direct and indirect veneer

4. Cosmetic dentistry
Cosmetic dentistry includes a variety of dental
treatments aimed at
improving the appearance of the teeth.
The purpose of cosmetic dentistry is to improve
the appearance of the
teeth using bleaching, bonding, veneers,
reshaping, orthodontics, or implants.

5. Indication
1. Discoloration 2. Trauma

6. 3. Anomalies 4. Abnormal spacing

7. Types of cosmetic dentistry :
A- Generally:
1. Prosthodontic 2. Periodontics

8. 3. Orthodontic

9. B- In operative:
1. Bleaching

10. 2. Veneer 3. Lumineer

11. Repairing procedures in operative:
Dental veneer
dental veneers are custom shells made from tooth colored
materials that facilitate covering the front surface of
the tooth and these are alternately known as dental
laminates. dental veneers are normally classified Under
cosmetic dentistry

12. Indications:
1. Improve extreme discolorations such as
tetracycline staining, fluorosis, devitalized teeth, and
teeth darkened from age.

13. 2. Repair chipped or fractured teeth.

14. 3. Closing of diastemas between teeth.

15. 4. Ability to
lengthen
anterior teeth.

16. 5. Improve the appearance of rotated or
misaligned teeth.

17. 6. Agenesis of the lateral incisor.

18. 7. Poor restorations.

19. Contraindication:
1. If little or no enamel is present, full crown should be
considered.
2. Certain tooth-to-tooth habits like bruxing or clenching, or other
para-functional habits such as pencil chewing or ice crushing.

20. 3. Teeth that exhibit severe crowding.

21. 4. Certain types of occlusal problems such as
Class III & end-to-end bites.

22. 5. Poor oral hygiene.
6. High caries rate.

23. ARTISTIC ELEMENTS:
Shape or form:
Masculine smile
More closed and prominent incisal
angles.
Feminine smile
Rounded incisal angles, open incisal and
facial embrasures and softened facial line
angles.
Prominent areas highlighted by light.
Depressed areas shadowed.

24. Position and alignment
Surface texture:
YOUNG TEETH AND OLD TEETH ANATOMICAL FEATURES
Color:
Cervical areas darker than incisal areas
Young patients-lighter teeth
Older- incisal edge enamel thinned due to wear and is darker
Translucency .
Clinical Considerations:
Esthetics and function
Anterior guidance and occlusal harmony
Physiologic contours
Emergence Profile

25. Types of veneers:
1. According to the design:
-Partial veneer.
-Full veneer.
2. According to the methods:
_Partial veneer:
*direct------------chair side composite resin.
_Full veneer:
*indirect-----------indirect composite resin, conventional porcelain.

26. Intra enamel preparation before placing a veneer is strongly recommended for the
following reasons:
1_To provide space for opaque, bonding
or veneering materials for maximal
esthetics without over contouring.
2_To remove the outer, fluoride-rich
layer of enamel that may be more
resistant to acid-etching.
3_To create a rough surface for
improved bonding .
4_To establish a definite finish line.

27. Two basic preparation designs exist for
full veneers :
1. a window preparation

28. 2. an incisal, lapping preparation.

29. Partial veneers:
Are indicated for the restoration of localized defects
or areas of intrinsic discoloration.
Direct composite veneer:
Extensive enamel hypoplasia involving all of the maxillary anterior teeth was
treated by direct composite veneers.
A diastema also exists between the central incisors. The patient desired to have
both the hypoplasia and the diastema corrected; examination indicated a good
prognosis.
A direct technique was used with a light-cured
micro fill composite.

30. Advantages of composite veneers:
One visit procedure
Less expensive
Repair potential
Chair-side control of the anatomy
Minimal irreversible loss of tooth structure.

31. Disadvantages of composite veneers:
Tend to discolor
Wear out quickly
Marginal staining
Shade matching difficulty
Often require repair and replacement

32. Technique for direct partial composite veneer:
Case presentation:

40. Full veneers
are indicated for the restoration of generalized defects or areas of intrinsic staining involving
most of the facial surface of the tooth.
indirect full veneer:
Indirect veneers require two appointment ,but typically offer three advantages over directly placed
full veneer:
1_Indirectly fabricated veneers are much less sensitive to operator technique. Indirect veneers are
made by a laboratory technician and are typically more esthetic.
2_If multiple teeth are to be veneered, indirect veneers usually can be placed much more
expeditiously.
3_Indirect veneers typically will last much longer than direct veneers,
especially if they are made of porcelain or pressed ceramic.

41. 1. indirect composite veneer:
Composite veneers can be processed in
laboratory to achieve superior
Properties.

42. Technique:
First Appointment
*Window preparation recommended due to limited bond strength.
*Incisal lapping if incisal defect.
*Intraenamel preparation.
*Elastomeric impressions.
*No temporization.

43. Second Appointment
*Evaluate fit of veneer.
*Tooth side of veneer (pre etched) is primed.
*Tooth etched, rinsed and dried. Adhesive is applied but not cured.
*Adhesive cement applied.
*Veneer placed and excess cement removed.
*Light cured for 40-60sec facial & lingual.
* Check for fit with no.2 explorer.

44. 2. Conventional Porcelain Veneers:
A conventional porcelain veneer is a thin piece of porcelain
that is bonded to the front of a tooth. Porcelain is a durable,
translucent, strong, natural-looking, and beautiful material.
The only difference in this procedure for porcelain veneers
from the composite veneers is the need to condition the
internal surface of each veneer with a silane primer just
before applying the resin-bonding agent

45. Advantages:
1- Very conservative.
2- Offer better inherent color and natural look.
3- Tissue tolerance is excellent.
4- Less staining.
5- The bond of etched porcelain veneer to enamel is stronger than other.
6- Wear and abrasion resistance is high.
7- The aesthetics are better than any other veneer material.
8- Porcelain veneer allow transmission of light.

46. Disadvantage:
1- Expensive.
2- Tooth preparation.
3- Highly sensitive technique.
4- Sensitivity.
5- It has number of limitation .

47. Technique
Case presentation:

48. First Appointment (VENEER PREPARATION
PROCEDURE)
Shade Selection-
 Clean teeth with pumice and water
 Select a tentative shade with your patient participating.
Tooth preparation-
A uniform 0.5mm intraenamel reduction is sufficient
 Preparations are extended to the gingival crest and into the interproximal
without breaking contact

51. Impression-

52. Temporary Veneers-

53. Second Appointment (VENEER
CEMENTATION PROCEDURE)
Remove temporary- Clinical try-in-

54. CEMENTATION