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← Conservative Dentistry & Endodontics / 4th Year / BDS

LOOK CLOSELY / UNDERSTAND CLEARLY

Endodontic files and reamers

Recognise endodontic instruments and describe their design and limits.

REFERENCE GALLERY1 / 1 reference
endodontic files — reference view
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Handles

Colour-coded hand instrument handles in the reference set.

Zoom in, then drag to inspect. Keyboard: + / − to zoom, arrows to pan, 0 to reset. Tap the numbered markers to explore parts.

endodontic files — reference view

Image: Metju12 Talk · Source / original · Public domain

Resized and converted to WebP; original colours retained.

Endodontic files and reamers

Identify and explain

Endodontic instruments vary in cross-section, taper, material and mode of use; safe use depends on the specific system and supervised protocol.

  • Handles
  • Fluted working portion
  • Instrument tip
1

Identify

Distinguish handles, working shafts and fluted portions in the reference set.

2

Differentiate

Do not assume every file is designed for the same motion or speed.

3

Review

Check size, condition and system instructions before supervised use.

At the viva table

Try answering aloud, then open the suggested answer. Examiner questions vary.

01 / Do colour and size alone describe every file property?

No. Taper, material and design also matter.

02 / Can every file be used in a motor?

No. Follow the specific instrument’s intended use.

03 / Why inspect for damage?

Deformation or fatigue can increase failure risk.

04 / Does a stop alone confirm working length?

No. Length determination requires the appropriate assessment and verification.

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