My dental technician preserves a land area on the border when pouring working casts of definitive impressions. A record of the peripheral roll of the impression is preserved in the cast. This enables waxing up of the denture periphery to the same functional movements moulded during impression making in the patients’ mouth.

This results in the polished surface of the denture having optimum border extension, maximising retention (peripheral seal), support and stability.

Denture Blog 31

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