自体移植牙再灌注——通过牙科磁共振成像进行临床测量的比较

Reperfusion of autotransplanted teeth--comparison of clinical measurements by means of dental magnetic resonance imaging.

作者信息

Ploder O, Partik B, Rand T, Fock N, Voracek M, Undt G, Baumann A

机构信息

Clinic for Oral and Maxillofacial Surgery, General Hospital, University of Vienna Medical School, Austria.

出版信息

Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001 Sep;92(3):335-40. doi: 10.1067/moe.2001.116505.

DOI:10.1067/moe.2001.116505

PMID:11552155

Abstract

OBJECTIVE

Dental magnetic resonance imaging (dMRI) with administration of contrast material is one method of assessing pulpal perfusion. The purpose of this study was to evaluate the level of contrast enhancement displayed by means of dMRI after transplantation of teeth and to compare these findings with the results of tooth mobility, pocket depth, cold, and electrical tests.

STUDY DESIGN

Twenty-three teeth with either complete root formation or incomplete root formation (IRF) were investigated by using dMRI and were clinically examined at intervals of 2, 4, 8, and 12 weeks, as well as 6 months and 12 months after transplantation.

RESULTS

An analysis of the enhancement in the dental images revealed a significant difference between teeth with IRF and teeth with complete root formation. In addition, the time to occurrence of a positive reaction to the cold test was significantly longer for teeth with IRF.

CONCLUSIONS

The findings of this study indicate that transplanted IRF teeth are associated with reperfusion seen by means of dMRI as well as with delayed occurrence of a positive cold test.

摘要