Mosleh Al Shamrani, Fouad S Salama.
Concussion and intrusive luxation of Maxillary Primary Central Incisors: Case Report.
Pak Oral Dental J Jan ;22(1):15-8.

There are several subcategories of luxation injury which include concussion, subluxation, lateral luxation, extrusive luxation and intrusive luxation. Concussion is the case in which the tooth is sensitive to percussion but has not been displaced and is not abnormally mobile while intrusive luxation involves the displacement of the tooth apically into the alveolar socket. The purpose of this article is to present a case of a 3-year-old boy in whom two primary maxillary central incisors were subjected to concussion and intrusive luxation. Clinical and radiographic examinations are described. The outcomes of the two central incisors were not different from each other except in the time of the periapical abscesses formation at 19 and 34 months after injury even though they sustained different injuries from similar trauma.

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