Endo 3DP™ #19 Accessed Molar (LL6)

Endo 3DP™ · #19 lower left first molar · pre-accessed

Secondary curvature, an apical isthmus, and two distal canals hiding as one

Which tooth do most UK root canals actually happen in? The lower first molar – and this is the one that teaches why it is difficult. Acadental publishes working lengths of approximately 23 mm and lists the features plainly: pronounced secondary curvature, an isthmus in the apical third, and two independent canals in the distal root apically. Secondary curvature is the one trainees miss, because it does not show on the first film and it is exactly where files separate.

This item: 1 × Endo 3DP #19, lower left first molar (LL6), supplied pre-accessed
Made by Acadental, USA · mfr code 3D_AE601A_19RL

› The published length matters – with ~23 mm across all canals, a course can set stops before the exercise starts and compare like with like.
› See-through – the isthmus and the second distal canal are visible from outside, so a missed canal is a teaching moment rather than an argument.
› Its mirror image – #30 (LR6) is the same tooth on the right, with a simpler distal root.

Is this too hard for undergraduates?
For a first molar attempt, yes – start on #30 or the graded #14. This tooth suits DFT, DCT and postgraduate hands-on work where separation and missed anatomy are the subject.

Can I take working-length films?
Not on this one – the Endo 3DP range is radiolucent. Acadental publishes the lengths instead, and the Real-T Endo #19 is the radiopaque tooth at this position.

Will it survive a rotary file?
It is a single-hardness printed tooth intended for instrumentation, and pronounced curvature is the point – but treat a separated instrument here as the lesson it would be clinically, not a product fault.

Complete the system

Endo 3DP™ #19 · lower left first molar LL6 · working lengths ~23 mm · apical isthmus · two distal canals · pre-accessed · radiolucent · Acadental · REF ACA-3DAE601A19RL