Clinical ResearchOutcomes of Endodontic Micro-resurgery: A Prospective Clinical Study
Section snippets
Case Selection and Inclusion/Exclusion Criteria
The data were collected from patients in the Department of Conservative Dentistry at the Dental College, Yonsei University in Seoul, Korea between March 2001 and May 2009. All patients were examined for inclusion and a full history, and the clinical and radiographic examinations were undertaken to determine whether the tooth for which they had requested surgical retreatment was suitable.
The clinical criteria were the following: (1) history of a prior surgical treatment according to the
Results
Of the 54 cases treated, 42 cases came for recall after a period of 12 months. A recall rate of 77.8% (42 of 54 patients) was obtained. Table 2 presents the distribution of cases in relation to the recall period. Table 3 lists the distribution of the healing categories. The kappa value was 0.76, which shows the agreement between the 2 examiners was good. Of the 42 cases recalled, 39 cases were included in the success category, 33 and 6 with complete and incomplete healing, respectively. The
Discussion
The meta-analysis reported by Peterson and Gutmann (22) showed a low healing rate of 35.7% after resurgery. However, 5 of the 8 studies included in the analysis were published more than 30 years ago before the advent of microsurgical techniques and more biocompatible materials for root-end fillings. With more recent surgical techniques including magnification loupes (×4.5) and ultrasonic techniques, Gagliani et al (23) compared the outcomes of cases of endodontic surgery with cases of
Acknowledgments
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0021281).
The authors deny any conflicts of interest related to this study.
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