Autotransplantation of a premolar to the maxillary anterior region in young children-how long should the donor root be?A case report

• 作者: Amram Zagury Uri Zilberman
• 来源期刊: 世界口腔医学杂志
• 学科: 医学
• 关键词: AUTOTRANSPLANTATION Dental TRAUMA DONOR TOOTH ROOT length
• 年，卷（期）: 2015,（4）
• 页码范围: 141-145
• 页数: 5页
• 分类号: R

摘要

Autotransplantation of premolars to anterior region after incisor loss due to trauma is accepted as the best restoration procedure with very long follow-ups.There are two main protocols:Premolars with only two thirds of the root or premolars with complete root development.Premolars with two thirds of the root completed remain vital and show complete pulp obliteration while premolars with closed apex require root canal treatment.The problem arises when the child is very young and the root of the donor premolar is developed for only one third.This case report describes the outcome of an autotransplantation of a lower first premolar with only a third of developed root to the anterior region.The donor tooth was extracted with his follicle and placed instead of tooth No.21.For the first month esthetics was restored with a glass-fibers ribbon attached to tooth No.11 and composite material.After a month,the crown erupted and was reshaped to mimic an incisor with composite.Orthodontic movement was performed after 5 mo,in order to alleviate the gingival contour.The final restoration was performed after 15 mo.Follow up showed full root development with normal mobility,continuous periodontal ligament and complete pulp obliteration.A multidisciplinary approach and meticulous preparation are necessary for a positive result in autotransplantation of premolars with only a third of root development to the anterior region and this case report show that this method can be performed in very young children.