临床上畸形中央尖并不少见,多由于此尖折断后引起牙髓感染或根尖脓肿而就诊。特刖是恒牙萌出后的一、二年内,牙根尚未发育完成,根尖呈喇叭口状,一旦牙髓感染或坏死,治疗上就会造成很大困难,其中大部分患牙无法治愈,最后不得不将其拔除。 Clinical deformity is not uncommon central tip, mostly due to this sharp break caused by pulp infection or apical abscess and treatment. Special 刖 is the eruption of permanent teeth after a year or two, root development has not yet completed, the tip was bell mouth, once the pulp infection or necrosis, treatment will cause great difficulties, most of which can not be cured teeth, and finally Had to be removed.