Lentulo spiral uses

 # Lentulo spirals are used for:
A. Locating canal orifice
B. Pulp extirpation
C. Enlarging coronal third of the root canal
D. Application of root canal sealer

The correct answer is D. Application of root canal sealer. 

- Finger pluggers are used for vertical compaction of gutta percha. 
- Finger spreaders are used for  lateral compaction of gutta percha.
- Lentulo spiral is used to deliver sealer or triple antibiotic paste to the root canal.

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