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Bizarre lower second premolar - Courtesy ROOTS

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credited for the individual posts where they are -
From: Javier Pascual
Sent: Friday, December 17, 2010 11:45 PM
Subject: [roots] Bizarre lower second premolar

GP advised me previously he could restore this tooth without any 
problem (to me itīs a compromised build-up)

Pulp diagnosis: Necrosis
Periapical diagnosis: Acute Apical Abscess

Provisional coronal restoration with glass ionomer cement. 
I managed to locate and treat three canals (two buccal and one lingual). 
Hybrid technique with Pathfiles/Protaper/Profile. MAF Profile 30/04 in 
all canals. 4% NaOCl activated with Satelec Irrisafe #20. Ultracal XS 
canal dressing for 2 weeks. Obturation with guttapercha+AHPlus warm 
vertical continuous wave of condensation technique. Temporization with 
flow composite + cavit.

Look at the down pack radiograph. Do you think there is a fourth canal? 
After seeing the radiograph I tried to find, it but I was unable. 
:((( -  Javier

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