Monday, 14 September 2015

MDS AIPGDEE preparations B-IDS | A laboratory remount of processed dentures MCQ

A laboratory remount of processed dentures is done in order to correct occlusal disharmony produced by errors primarily in the
A. mounting of the casts in the articulater.
B. registration of jaw relation records.
C. processing of acrylic.
D. registration of condylar guidance.




Ans C
In spite of taking all due precautions to prevent the errors just described, small occlusal inaccuracies invariably occur. It has been shown that a processed denture exhibits an average increase in height of 0.5 mm and a shift in tooth contact towards the posterior region. These errors can be corrected in the laboratory if a split-cast mounting technique is used. There is evidence that if complete dentures are processed by injection-molding rather than the more common compression-molding technique there is significantly less incisal pin opening and generally fewer occlusal inaccuracies.
 

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BAWA'S INSTITUTE FOR DENTAL SCIENCES