Consolaro Alberto
Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brazil.
Dental Press J Orthod. 2020 Mar;25(2):18-23. doi: 10.1590/2177-6709.25.2.018-023.oin. Epub 2020 May 29.
If essential care is thorough, teeth with extensive orthodontically induced dental resorption can have the same endurance as normal teeth. These teeth are subjected to the same disturbances as normal ones, such as dental trauma, dental caries and periodontal disease, all of which are independent of severe dental resorption. Orthodontic retreatments of teeth presenting with extensive orthodontically induced dental resorption must take into consideration that these roots are shorter in length, therefore, they are more prone to root resorption. Conventional movements are not viable in severe resorption, but Orthodontics offer some alternatives, such as; 1) movement of multiple teeth, providing better distribution of force; 2) use of lesser forces along with bodily movements, as opposed to rotation; 3) anchorage using miniplates, which provide more diffuse and equally distributed force and movements upon teeth and bone. Extensive orthodontically induced dental resorption are not an indication for endodontic treatment. These teeth also should not be replaced by osseointegrated dental implants, but they must receive special care, as they must remain in the dental arch indefinitely.
如果基础治疗彻底，患有严重正畸诱导性牙吸收的牙齿可以与正常牙齿具有相同的耐久性。这些牙齿与正常牙齿受到相同的干扰，如牙外伤、龋齿和牙周病，所有这些都与严重的牙吸收无关。对患有严重正畸诱导性牙吸收的牙齿进行正畸再治疗时必须考虑到这些牙根较短，因此，它们更容易发生牙根吸收。在严重吸收的情况下，传统的牙齿移动方式不可行，但正畸学提供了一些替代方法，例如：1）移动多颗牙齿，提供更好的力分布；2）与旋转相反，在整体移动时使用较小的力；3）使用微型钢板进行支抗，其能在牙齿和骨骼上提供更分散且分布均匀的力和移动。严重的正畸诱导性牙吸收并非牙髓治疗的指征。这些牙齿也不应被骨结合式牙种植体替代，但它们必须得到特殊护理，因为它们必须无限期地保留在牙弓中。
