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Anchor not setting

 
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AlanQuan



Joined: 08 Apr 2011
Posts: 19

PostPosted: Sun Jan 20, 2013 10:32 am    Post subject: Anchor not setting Reply with quote

I placed a core buildup on a vital tooth with Anchor topped with Z250, and had to start endo 3 days later.
I was shocked to find the anchor was soft and crumbly like Cavit underneath the Z250.
I then did benchtop tests which showed the Anchor would not self cure, and light curing only part-way set the material. Injectafil did the same.

Now, I do not often use dual cure composites and the tubes of Anchor and Injectafil were both in date (The Anchor was set to expire Feb 2013) but each may have been open for more than 6 months - always with a filled up mixing tip attached.

I opened a new tube of anchor and injectafil and benchtop tests showed they both cured just fine. Is there a 'use within' timeframe once the tubes have been opened?
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Scott
Site Admin


Joined: 12 May 2005
Posts: 150
Location: Chicago

PostPosted: Mon Jan 21, 2013 10:15 am    Post subject: Anchor Reply with quote

Dr. Quan,

I'm sorry to hear about the issue you experienced with Anchor. Anchor has a shelf life of 2 years. If the product is older than 2 years it will not self cure. The material will light activate but not self cure. The 2 year shelf life can be shortened if the material is not stored at or below room temperature.

Please forward me the lot number of the cartridge and order date so I can get you a replacement immediately.

Sincerely,
Scott
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AlanQuan



Joined: 08 Apr 2011
Posts: 19

PostPosted: Mon Jan 21, 2013 10:41 am    Post subject: Reply with quote

Ah, bugger. Threw the cartridges away. Realised just now the lot no. may have been useful to you.
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