Question 81 (part 2) · LDEK · Restorative treatment of immature permanent teeth
Preparing a cavity on approximal surface of a molar with preserving the margin, entry to the decay in the area of healthy enamel on the occlusal surface and secondary entry on the approximal surface in the place of removed caries, is called:
- A. closed tunnel method.
- B. open tunnel method.
- C. fissure method.
- D. pinhole method.
- E. in the form of minibox.
Hint
Tunnel preparations are classified by whether the approximal enamel wall is left intact or perforated.
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