| 摘要 |
The invention relates to a magnetostrictive insert element for use in a tool holder of an ultrasonic dental treatment device with at least one first longitudinal section having a dental tool and a coupling element and a second adjoining second longitudinal section with a magnetostrictive ultrasonic converter, the first longitudinal section having a first length and a first weight and the second longitudinal section having a second length and a second weight. The ratio between the first and second length is for example between 0.5 and 0.8. Alternatively or in addition, the ratio between the first and second weight is between 0.1 and 0.3.
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