Survival of avulsed permanent maxillary incisors in children following delayed replantation

Resident: Roberts

Date: 9/23/10

Article title: Survival of avulsed permanent maxillary incisors in children following delayed replantation.

Author: Barrett EJ, Kenny DJ.

Journal: Endodontics and Dental Traumatology

Year: 1997

Disscussion

Permanent incisors are the teeth most commonly avulsed because of trauma. Studies have proven that the survival rate is directly related to the time elapsed before reimplantation. The present study had two objectives: to describe the survival rate of permanant maxillary inciors that had remained avulsed for longer than 5 minutes and to test whether the survival rate had any relation to: patient age, stage of root development, root canal treatment performed post trauma, storage of an avulsed tooth in a physiologic medium prior to implantation

Results

The mean extra alveolar time was 123 min. Teeth reimplanted with open apices had a significantly decreased surivial rate when compared to those with closed apices. Those with open apices had a tendency to undergo severe progressive external root resorption. There was also a significant association between increased survival and obturation of a canal with gutta percha and sealer versus a tooth that had to be treated by apexification first. The tooth with RCT was 4.2 times as likely to survive than a tooth that underwent a process for apexification before RCT. 77% of the teeth that were reimplanted were brought to the dentist in some form of a physiologic storage medium such as milk or saliva. 13% were not brought in any form of storage medium and 10 percent were brought in water. These assessment were not factored into the overall success rate of a tooth for this study.

Assessment: Interesting and I would like to see comparison studies, especially involving open and closed apices.