The analysis did show that the gear rim was shifted and the bearings of the drive have been defect.Both indicates that the handpiece has been dropped with a inserted drill.In this case the drive receives via the inserted drill a strong hit which causes the shift of the gear rim and also the damage of the bearings.The user instruction states that only fault free products should be used.A visual and function inspection test prior to each treatment is mandatory.Reported due to the 2 year presumption rule.Event occurred in (b)(6) and is reported as a similar product gets sold in the usa.
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