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[Clinical study of electrical root canal length instruments].
1Poliklinik für Zahnerhaltung B der Westfälischen Wilhelms-Universität.
ZWR
|June 1, 1991
Summary
Electrical devices accurately measure root canal length in vital teeth but show significant differences in pulp gangrene cases. Combining electrical devices with X-rays and ensuring a dry canal are crucial for precise measurements.
Area of Science:
- Dentistry
- Endodontics
Background:
- Accurate root canal length determination is essential for successful endodontic treatment.
- Traditional methods like radiography have limitations in precision and radiation exposure.
Purpose of the Study:
- To compare the accuracy of electrical apex locators with radiographic measurements in determining root canal length.
- To evaluate the influence of pulp vitality and canal condition on measurement accuracy.
Main Methods:
- A clinical study involving 100 root canals.
- Comparison of measurements obtained via radiography and an electrical apex locator.
- Analysis of results based on pulp vitality (vital exstirpation) and pulp condition (pulp gangrene).
Main Results:
- Good agreement between methods was observed in 80% of cases with vital pulp exstirpation.
- Significant discrepancies were found in cases of pulp gangrene.
- Canal dryness was identified as a critical factor for accurate electrical measurements.
Conclusions:
- Electrical apex locators are reliable for measuring root canal length in vital teeth when used with radiography.
- Their accuracy is compromised in cases of pulp gangrene.
- Ensuring a dry canal is paramount for precise measurements using electrical devices.