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(a) Diamond-coated ultrasonic tips with various angles (Microsurgical KiS tips). 3D and 5D for buccal canals. 4D and 6D for lingual canals. (Image courtesy of Young Specialties, https://www.youngspecialties.com/product/kis-ultrasonic-tips-1-ct, accessed on 27 January 2021) (b) Retrograde cavity preparation for mesial root-end of a mandibular first molar with JETip.
