BUC® 3A The Slimmer Digger, 24.2mm

Obtura Spartan · BUC® ultrasonic tips

Troughing around a broken instrument in the coronal half of the root

Getting around a separated file means removing dentine you can barely see, in a space that will not take a bur. The BUC® 3A is Obtura Spartan's answer: 24.2mm long, half the diameter of the BUC® 3, diamond coated, with the water port set further back on the shaft to keep the view clear.

This pack: Obtura Spartan BUC® 3A "The Slimmer Digger" Ultrasonic Tip, 24.2mm length · single tip · diamond coated · supplied non-sterile

›  Working end: Half the diameter of the BUC® 3, fine grit, diamond coated. Water port set further back on the shaft.

›  Thread: M3 x 0.6 – the standard BUC® thread

›  Intensity: Low – Obtura Spartan's guidance

What Obtura Spartan list it for

›  Troughing around broken instruments in the coronal half of the root

›  Half the diameter of the BUC® 3, and 4mm longer

›  Water port set further back on the shaft

Supplied non-sterile. Reprocessing is validated to ISO 17664-1 and ISO 17665-1: pre-clean in a pH-neutral ultrasonic solution, dry, then prevacuum steam at 132°C for 4 minutes.

Asked before buying

Will it fit my ultrasonic unit? Obtura Spartan make the range for scalers using M3 x 0.6 threading, and offer every tip again as the E series with M3 x 0.5. This one is M3 x 0.6. Check your unit's manual first – they warn that forcing a tip with the wrong thread damages the device. The tip wrench seats it properly.

How long does a tip last? Obtura Spartan state the tips were tested to 250 reprocessing cycles to ISO 18397 without loss of performance or corrosion – but end of life is set by wear in use as well, so inspect each tip during cleaning and retire damaged ones. They also ask for very light pressure: small-diameter tips are subject to breakage at any time.

Complete the set-up

Diamond coated · Fine grit · M3 x 0.6 · Autoclavable 132°C · REF 930-049