NEBDN OSCE Practice Exam

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Gates Glidden drill is used to do what in canal preparation?

Used to soak Cresophene

Used to dry canal with paper points

Gain access to canal

Gates Glidden drills are used to create a coronal flare and gain straight-line access into the root canal. They remove dentin from the coronal portion to widen the canal entrance, making it easier for subsequent instruments to reach the apical region with less resistance. This preparation step helps improve cleaning and shaping efficiency and reduces the risk of file binding or transportation deeper in the canal. They are not used for soaking disinfectants, drying the canal with paper points, or filling the canal with gutta-percha.

Used to fill with gutta-percha points

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