Chirurgie orthognathiquethumb|Vue de côté d'un crâne, montrant l'os zygomatique, le maxillaire, la mandibule et les dents. La chirurgie orthognathique est la chirurgie des malformations congénitales ou acquises des mâchoires (maxillaire et mandibule). Cette chirurgie a pour but l'obtention d'un engrènement dentaire ou occlusion idéale, d'une amélioration de la fonction notamment articulaire et une amélioration de l'esthétique.
Cracked tooth syndromeCracked tooth syndrome (CTS) is where a tooth has incompletely cracked but no part of the tooth has yet broken off. Sometimes it is described as a greenstick fracture. The symptoms are very variable, making it a notoriously difficult condition to diagnose. Cracked tooth syndrome could be considered a type of dental trauma and also one of the possible causes of dental pain. One definition of cracked tooth syndrome is "a fracture plane of unknown depth and direction passing through tooth structure that, if not already involving, may progress to communicate with the pulp and/or periodontal ligament.
Tooth ankylosisTooth ankylosis is the pathological fusion between alveolar bone and the cementum of teeth, which is a rare phenomenon in the deciduous dentition and even more uncommon in permanent teeth. Ankylosis occurs when partial root resorption is followed by repair with either cementum or dentine that unites the tooth root with the alveolar bone, usually after trauma. However, root resorption does not necessarily lead to tooth ankylosis and the causes of tooth ankylosis remain uncertain to a large extent.
Ligament alvéolo-dentaireLe ligament alvéolo-dentaire ou desmodonte, aussi appelé ligament desmodontal ou ligament parodontal, est un tissu conjonctif dense entourant la racine des dents et situé entre le cément et la corticale alvéolaire interne de l'os alvéolaire. Le desmodonte peut faire plus précisément référence à l'espace anatomique compris entre le cément et l'os alvéolaire. En effet la dent n'est pas soudée à l'os. Il existe toujours un espace entre la dent et l'os alvéolaire, visible à la radiographie.
