2009 ASDA Key errors????

[laundry]

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Is it just me or are the 2006/2009 released exams teeming with errors in their keys. For example, according to the papers, mandibular premolars have most predictable root canal morphologies and a cavity liner minimal thickness is 15mm.....WTF?????

 

[elmos]

i think you are right cause in mosby's cavity liner is 0.5mm.