Dental Asia May/June 2022

USER REPORT
BASE DENTINE 3M2 (70%) and
WINDOW (30%). After refiring,
the incisal area was created with
an alternating layering of EFFECT
ENAMEL 7 (orange translucent),
9 (bluish translucent), 10 (blue), and
11 (grayish translucent), and the
cervical area was intensified using
SUN DENTINE 2 (light orange).
Fig. 7 Fig. 8
After fixing the intermediate result
with another firing, the upper third
of the restoration was covered
with ENAMEL LIGHT, and the core
of the incisal area was modified
with EFFECT PEARL (pastel yellow)
to reproduce the effects of a
youthful tooth structure. After the
final enamel firing, the delicate
restorations were carefully finished
and polished using fine-diamond
instruments, which proved easy,
thanks to the fine-structure
feldspar ceramic. Finally, the two
veneers were finished with the
glaze firing.
Fig. 9 Fig. 10
Fig. 11 Fig. 12
INTEGRATION AND CONCLUSION
The wafer-thin restorations
were tried in with glycerine gel.
All parties were satisfied with
the results, and the restorations
were finalised by cleaning the
bonding surfaces, etching with
hydrofluoric acid and silanising.
This was followed by phosphoric
acid etching of the enamel areas
and fully adhesive cementation of
the restorations with composite
cement. After light-curing and
removal of the excess, aesthetic
restoration results that harmonised
with the natural hard tooth
substance of the adjacent teeth
were achieved. Despite preparation
limited by the enamel, and the
requirement for a minimally
invasive procedure, natural and
lively looking restorations made
of fine-structure feldspar ceramic
were created in an extremely
confined space. The patient was
very happy with his new smile. DA
Fig. 13
Fig. 7: The completed restorations after the finishing work on the model
Fig. 8: The gingival mask was used to check the cervical contouring
Fig. 9: The two delicate veneers before conditioning with hydrofluoric acid and silane.
Fig. 10: After fully adhesive cementation, aesthetic treatment results were achieved
Fig. 11: The two veneers harmonised with the natural hard tissue of the teeth
Fig. 12: The restorations looked vibrant and gave the teeth full morphology
Fig. 13: The patient was completely satisfied with the result of the minimally invasive restoration
ABOUT THE AUTHORS
Dr Su Yu-Lung graduated
from the department of
dentistry at National Yang
Ming University, and currently
practices at Premier Dental
Clinic and Prevail Dental
Clinic in Hsinchu.
Dental technician Shih Tsai-Lieh is
the deputy secretary-general of the
Taiwan Dental Technology Institute,
and the director of Changhua
Dental Association. He is also
an International Certified Master
Dental Technician of VITA.
42 DENTAL ASIA MAY / JUNE 2022