonctif et l\u2019influence des m\u00e9talloprot\u00e9inases matricielles, ainsi que par la r\u00e9sorption de l\u2019os environnant. Les m\u00e9diateurs inflammatoires et les cytokines stimulent la prolif\u00e9ration des cellules \u00e9pith\u00e9liales et favorisent la r\u00e9sorption osseuse dans les foyers de p\u00e9riodontite apicale. Les cellules \u00e9pith\u00e9liales de Malassez peuvent \u00e9galement s\u00e9cr\u00e9ter des facteurs de r\u00e9sorption osseuse. <\/p>\n<p class=\"wp-block-paragraph\">En affectant les structures environnantes, le kyste peut \u00e9carter les racines des dents voisines, provoquer une r\u00e9sorption externe des racines dentaires, repousser et d\u00e9former la paroi du sinus maxillaire, ou bien la d\u00e9truire et p\u00e9n\u00e9trer directement dans le sinus. En l\u2019absence de traitement, les kystes p\u00e9riapicaux sont capables de d\u00e9truire une partie importante du tissu osseux adjacent. Dans ce cas, le processus peut s\u2019\u00e9tendre au corps et \u00e0 la branche de la mandibule, entra\u00eenant une fracture pathologique de la mandibule. De plus, un abc\u00e8s du kyste peut se produire avec le temps.<\/p>\n<h2 id=\"classification\" class=\"wp-block-heading\">Classification<\/h2>\n<ul class=\"wp-block-list\">\n<li>Kyste p\u00e9riapical vrai : la lumi\u00e8re est compl\u00e8tement ferm\u00e9e par le rev\u00eatement \u00e9pith\u00e9lial et n\u2019a aucune communication avec le canal radiculaire. <\/li>\n<li>Kyste sacculaire (ou congestif)\u00a0: sa lumi\u00e8re communique avec le canal radiculaire de la dent causale.<\/li>\n<\/ul>\n<div class=\"videos-carousel-block\">\n<div class=\"swiper video-carousel-swiper video-carousel-swiper-block_6ade33ee7b92b\">\n<div class=\"swiper-wrapper\">\n<div class=\"swiper-slide\"><video controls class=\"carousel-video\"><source data-src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/fr\/dentistry\/periapical-cyst\/true-periapical-cyst-pathology.webm\" type=\"video\/webm\"><\/source><\/video><span class=\"small-text-article text-main-text-color\">Animation 3D\u00a0: kyste p\u00e9riapical vrai<\/span><\/div>\n<div class=\"swiper-slide\"><video controls class=\"carousel-video\"><source data-src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/fr\/dentistry\/periapical-cyst\/periapical-pocket-cyst.webm\" type=\"video\/webm\"><\/source><\/video><span class=\"small-text-article text-main-text-color\">Animation 3D\u00a0: kyste p\u00e9riapical congestif<\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"swiper-article-video-carousel__controls\">\n<div class=\"swiper-article-video-carousel__pagination-container swiper-article-video-carousel__pagination-container-block_6ade33ee7b92b\"><\/div>\n<div class=\"swiper-article-video-carousel__arrows\"><button class=\"swiper__arrow swiper__arrow--prev video-carousel-swiper-button-prev swiper__arrow swiper__arrow--prev video-carousel-swiper-button-prev-block_6ade33ee7b92b\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"40\" viewbox=\"0 0 40 40\" fill=\"none\"><path d=\"M20 3.75C16.7861 3.75 13.6443 4.70305 10.972 6.48862C8.29969 8.27419 6.21689 10.8121 4.98696 13.7814C3.75704 16.7507 3.43524 20.018 4.06225 23.1702C4.68926 26.3224 6.23692 29.2179 8.50952 31.4905C10.7821 33.7631 13.6776 35.3107 16.8298 35.9378C19.982 36.5648 23.2493 36.243 26.2186 35.013C29.1879 33.7831 31.7258 31.7003 33.5114 29.028C35.297 26.3557 36.25 23.2139 36.25 20C36.2455 15.6916 34.5319 11.561 31.4855 8.51454C28.439 5.46806 24.3084 3.75455 20 3.75ZM23.3844 25.3656C23.5005 25.4818 23.5926 25.6196 23.6555 25.7714C23.7184 25.9231 23.7507 26.0858 23.7507 26.25C23.7507 26.4142 23.7184 26.5769 23.6555 26.7286C23.5926 26.8804 23.5005 27.0182 23.3844 27.1344C23.2682 27.2505 23.1304 27.3426 22.9786 27.4055C22.8269 27.4683 22.6643 27.5007 22.5 27.5007C22.3358 27.5007 22.1731 27.4683 22.0214 27.4055C21.8696 27.3426 21.7318 27.2505 21.6156 27.1344L15.3656 20.8844C15.2494 20.7683 15.1572 20.6304 15.0943 20.4787C15.0314 20.3269 14.999 20.1643 14.999 20C14.999 19.8357 15.0314 19.6731 15.0943 19.5213C15.1572 19.3696 15.2494 19.2317 15.3656 19.1156L21.6156 12.8656C21.7318 12.7495 21.8696 12.6574 22.0214 12.5945C22.1731 12.5317 22.3358 12.4993 22.5 12.4993C22.6643 12.4993 22.8269 12.5317 22.9786 12.5945C23.1304 12.6574 23.2682 12.7495 23.3844 12.8656C23.5005 12.9818 23.5926 13.1196 23.6555 13.2714C23.7184 13.4231 23.7507 13.5858 23.7507 13.75C23.7507 13.9142 23.7184 14.0769 23.6555 14.2286C23.5926 14.3804 23.5005 14.5182 23.3844 14.6344L18.0172 20L23.3844 25.3656Z\" fill=\"#B5C0CD\"><\/path><\/svg><\/button><button class=\"swiper__arrow swiper__arrow--next video-carousel-swiper-button-next swiper__arrow swiper__arrow--next video-carousel-swiper-button-next-block_6ade33ee7b92b\" tabindex=\"0\" aria-label=\"Next slide\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"40\" viewbox=\"0 0 40 40\" fill=\"none\"><path d=\"M20 3.75C16.7861 3.75 13.6443 4.70305 10.972 6.48862C8.29969 8.27419 6.21689 10.8121 4.98696 13.7814C3.75704 16.7507 3.43524 20.018 4.06225 23.1702C4.68926 26.3224 6.23692 29.2179 8.50952 31.4905C10.7821 33.7631 13.6776 35.3107 16.8298 35.9378C19.982 36.5648 23.2493 36.243 26.2186 35.013C29.1879 33.7831 31.7258 31.7003 33.5114 29.028C35.297 26.3557 36.25 23.2139 36.25 20C36.2455 15.6916 34.5319 11.561 31.4855 8.51454C28.439 5.46806 24.3084 3.75455 20 3.75ZM23.3844 25.3656C23.5005 25.4818 23.5926 25.6196 23.6555 25.7714C23.7184 25.9231 23.7507 26.0858 23.7507 26.25C23.7507 26.4142 23.7184 26.5769 23.6555 26.7286C23.5926 26.8804 23.5005 27.0182 23.3844 27.1344C23.2682 27.2505 23.1304 27.3426 22.9786 27.4055C22.8269 27.4683 22.6643 27.5007 22.5 27.5007C22.3358 27.5007 22.1731 27.4683 22.0214 27.4055C21.8696 27.3426 21.7318 27.2505 21.6156 27.1344L15.3656 20.8844C15.2494 20.7683 15.1572 20.6304 15.0943 20.4787C15.0314 20.3269 14.999 20.1643 14.999 20C14.999 19.8357 15.0314 19.6731 15.0943 19.5213C15.1572 19.3696 15.2494 19.2317 15.3656 19.1156L21.6156 12.8656C21.7318 12.7495 21.8696 12.6574 22.0214 12.5945C22.1731 12.5317 22.3358 12.4993 22.5 12.4993C22.6643 12.4993 22.8269 12.5317 22.9786 12.5945C23.1304 12.6574 23.2682 12.7495 23.3844 12.8656C23.5005 12.9818 23.5926 13.1196 23.6555 13.2714C23.7184 13.4231 23.7507 13.5858 23.7507 13.75C23.7507 13.9142 23.7184 14.0769 23.6555 14.2286C23.5926 14.3804 23.5005 14.5182 23.3844 14.6344L18.0172 20L23.3844 25.3656Z\" fill=\"#B5C0CD\"><\/path><\/svg><\/button><\/div>\n<\/div>\n<\/div>\n<p><script defer>\n    document.addEventListener('DOMContentLoaded', function() {\n        const videosCarouselSwiper = new Swiper('.video-carousel-swiper-block_6ade33ee7b92b', {\n            slidesPerView: 1,\n            spaceBetween: 20,\n            loop: true,\n            pagination: {\n                el: '.swiper-article-video-carousel__pagination-container-block_6ade33ee7b92b',\n                clickable: true,\n            },\n            navigation: {\n                nextEl: '.video-carousel-swiper-button-next-block_6ade33ee7b92b',\n                prevEl: '.video-carousel-swiper-button-prev-block_6ade33ee7b92b',\n            },\n            on: {\n                slideChangeTransitionStart: function () {\n                    const videos = this.el.querySelectorAll('video');\n                    videos.forEach(video => {\n                        if (!video.paused) {\n                            video.pause();\n                            video.currentTime = 0;\n                        }\n                    });\n                },\n            }\n        })\n    })\n<\/script><\/p>\n<h2 id=\"anatomie\" class=\"wp-block-heading\">Anatomie<\/h2>\n<p class=\"wp-block-paragraph\">La dent atteinte peut pr\u00e9senter :<\/p>\n<ul class=\"wp-block-list\">\n<li>une l\u00e9sion carieuse profonde affectant la pulpe dentaire ;<\/li>\n<li>une restauration dentaire d\u00e9fectueuse adjacente au tissu pulpaire ;<\/li>\n<li>des signes de traumatisme (fissures, \u00e9clatement de la dentine, exposition partielle de la pulpe).<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">La pulpe est n\u00e9cros\u00e9e, de couleur gris-jaun\u00e2tre ou gris-noir. Dans la zone p\u00e9riapicale, on observe un foyer de destruction du ligament p\u00e9riodontal et du tissu osseux. Le kyste p\u00e9riapical est de forme ronde ou ovale. Situ\u00e9 au niveau de l\u2019apex de la racine dentaire, il comprend les \u00e9l\u00e9ments suivants :<\/p>\n<ul class=\"wp-block-list\">\n<li>Capsule de tissu conjonctif : contient tous les \u00e9l\u00e9ments cellulaires pr\u00e9sents dans les granulomes apicaux.<\/li>\n<li>Rev\u00eatement \u00e9pith\u00e9lial : \u00e9pith\u00e9lium pavimenteux stratifi\u00e9 non k\u00e9ratinis\u00e9 hyperplasique. Il peut \u00eatre continu, discontinu ou compl\u00e8tement absent dans certaines zones. Parfois, le rev\u00eatement est repr\u00e9sent\u00e9 par l\u2019\u00e9pith\u00e9lium cili\u00e9. L\u2019\u00e9pith\u00e9lium de rev\u00eatement et la capsule sont g\u00e9n\u00e9ralement infiltr\u00e9s de cellules inflammatoires.<\/li>\n<li>Cavit\u00e9 (lumi\u00e8re) kystique, remplie d\u2019un liquide opalescent de couleur paille qui peut contenir un exsudat inflammatoire, des cristaux de cholest\u00e9rol, des cellules \u00e9pith\u00e9liales mortes, des d\u00e9bris de tissu osseux r\u00e9sorb\u00e9 ou des colonies bact\u00e9riennes. <\/li>\n<\/ul>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dentistry\/periapical-cyst\/true-periapical-cyst-anatomy-sagittal-section.webp\" alt=\"Anatomie d'un kyste p\u00e9riapical vrai&#160;: coupe sagittale\"><figcaption class=\"wp-element-caption\">Anatomie d\u2019un kyste p\u00e9riapical vrai : coupe sagittale\u00a0\u2013 <a href=\"https:\/\/catalog.voka.io\/models\/3ed27118-f048-4865-b4ec-042c2caa7e2f\/127b9074-8c2d-4943-87a6-2ea48774cc23\/a2afdeb7-ecff-48bc-a3ed-bbc50ec85789\/4cde2c93-d50e-4283-812b-d16e9fef236b\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">mod\u00e8le\u00a03D<\/a><\/figcaption><\/figure>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dentistry\/periapical-cyst\/periapical-pocket-cyst-anatomy-sagittal-section.webp\" alt=\"Anatomie d'un kyste p\u00e9riapical congestif (sacculaire)&#160;: coupe sagittale\"><figcaption class=\"wp-element-caption\">Anatomie d\u2019un kyste p\u00e9riapical congestif (sacculaire) : coupe sagittale\u00a0\u2013 <a href=\"https:\/\/catalog.voka.io\/models\/3ed27118-f048-4865-b4ec-042c2caa7e2f\/127b9074-8c2d-4943-87a6-2ea48774cc23\/a2afdeb7-ecff-48bc-a3ed-bbc50ec85789\/6e983018-8d7c-4f5f-9169-f00cfb0383cf\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">mod\u00e8le\u00a03D<\/a><\/figcaption><\/figure>\n<h2 id=\"diagnostic\" class=\"wp-block-heading\">Diagnostic<\/h2>\n<ul class=\"wp-block-list\">\n<li>Recueil des plaintes et des ant\u00e9c\u00e9dents.<\/li>\n<li>M\u00e9thodes cliniques : examen visuel, percussion, palpation du sillon gingivo-labial. <\/li>\n<li>Tests thermique et \u00e9lectrique.<\/li>\n<li>Radiographie (radiographie intra-orale, radiovisiographie, orthopantomographie (OPT), tomographie volumique \u00e0 faisceau conique (TVFC)) : une cavit\u00e9 carieuse, une restauration ou un d\u00e9faut traumatique atteignant la chambre pulpaire peuvent \u00eatre observ\u00e9s. Les racines des dents adjacentes \u00e0 la l\u00e9sion peuvent \u00eatre d\u00e9plac\u00e9es ou raccourcies. <\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">Il n\u2019existe actuellement aucun outil de diagnostic non invasif capable de diff\u00e9rencier avec pr\u00e9cision un granulome d\u2019un kyste. La taille de la radio-clart\u00e9 \u00e0 l\u2019apex de la racine n\u2019est qu\u2019un indicateur indirect : avec la taille de 10 \u00e0 20 mm, la probabilit\u00e9 de la pr\u00e9sence d\u2019un kyste peut atteindre 60 % ; si la taille est sup\u00e9rieure \u00e0 200 mm2, cette probabilit\u00e9 est proche de 100 %. Toutefois, le diagnostic d\u00e9finitif n\u2019est possible qu\u2019apr\u00e8s une biopsie chirurgicale ou l\u2019extraction de la dent.<\/p>\n<h2 id=\"manifestations-cliniques\" class=\"wp-block-heading\">Manifestations cliniques<\/h2>\n<p class=\"wp-block-paragraph\">Les patientes ne pr\u00e9sentent g\u00e9n\u00e9ralement pas de plaintes. Le plus souvent, les kystes sont d\u00e9couverts fortuitement lors d\u2019un examen radiologique. Les patients peuvent indiquer la pr\u00e9sence d\u2019une tum\u00e9faction au niveau de la mandibule ou du maxillaire, du c\u00f4t\u00e9 vestibulaire ou palatin. L\u2019examen visuel r\u00e9v\u00e8le une cavit\u00e9 carieuse profonde, une restauration ou un d\u00e9faut traumatique atteignant la chambre pulpaire. La percussion de la dent est indolore. La palpation du sillon gingivo-labial n\u2019entra\u00eene pas non plus de douleur. <\/p>\n<p class=\"wp-block-paragraph\">Il peut y avoir une voussure h\u00e9misph\u00e9rique de la m\u00e2choire, dense et indolore \u00e0 la palpation, la muqueuse dans cette zone ne pr\u00e9sentant pas de changements pathologiques visibles. Si la couche corticale dans la zone de la l\u00e9sion est amincie, une cr\u00e9pitation osseuse au niveau du gonflement peut se produire \u00e0 la pression. Si la couche corticale de la m\u00e2choire est d\u00e9truite, lors de la percussion de la dent causale, la palpation dans la projection de l\u2019apex radiculaire peut r\u00e9v\u00e9ler une fluctuation. Lorsque le kyste est localis\u00e9 au niveau des incisives maxillaires, un gonflement de la paroi inf\u00e9rieure de la cavit\u00e9 nasale peut \u00eatre observ\u00e9.<\/p>\n<p class=\"wp-block-paragraph\">La dent causale ne r\u00e9pond pas aux stimuli thermiques et \u00e9lectriques, ce qui constitue un crit\u00e8re de diagnostic important en pr\u00e9sence d\u2019une radio-clart\u00e9 dans la zone p\u00e9riapicale de plusieurs dents.<\/p>\n<div class=\"social-banner-block\">\n<div class=\"social-banner-content\">\n<p class=\"h5-title text-black\">Retrouvez d\u2019autres contenus scientifiquement exacts sur nos m\u00e9dias sociaux<\/p>\n<p><span class=\"social-banner-text text-grey\">Abonnez-vous et ne manquez pas les derni\u00e8res ressources<\/span><\/p>\n<div class=\"banner-icons-wrapper\"><a class=\"social-icon-link\" href=\"\" data-link=\"https:\/\/www.facebook.com\/VOKA3DAnatomyAndPathology\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/facebook.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"\" data-link=\"https:\/\/www.instagram.com\/voka.io\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/insta.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"\" data-link=\"https:\/\/www.linkedin.com\/company\/voka-io\/posts\/?feedView=all\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/linkedin.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"\" data-link=\"https:\/\/www.youtube.com\/@vokaio\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/youtube.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"\" data-link=\"https:\/\/www.pinterest.com\/voka3danatomyandpathology\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/pinterest.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"\" data-link=\"https:\/\/www.tiktok.com\/@voka.io\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/tiktok.svg\" alt=\"social link\"><\/a><\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"social-banner-image\" loading=\"lazy\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/social-media-banner-mobile-image.webp\" alt=\"Banner background\"><\/div>\n<h2 id=\"traitement\" class=\"wp-block-heading\">Traitement<\/h2>\n<p class=\"wp-block-paragraph\">\u00c0 ce jour, il n\u2019y a pas de preuve directe qu\u2019un traitement endodontique non chirurgical entra\u00eene la r\u00e9gression d\u2019un kyste p\u00e9riapical. Compte tenu des m\u00e9canismes pathog\u00e9niques possibles, la croissance \u00e9pith\u00e9liale peut cesser apr\u00e8s l\u2019\u00e9limination du facteur bact\u00e9riel stimulant, par exemple apr\u00e8s un traitement endodontique. Avec le temps, le rev\u00eatement \u00e9pith\u00e9lial peut s\u2019amincir ou dispara\u00eetre, cr\u00e9ant ainsi les conditions n\u00e9cessaires \u00e0 la gu\u00e9rison.<\/p>\n<p class=\"wp-block-paragraph\">La premi\u00e8re \u00e9tape est donc un traitement endodontique de la dent : l\u2019extirpation de la pulpe non vitale ou l\u2019\u00e9limination de l\u2019ancien mat\u00e9riau d\u2019obturation des canaux radiculaires, puis leur instrumentation et traitement m\u00e9dicamenteux. Lors de la pr\u00e9paration instrumentale des canaux radiculaires, une ponction intracanalaire du kyste est effectu\u00e9e selon les indications. Par la suite, une obturation herm\u00e9tique des canaux radiculaires est r\u00e9alis\u00e9e, suivie d\u2019une restauration de la dent. <\/p>\n<figure class=\"wp-block-video\" id=\"animation-3d-traitement-endodontique-d-une-dent\"><video controls><source data-src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dentistry\/periapical-cyst\/endodontic-tooth-treatment.webm\" type=\"video\/webm\"><\/source><\/video><figcaption class=\"wp-element-caption\">Animation 3D : traitement endodontique d\u2019une dent<\/figcaption><\/figure>\n<p class=\"wp-block-paragraph\">Il s\u2019agit d\u2019une r\u00e9duction de la taille du kyste soit par incision chirurgicale \u00e0 travers la paroi du kyste et insertion d\u2019un drainage, soit par ponction extracanalaire, qui consiste \u00e0 aspirer le contenu du kyste avec deux aiguilles de grand diam\u00e8tre et \u00e0 irriguer sa cavit\u00e9 avec une solution physiologique st\u00e9rile.<\/p>\n<p class=\"wp-block-paragraph\">Ensuite, si la l\u00e9sion p\u00e9riapicale ne gu\u00e9rit pas, on proc\u00e8de \u00e0 l\u2019\u00e9nucl\u00e9ation du kyste par curetage p\u00e9riapical, par r\u00e9section de l\u2019apex de la racine avec obturation r\u00e9trograde ou par amputation de la racine avec ablation simultan\u00e9e de la membrane kystique. <\/p>\n<p class=\"wp-block-paragraph\">En cas de mauvais pronostic du traitement endodontique ou de la chirurgie p\u00e9riapicale, la dent doit \u00eatre extraite.<\/p>\n<div>\n<h2 class=\"faq-title h2-article\" id=\"faq\">FAQ<\/h2>\n<div class=\"faq-section\">\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">1. Qu\u2019est-ce qu\u2019un kyste p\u00e9riapical\u00a0?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">Le kyste p\u00e9riapical est une masse pathologique chronique qui appara\u00eet autour de l\u2019apex de la racine dentaire \u00e0 la suite d\u2019une n\u00e9crose pulpaire et d\u2019une inflammation p\u00e9riapicale.<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">2. Quels sont les sympt\u00f4mes d\u2019un kyste p\u00e9riapical ?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">Dans les premiers stades, le processus peut \u00eatre asymptomatique. Au fur et \u00e0 mesure de son \u00e9volution, un gonflement de la gencive, une g\u00eane, une douleur \u00e0 la morsure, un assombrissement de la dent ou la formation d\u2019une fistule peuvent se produire.<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">3. Comment traiter un kyste p\u00e9riapical\u00a0?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">On peut r\u00e9aliser un traitement m\u00e9canique et m\u00e9dicamenteux des canaux radiculaires et leur obturation, une cystotomie (ablation partielle du kyste) ou une cystectomie (ablation totale du kyste avec r\u00e9section de l\u2019apex de la racine).<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">4. Quels sont les dangers d\u2019un kyste p\u00e9riapical non trait\u00e9\u00a0?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">En l\u2019absence de traitement, le kyste peut augmenter de taille, d\u00e9truire le tissu osseux environnant, \u00e9carter et r\u00e9sorber les racines des dents voisines, se transformer en abc\u00e8s, se compliquer d\u2019une p\u00e9riostite, d\u2019une ost\u00e9omy\u00e9lite ou provoquer une infection g\u00e9n\u00e9ralis\u00e9e.<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"sources-list-block sources-list-hidden\" id=\"references\">\n<div class=\"sources-list-content\">\n<div class=\"sources-list-title\">\n<p class=\"small-text-bold text-black sources-list-title-text\">R\u00e9f\u00e9rences<\/p>\n<div class=\"sources-expand-button-wrapper-mobile\">\n<div class=\"sources-expand-button\"><svg width=\"32\" height=\"32\" viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 12L16 20L24 12\" stroke=\"#8C9AAB\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><\/path><\/svg><\/div>\n<\/div>\n<\/div>\n<div class=\"sources-list-items\">\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">1.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>VOKA 3D Anatomy & Pathology \u2013 Atlas 3D complet d\u2019anatomie et de pathologie [Internet]. VOKA 3D Anatomy & Pathology (VOKA 3D Anatomie et Pathologie). <\/cite><\/p>\n<p><span class=\"small-text-medium text-grey\">Disponible depuis\u00a0: https:\/\/catalog.voka.io\/<\/span><\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">2.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Berman LH, Hargreaves KM, editors. Cohen\u2019s pathways of the pulp [Les voies de la pulpe de Cohen]. 12th ed. St. Louis (MO): Elsevier; 2020.<\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">3.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Torabinejad M, Fouad A, Shabahang S, editors. Endodontics: principles and practice. 6th ed. St. Louis (MO): Elsevier; 2020.<\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">4.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>American Association of Endodontists. Guide to clinical endodontics [Internet]. Chicago: American Association of Endodontists; 2019 Jun 3.  <\/cite><\/p>\n<p><span class=\"small-text-medium text-grey\">Disponible \u00e0 l\u2019adresse\u00a0: https:\/\/www.aae.org\/specialty\/clinical-resources\/guide-clinical-endodontics\/<\/span><\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">5.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Ricucci D, Siqueira JF. Endodontology: an integrated biological and clinical view. Hanover Park (IL): Quintessence Publishing; 2013.<\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">6.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Bergenholtz G, H\u00f8rsted-Bindslev P, Reit C, editors. Textbook of endodontology. 2\u00e8me \u00e9d. Chichester (UK): Wiley-Blackwell; 2013. <\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">7.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>H\u00fclsmann M, Sch\u00e4fer E, Bargholz C, Barthel C. Problems in endodontics: etiology, diagnosis and treatment. Hanover Park (IL): Quintessence Publishing; 2009.<\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">8.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Beer R, Baumann MA, Kielbassa AM. Taschenatlas der Endodontie [Pocket atlas of endodontics]. Stuttgart: Georg Thieme Verlag; 2004. Allemand. <\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">9.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Petersson A, Axelsson S, Davidson T, Frisk F, Hakeberg M, Kvist T, et al. Radiological diagnosis of periapical bone tissue lesions in endodontics: a systematic review [Diagnostic radiologique des l\u00e9sions du tissu osseux p\u00e9riapical en endodontie\u00a0: revue syst\u00e9matique]. International Endodontic Journal [Internet]. 2012 Mar 19;45(9):783\u2013801. <\/cite><\/p>\n<p><span class=\"small-text-medium text-grey\">Disponible depuis\u00a0: https:\/\/doi.org\/10.1111\/j.1365-2591.2012.02034.x <\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"sources-expand-button-wrapper\">\n<div class=\"sources-expand-button\"><svg width=\"32\" height=\"32\" viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 12L16 20L24 12\" stroke=\"#8C9AAB\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><\/path><\/svg><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Le kyste p\u00e9riapical est une cavit\u00e9 pathologique au niveau de l&rsquo;apex de la racine dentaire, contenant du liquide et tapiss\u00e9e d&rsquo;\u00e9pith\u00e9lium pavimenteux stratifi\u00e9 non k\u00e9ratinis\u00e9. \u00c9tiologie L&rsquo;apparition d&rsquo;un kyste p\u00e9riapical est due \u00e0 une infection microbienne dans le syst\u00e8me canalaire de la dent. Les principales cellules impliqu\u00e9es dans la formation des l\u00e9sions de ce type [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"template":"","diseases_category":[231],"class_list":["post-642","diseases_post","type-diseases_post","status-publish","hentry","diseases_category-odontologie"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Kyste p\u00e9riapical\u00a0: causes, sympt\u00f4mes et m\u00e9thodes de traitement<\/title>\n<meta name=\"description\" content=\"Le kyste p\u00e9riapical est une masse inflammatoire chronique au niveau de l&#039;apex de la racine dentaire qui r\u00e9sulte d&#039;une infection prolong\u00e9e. 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