Ravin J J
Scand J Dent Res. 1981 Apr;89(2):117-23.
Enamel cracks or infractions occur in 10.5-12.5% of acute traumatized incisors. A detailed account of 1337 incisors suffering from pure infraction or infraction in conjunction with some form of fracture and/or damage to the supportive tissue as a result of an acute trauma is given. The teeth were examined at regular intervals, and the observation time was more than 2 year in the case of 70% of the material. The number of pulp deaths in teeth with pure infraction accounted for 3.5% of the total. There is a clear correlation to other coronal injuries to damage to the supportive tissue. complication in the form of pulpal damage may be expected in many cases involving damage to the supportive tissue.
在10.5%-12.5%的急性外伤切牙中会出现牙釉质裂纹或折断。本文详细记述了1337颗因急性外伤而出现单纯折断或合并某种形式骨折和/或支持组织损伤的切牙。对这些牙齿进行定期检查，70%的病例观察时间超过2年。单纯折断的牙齿中牙髓坏死的数量占总数的3.5%。这与其他冠部损伤以及支持组织损伤有明显的相关性。在许多涉及支持组织损伤的病例中，可能会出现牙髓损伤形式的并发症。
