Mazhari Fatemeh, Valizadeh Maryam
Department of Pediatric dentistry, Dental School, Mashhad University of Medical Sciences, Mashhad, Iran.
Department of Pediatric Dentistry, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
J Clin Pediatr Dent. 2022 Nov;46(6):58-62. doi: 10.22514/jocpd.2022.028. Epub 2022 Nov 1.
Early loss of the primary second molar (DSM) before the eruption of the permanent first molar (PFM) may result in its mesial drift during the eruption. Traditionally, a distal shoe space maintainer is used in this situation to control the path of eruption and preserve the space. However, considering its disadvantages, an alternative appliance needs to be developed for guiding the unerupted PFM. The purpose of this article is to represent an innovative design for preserving space after the early loss of the DSM, describe the fabrication process, and present some data on the successful results of using the appliance in five cases.
在恒牙第一磨牙（PFM）萌出之前，乳磨牙（DSM）过早缺失可能会导致其在萌出过程中向近中漂移。传统上，在这种情况下会使用远中导板间隙保持器来控制萌出路径并保留间隙。然而，考虑到其缺点，需要开发一种替代装置来引导未萌出的PFM。本文的目的是展示一种在DSM过早缺失后保留间隙的创新设计，描述制作过程，并展示在五个病例中使用该装置取得成功结果的一些数据。
