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Pit and Fissure – Extensive lesion

Description
This series follows an old amalgam restoration placed originally as a Site 1, Size 3 with a protective design over the split mesio-lingual cusp. Subsequently this cusp failed so the lesion became a Site 1, Size 4.
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figure1
The original cavity following removal of the old amalgam restoration. Note the split at the base of the mesio-lingual cusp that had allowed the development of symptoms of pain under pressure.
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figure2
The completed cavity design including a protective bevel over the mesio-lingual cusp. Amalgam can now be built over that cusp to protect it from load.
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figure3
The completed amalgam restoration showing the design of the cusp protection.
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figure4
The same restoration at approximately 12 years after placement. The mesio-lingual cusp has now failed and the lesion has become a Site 1, Size 4 .

 
Copyright © 2003 Graham J Mount