*Morankar Rahul, MDS, Assistant Professor Division of Pedodontics and Preventive Dentistry, Centre for Dental Education & Research, All India Institute of Medical Sciences.
**Ashima Goyal, MDS, Professor, Unit of Pedodontics & Preventive Dentistry, Oral Health Sciences Center, Post Graduate Institute of Medical Education and Research, Chandigarh.
J Clin Pediatr Dent. 2022 Jan 1;46(1):20-23. doi: 10.17796/1053-4625-46.1.4.
The succedaneous permanent teeth develop in close proximity to primary teeth. They can get accidentally luxated or avulsed during the extraction of primary teeth. The purpose of this paper was to describe a case of a 14-year-old boy with an "iatrogenic avulsion" of an immature mandibular second premolar during the extraction of a primary mandibular second molar. The case was managed successfully with replantation technique within 30 minutes of extra oral period and followed up for 5 years. The replanted tooth remained clinically asymptomatic, showed continued root development and eruption and remained vital. This paper had also discussed about the modifications in extraction technique to avoid the iatrogenic avulsion of permanent tooth bud during extraction of primary teeth.
继承恒牙在紧邻乳牙的位置萌出。在拔除乳牙的过程中，继承恒牙可能会意外脱位或被拔除。本文描述了一例 14 岁男孩在拔除下颌第二乳磨牙时发生“医源性脱位”的病例。在离体 30 分钟内，采用再植术成功地对该未成熟的下颌第二前磨牙进行了再植，并随访了 5 年。该再植牙临床无症状，继续进行根发育和萌出，并保持活力。本文还讨论了为避免在拔除乳牙时损伤恒牙胚而对拔牙技术进行的改良。
