A veneer is a thin restoration placed over tooth surfaces to improve aesthetics or protect damage. Veneers have a translucent quality giving a natural look. Tooth preparation is minimal, reducing enamel by 0.3-0.5mm with a close finish line. Impressions are taken and a try-in ensures proper fit before cementing. Follow-up appointments evaluate tissue response and margins while maintaining good oral hygiene protects the veneers. Bonding uses a micromechanical bond with hydrophilic resins to cement the veneers securely in place.
3. A veneer is a thin layer of
restorative material placed over
a tooth surface, either to
improve the aesthetics of a
tooth, or to protect a damaged
tooth surface.
It has a translucent quality
which means that they give a
natural looking tooth,
4.
5.
6. 1- Fractured tooth
2 -Intrinsic staining
3- In case of multiple teeth to
create a
"Hollywood“
type of makeover
4- Small teeth.
7. 6- In case of worn away the edges
of the teeth
7- Lengthen teeth that have been
shortened
by wear,
8- Fill the black triangles between
teeth .
9- Provide a uniform color, shape,
and symmetry,
and make the teeth appear
8. 12- Enamel hypoplasia
13- Closure of diastemas
14- Root exposure
15- Abrasion and erosion
16- Large pulp size
17- Anatomical maleform teeth
18- Tooth wear
9. 1-High caries index.
2- Poor plaque control.
3-Extensive existing restoration.
4-BruxximS.
5-Posterior teeth.
6-Edge to edge or cross bite.
7- Short teeth.
8- In case of orthodontics.
10. 9-Simulated straightening of the
teeth
for younger people with
healthy teeth
10- Crowding of misaligmed
teeth with inadquate enamel
present
11. 1. Esthetic .
2. Stain resistant and Stronge.
3. The color of a laminate
veneer can be selected such
that it makes dark teeth appear
whiter.
12. 5 . Minimal tooth preparation req
6. Color stability.
7-Resist abrasion.
8-Well tolerated by gingiva.
18. Keep in mind…
• Lengthening the tooth
requires special attention
during the preparation stage.
• The occlusion , especially the
anterior guidance, should be
very carefully evaluated.
• Palatally finishing preparation
lines can be applied and in
19. minimal and limited to enamel
of tooth.
-The enamel should be reduced
by 0.3-0.5 mm in a
conservative intraenamel
preparation.
-The finish line should be as
close to the gingiva as possible
, or slightly sub-givgival.
- However, no matter what the
condition is, cervical
preparation is essential to
display the laminate's normal
20.
21. Enamel has different
thicknesses at the
gingival, middle and
incisal 1/3rds of the
facial surface of the
tooth, so there
Two different-sized
depth
cutters (Komet
22. -Three-wheel
diamond depth
cutter , creats the
depth-orientation
groove (0.3) mm in
G half of the L.S.
-Three-wheel
diamond bur
(0.5)mm reduction
in incisal
-Remove tooth
23. There are two basic techniques for the placement
of the incisal finish line;
1)The first terminates the
prepared facial surface
at the incisal edge.
* There is no incisal reduction or
prep of the lingual
surface and it can be in the form
of a window or
24. (2) In the second
technique, the incisal edge is
slightly reduced and the
porcelain overlaps the incisal
edge, terminating on the
lingual surface.
* In a retrospective clinical
evaluation the two techniques
25. -Reduction
the proximal by
using the round-end. - open
the contacts area without
breaking.
- To correct an uneven
finish line,
ensure that the diamond is
parallel with the long
26. - Examination of the prepared
teeth is necessary.
-The dentist must be careful to
remove any sharp angles.
-Smooth margins that are fully
27.
28. -The retraction cord should be left
in place if possible during the
impression.
-Use a polysiloxane or polyether
material for the impression
- Or we can use A polyvinyl
siloxane impression material to
take a full arch impression.
29. -The tray is seated and the
material was allowed to set
completely before it’s
removed from the patient’s
mouth
-The opposing arch
impression is also taken in
a polyvinyl material
-A hard-setting occlusal
registration was taken bite
30. The veneers should first be tried-in
before they are
bonded to eliminate unexpected
surprises.
When the patient arrives for the final
appointment.
what to do :
- First anesthetized for the
comfort of the patient.
_ Clean with flouride free
31. -Frist do good isolation.
-Sparated with soft matrix strip.
-Etche 15 to 30 sec with 37%
phosphoric acid.
-Applied Boinding agent.
-Put thin lyer of luting agent.
-Apply veneer slightly without force.
-Excess cement is removed.
-Partial curing for 5 to 10 sce.
-Aemove of all excess.
-Veneer should be cured from
all directions for at least
32.
33. 1.Initial follow-up :
-Scheduled one week postcementation to evaluate tissue
response and margins,
-At 3-4 month intervals.
2.Clean it by brush and floss every
day for good oral hygiene.
3.Avoid using vertical strokes
during scaling,
4.Avoid the use of acidulated
36. Dentin bonding is a
micromechanical bond but
it is more complex and
difficult and Hydrophilic
Ceramics Bonding is .
resins must be used
micromechanical bond
