Complete denture treatment requires arrangement
of teeth tooth by tooth. As the alveolar ridges are well
formed and Ideal; resorbed and thick; resorbed, small
and thin at the crest.This article mentions use of
Complete denture Gypsum Index that can be used when
the patients ridge is conforming to Type1,2 or 3 as
1) Using plaster index as a guide for teeth
arrangement in Type 1,2,3 arch forms.
Teeth arrangement was done for Ideal edentulous
cast after fabricating self-cure denture base, occlusal
rims mounted with Class 1 ridge relation. A wax
extension was made around the middle third of the
buccal aspect of the denture teeth, measuring 2 mm
laterally and 2 mm in thickness. This wax extension is
positioned laterally and covers all the teeth. Plaster was
mixed in Ideal w: p ratio and an index was fabricated
on the occlusal surface of the teeth. Index measured 5
mm in thickness at the occlusal cusp area and involved
the wax extension laterally. Plaster was allowed to set.
Teeth Arrangement Index made for Ideal Ridge
conditions. Conclusion- A Plaster occlusal index is a
guide that can be used for teeth arrangement if the
ridge conditions allow.
Keywords : Gypsum Cast, Dental Plaster.