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16 multidisciplinary section DENTAL TECHNOLOGY, JANUARY-MARCH 2023

FIG 6: Printed Models

FIG 7: Clinical Chairside Temporary FIG 8: Anterior and Posterior PMMA Milled Temps FIG 9: PMMA Milled Temps with Anterior disocclusion

FIG 10: Anterior CAD Design File

for 6 weeks to adjust and test the new bite in function. Periodic of anterior full contour zirconia teeth, we moved to changing posteri-
checks were made to investigate para joint discomfort. All excursive or milled PMMA temps to full contour zirconia while maintaining
movements were checked periodically for interferences and centric established anterior vertical with the final full contour zirconia
maximum intercuspation equilibrated bilaterally to ensure the patient crowns permanently cemented.
was comfortable. All PMMA temporary teeth were cemented with All anterior sextant teeth were anesthetized (Lignospan 1:80,000
Non Eugenol Temporary Cement (TempoCem, DMG) 1 ADR- No adverse reaction noted) The anterior PMMA crowns were
removed, preparations refined and double cord (Sure endo 00 + 000)
STAGE IV(A): DEFINITIVE FULL CONTOUR ANTERIOR ZIRCONIA CROWNS placed. Putty wash impressions were made with additional silicone
After 6 weeks the patient was checked for comfort, function and abil- (Honigum, DMG), bite registered (Virtual, bite registration paste,
ity to chew food. The bite was double checked with 200 micron IVOCLAR) and facebow transfer (ADLER) taken. The anterior PMMA
(Bausch) for any interferences in centric and eccentric motions. milled temps were then cemented back with temporary cement
The plan in phase 4 was to first change upper and lower anterior (TempoCEM, DMG) and patient sent home.
sextant (upper + lower canine to canine- 12units) from milled PMMA Upon receiving the anterior final full contour zirconia crowns from
to full contour zirconia while maintaining established posterior verti- the lab, the anterior PMMA crowns were removed and teeth cleaned.
cal with the milled PMMA temporary in situ. After final cementation The zirconia crowns were checked in the mouth for fit, colour, aes-