Kane Georgina, Cash Alex, Seehra Jadbinder
1 King's College London Dental Institute, Kings College Hospital NHS Foundation Trust, London, UK.
2 Queen Victoria Hospital NHS Foundation Trust, West Sussex, UK.
J Orthod. 2019 Jun;46(2):155-161. doi: 10.1177/1465312519838555. Epub 2019 Mar 28.
Pre-eruptive coronal resorption (PCR) is a rare phenomenon affecting unerupted permanent teeth. The aetiology of PCR is unknown and is often detected as an incidental finding. The prognosis of affected teeth can be extremely variable and may involve multidisciplinary management. The lower second permanent molars are commonly affected. The following is a description of three clinical cases of PCR affecting lower permanent molars in orthodontic patients.
萌出前牙冠吸收(PCR)是一种影响未萌出恒牙的罕见现象。PCR的病因尚不清楚,通常是偶然发现。患牙的预后差异很大,可能需要多学科治疗。下颌第二恒磨牙常受影响。以下是三例正畸患者下颌恒磨牙发生PCR的临床病例描述。