American University of Beirut Medical Center and Private practice, Beirut, Lebanon.
Am J Orthod Dentofacial Orthop. 2021 May;159(5):682-692. doi: 10.1016/j.ajodo.2020.09.024. Epub 2021 Jan 22.
The first molar has been reported to be the most caries prone tooth in the permanent dentition. Orthodontists are treating more adult patients who are more likely to have missing and severely decayed first molars. This article will show the various orthodontic and restorative options for first molars that are already extracted or have to be extracted. The following clinical situations will be addressed: molar uprighting and its advantages for the future restoration vs orthodontic space closure, strategic extraction of salvable first molars, impacted molars, and early extraction of compromised permanent first molars in young children.
第一磨牙被报道为恒牙列中最易患龋的牙齿。正畸医生治疗的成年患者越来越多,这些患者更有可能缺失和严重龋坏第一磨牙。本文将展示已经拔除或必须拔除的第一磨牙的各种正畸和修复选择。将讨论以下临床情况:磨牙直立及其对未来修复的优势与正畸间隙关闭,可保留第一磨牙的选择性拔除,阻生磨牙和幼儿有问题的恒牙的早期拔除。