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1·Objective to test the accuracy of electronic apex locator in determining working length of anterior teeth using ODIS system.

目的用口腔数字成像系统(O DIS)检验根管长度测量仪在测定前牙根管工作长度时的准确性及实用性。

2·Conclusion the electronic apex locator could be successfully used in determining working length of anterior teeth, and the ODIS...

结论根管长度测量仪测定前牙根管长度比较满意，OD IS可对工作长度测定作有效的补充。

3·Conclusion: the images of various pathologic change produced by using ODIS-I can basically meet the need of clinical examinations while the performance of the system needs further improvement.

结论：应用odis _ I口腔数字成像系统拍摄的各类牙齿病变的图像可以基本满足临床检查的需要。尚有待于进一步提高口腔数字成像系统的性能。