Coronal leakage

Coronal leakage in dentistry means the bacillus goes into tooth through the space of incompatible prosthetic margin, or the space of shortage of bonding materials.

Coronal leakage is widely acknowledged as a cause of the failure of the root canal treatment.

The influence of the method of canal preparation on the quality of apical and coronal obturation.
[J Endod. 1979]

The crown restoration is more important than the root canal filling.

Periapical status of endodontically treated teeth in relation to the technical quality of the root filling and the coronal restoration.
[Int Endod J. 1995]

Guttapercha and sealer alone can not prevent coronal leakage.

The influence of orifice sealing with various filling materials on coronal leakage. [Dent Mater J. 2004]

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