www.indiandentalacademy.com
Porcelain
Laminates
INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com
www.indiandent...
Table of contents
 Tooth preparation.
 Impression making.
 Shade selection.
 Provisional restoration.
www.indiandental...
www.indiandentalacademy.com
 Lab communication.
 Lab Fabrication.
 Try- in considerations.
 Luting of porcelain laminate veneers.
 Finishing and ...
Tooth preparation
9. Incisal preparation
If reduce, then how much??
A) window .
B) feather.
C) bevel .
D) incisal overlap....
Old concept
 1980s- the common trend was to preserve the incisal edge
in the interests of tissue conservation.
 higher n...
Recent concept
 complete coverage of the incisal edge.
advantages
 It restricts angle fractures.
 It enhances the esthe...
Tooth preparation
 The labial cusp(maxillary or mandibular)should be
reduced by at least 1 mm.
 The occlusal margin shou...
Impression making
 Materials
 Rubber base impression materials such as
addition silicones or polyether.
www.indiandental...
 Trays:
 Custom made or stock full arch impression trays
are used.
www.indiandentalacademy.com
www.indiandentalacademy.com
Embrasure blockout
www.indiandentalacademy.com
Inteproximal tear through margin.
www.indiandentalacademy.com
Embrasure blockout.
www.indiandentalacademy.com
Intact interproximal extension.
www.indiandentalacademy.com
Provisional restorations
 Usually not necessary.
 In several clinical situations,
provisionalization may be required.
ww...
 If excessive reduction is done to align the
tooth.
 To prevent supraeruption of the prepared
tooth.
 If isolated teeth...
 Materials that can be used for provisional
restorations:
Acrylics.(SNAP (PARKEL), TEMPLUS (ELLMAN)
,JET (LANG) , DURCALA...
 Techniques :
Direct technique.( acrylic, composites)
Indirect technique. (acrylic, composites)
www.indiandentalacademy.c...
 Direct technique ( acrylic resin).
JPD 1989;2;4;139
www.indiandentalacademy.com
 FACIAL IMPRESSION
OF PROPOSED SITE IS
MADE ON A TONGUE
BLADE USIND
IRREVRSIBLE
HYDROCOLLOID
IMPRESSION
MATERIAL.
 IMPRE...
 PREPARE THE TOOTH
FOR LAMINATE
RESTORATION,
 USING NO. 2 ROUND
BUR MAKE
RETENTIVE DIMPLES
ON MESIAL AND
DISTAL AXIAL
WA...
 WET THE TREATMENT
SURFACE WITH
EXACTLY ONE DROP OF
ACRYLIC RESIN
MONOMER.
 USING SPEEDI TEMP
POLYMER RESIN
BLOWER APPLY...
 RESIN WILL
SUFFICIENTLY
PENETRATE THE
DIMPLES
 AS ACRYLIC RESIN IS
APPLIED SPARINGLY
ONLY SMALL EXCESS
WILL BE EXPRESSE...
DIRECT TECHNIQUE
 ( J. ESTHET RESTOR DENT 2001,13;115-
119)
www.indiandentalacademy.com
STOCK TRAY IMPRESSION MADE
PRIOR TO TOOTH PREPRATION
USING BITE REGISTRATION
MATERIAL ( REGISIL RIGID,
DENTSPLY )
www.indi...
 VENEER PREPRATION ACCOMPLISHED WITH SLIGHT
SUPRAGINGIVAL MARGINS
 SELF ETCHING DENTIN – ENAMEL ADHESIVE SYSTEM
(PROMPT ...
TEMPHASE (KERR CORP. ) – TWO
COMPONENT ( CATALYST AND BASE
) BIS- METHYACRYL HYBRID
TEMPORARY CROWN AND BRIDGE
MATERIAL
...
 IMPRESSION IS REMOVED
AND THE RESIN REMAINING
ON THE TEETH IS EXPOSED
TO VISIBLE WAVELEGNTH
CURING LIGHT
 USING CARBIDE...
 Indirect method:(composites)
www.indiandentalacademy.com
www.indiandentalacademy.com
www.indiandentalacademy.com
BONDING OF PROVISIONAL
RESTORATION
 Composites.
 Provisional Non- eugenol cements.
www.indiandentalacademy.com
THINGS NEEDED FOR GOOD
COMMUNICATION ARE.
 Laboratory prescription.
 Pretreatment models.
 Photographs of the teeth.
 ...
Lab prescription.
 A complete lab prescription consists of the
following:
 1. shade of the prepared teeth.
 2. shade of...
Shade selection
 Because ceramic veneers are thin, color
from the underlying tooth may alter the
final veneer shade.
 Wi...
 Shade of the prepared
tooth:
www.indiandentalacademy.com
 Shade gradation of the veneer:
www.indiandentalacademy.com
 Die spacer:
0.1 mm die spacer for two- shade shift.
0.2mm for profoundly stained teeth.
www.indiandentalacademy.com
 Translucency and opacity levels:
 Use of highly opaque porcelain gives
non-vital look.
 Trend is to use translucent an...
Length, contacts and incisal shape:
 Veneer length relative to the prepared tooth.
 Contact zone (long or short)
 Tooth...
Communication with desired contour
and tooth shape.
www.indiandentalacademy.com
Lab fabrication
 Platinum foil technique.
 Refractory die technique.
 Direct casting
 CAD-CAM technique
www.indiandent...
Platinum foil technique
www.indiandentalacademy.com
 Stone working model seperating dies
www.indiandentalacademy.com
Die spacer
www.indiandentalacademy.com
Platinum foil adapted on the die
www.indiandentalacademy.com
www.indiandentalacademy.com
APPLY GINGIVAL CERAMICS
www.indiandentalacademy.com
Apply dentine porcelain.
www.indiandentalacademy.com
Cutting back mesial and distal
surfaces for enamel porcelain
www.indiandentalacademy.com
Application of enamel porcelain.
www.indiandentalacademy.com
Yellow stains on the incisal edges
www.indiandentalacademy.com
Completed veneer
www.indiandentalacademy.com
The veneers should be colored and
glazed prior to foil removal.
www.indiandentalacademy.com
Refractory die technique.
 Advantages:
1. Overall accuracy and fit is generally
better.
2. Easier technique.
www.indiande...
 Disadvantages:
1.Requires duplication of stone dies.
2.Divestment is required.
3.Fit must be verified on stone dies.
4.M...
 Refractory cast trimmed with stone base.
www.indiandentalacademy.com
Dies are placed in the ceramic oven.
www.indiandentalacademy.com
Cooled to room temperature and
soaked in distilled water.
www.indiandentalacademy.com
Application of the opaque layer.
www.indiandentalacademy.com
Full contour ceramic buildup.
www.indiandentalacademy.com
Contouring the veneers on the dies.
www.indiandentalacademy.com
Disc used to cut the veneer away
from the die.
www.indiandentalacademy.com
Excess is removed from the stone.
www.indiandentalacademy.com
Air abraded.
www.indiandentalacademy.com
www.indiandentalacademy.com
Porcelain etching
 Hydrofluoric acid is applied to the fitting
surface of the veneer.
 Provides good bonding strength by...
Apply wax to the areas
not etched
www.indiandentalacademy.com
Internal bonding surface etched with
hydrofluoric acid.
www.indiandentalacademy.com
Properly etched-
foggy appearance
www.indiandentalacademy.com
Under etched-
shiny appearance
www.indiandentalacademy.com
 Swift B et al., (BDJ 1995; 179: 203-20)
 Do not place the etched veneers back on the
master cast because it will contam...
Veneer try-in
www.indiandentalacademy.com
Chair side try- in.
 Three steps:
1.Dry try-in of individual veneer for marginal fit.
2.Wet try-in of all veneers collect...
Dry try-in for marginal fit.
 Place the gingival retraction cord
subgingivally to prevent sulcular moisture
or bleeding f...
Each veneer is placed dry on the
prepared tooth to check marginal fit.
www.indiandentalacademy.com
Wet try-in for proximal fit.
 Fill the internal etched surface with water
soluble glycerin to minimize dislodgement
if a ...
www.indiandentalacademy.com
All veneers are seated to check the
marginal fit.
www.indiandentalacademy.com
Veneer try-in for color and color
modifications.
www.indiandentalacademy.com
 If the try-in is lighter than a intended
shade.
 Use resin cement that is darker or
approximately same degree.
www.indi...
 If it is darker than the intended shade
 Mix one part of light opaque resin cement
with ten parts of light translucent ...
If generalised polychromatic
shade modification needed
only for a portion of veneer .
www.indiandentalacademy.com
 High chroma composite tint on inner gingival
surface.
www.indiandentalacademy.com
 Grey tint on the inner incisal third.
www.indiandentalacademy.com
TRADE NAMES OF RESIN
CEMENTS.
 NEXUS (KERR)
 PVS PORCELAIN BONDING
 KIT(JELENKO)
 INSURE (COSMODENT)
 COMPOLUTE (ESPE...
 VENEER LUTING AGENT (BISCO)
 RECOVER(TELEDYNE GETZ )
 MIRAGE FLC(CHAMELEON)
 RELY X VENEER CEMENT(3 M
ESPE)
www.india...
Cementation and finishing
 Good moisture control is necessary.
www.indiandentalacademy.com
Gingival retraction
 Gingival cords:
•Retraction cord is of great help to prevent
contamination from gingival crevice
www...
 Gingval cords come in
different sizes:
 Ultrapak plain and
ultrapak E (epinephrine
impregnated)
 Knitted.
 # 00,#0,#1...
Veneer preparation.
 Ultrasonically clean
the veneer in acetone
for 5 mins
www.indiandentalacademy.com
Dry thoroughly and apply silane
coupling agent
www.indiandentalacademy.com
Tooth preparation.
www.indiandentalacademy.com
CLEAN TOOTH WITH PUMICE
www.indiandentalacademy.com
Check interproximal contacts of the
teeth using metal strips(0.0005’’)
www.indiandentalacademy.com
PASSING OF ULTRA THIN DIAMOND
COATED METAL STRIP TO LIGHTEN THE
CONACTS
www.indiandentalacademy.com
METAL STRIP PLACED
www.indiandentalacademy.com
LOADING VENEER WITH RESIN
CEMENT
www.indiandentalacademy.com
SEATING THE VENEER
www.indiandentalacademy.com
VENEER CARRYING STICKS
(GRAB IT-CHAMELEON
DENTAL PRODUCTS)
www.indiandentalacademy.com
EXCESS CEMENT
www.indiandentalacademy.com
REMOVING EXCESS RESIN
www.indiandentalacademy.com
REMOVING EXCESS
CEMENT FROM
LINGUAL MARGIN
www.indiandentalacademy.com
VENEER TACKED BY LIGHT
CURING A SMALL SEGMENT
www.indiandentalacademy.com
REMOVE ANY EXCESS LEFT
www.indiandentalacademy.com
www.indiandentalacademy.com
CURED RESIN CEMENT EXCESS
REMOVE
LONG POINTED 30
FLUTED CARBIDE BUR
SCALER OR CURETTE
www.indiandentalacademy.com
FINISHING STRIPS-
REMOVE INTERPROXIMAL
EXCESS
www.indiandentalacademy.com
ADJUST OCCLUSAL CONTACTS
www.indiandentalacademy.com
POLISH USING CERAMIC
POLISHING RUBBER CUPS
www.indiandentalacademy.com
www.indiandentalacademy.com
Failures
www.indiandentalacademy.com
Failures
 between resin and veneer is likely due to poor
etch of veneer or old silane
 between tooth and resin the probl...
 To re-bond a veneer all resin must be removed
from the veneer. This is done in the lab by heating
to 600* C and re-etchi...
Newer clinical applications
www.indiandentalacademy.com
www.indiandentalacademy.com
Differences between lumineer and traditional
laminates
Laminates
1. More tooth preparation
2. Not reversible
3. Anesthesia...
www.indiandentalacademy.com
refereneces
1PORCELAIN LAMINATE
VENEERS:GRABER,GOLDSTEIN,FEIN
MAN
2.THE SCIENCE AND ART OF DENTAL
CERAMICS:JOHN W. McLEAN(...
4.FUNDAMENTALS OF ESTHETICS:CLAUDE
R. RUFENACHT
5.CONTEMPORARY ESTHETIC
DENTISTRY:BRUCE J. CRISPIN
6.PORCELAIN LAMINATE VE...
6.A PROVISIONAL RESTORATION
TECHNIQUE FOR LAMINATE
VENEER PREPARATIONS:(JPD
1989:62:139-142)
7.ADVANTAGES AND LIMITATIONS
...
9.THE SCIENCE AND ART OF DENTAL
CERAMICS:J.W.MCLEAN:
(J.OPERATIVE
DENTISTRY:1991:16:149-156)
10.REMOVAL OF PARTIAL OR FULL...
11.COMPARISON OF FIT OF
PORCELAIN VENEERS
FABRICATED USING
DIFFERENT TECHNIQUES:IJP
1993:6:36-42
12.CASE SELECTION FOR
PLV...
13.A REVIEW OF ALL CERAMIC
RESTORATIONS:JADA 1997:128:297-307
14.FIVE YEAR CLINICAL PERFORMANCE
OF PORCELAIN VENEERS:QUINT...
www.indiandentalacademy.com
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Porcelain laminate veneers /dentist lab technician

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Porcelain laminate veneers /dentist lab technician

  1. 1. www.indiandentalacademy.com
  2. 2. Porcelain Laminates INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  3. 3. Table of contents  Tooth preparation.  Impression making.  Shade selection.  Provisional restoration. www.indiandentalacademy.com
  4. 4. www.indiandentalacademy.com
  5. 5.  Lab communication.  Lab Fabrication.  Try- in considerations.  Luting of porcelain laminate veneers.  Finishing and polishing  Failures  Lumineers  Conclusion  References. www.indiandentalacademy.com
  6. 6. Tooth preparation 9. Incisal preparation If reduce, then how much?? A) window . B) feather. C) bevel . D) incisal overlap. www.indiandentalacademy.com
  7. 7. Old concept  1980s- the common trend was to preserve the incisal edge in the interests of tissue conservation.  higher number of fractures observed. Why????  Where the free edge is not overlaid, the occlusal third of the laminate veneer is often very thin (less than 0.3 mm).  When the teeth are very slender, the difference in resilience between the prepared natural tooth and the laminate veneer can, under certain occlusal constraints, lead to cracking or fracturing of the ceramic. www.indiandentalacademy.com
  8. 8. Recent concept  complete coverage of the incisal edge. advantages  It restricts angle fractures.  It enhances the esthetic properties of laminate veneers.  It enables occlusion to be adjusted.  It facilitates handling and positioning of the laminate veneer at try-in and, in particular, during bonding.  It enables the margin to be placed outside the area of occlusal impact. www.indiandentalacademy.com
  9. 9. Tooth preparation  The labial cusp(maxillary or mandibular)should be reduced by at least 1 mm.  The occlusal margin should be placed away from the occlusal contact and grooves The overlay extends to the occlusal three-quarters of the labial cusp, the margin being produced with a spherical bur and connected with the proximal margins by a rounded angle. Premolar : www.indiandentalacademy.com
  10. 10. Impression making  Materials  Rubber base impression materials such as addition silicones or polyether. www.indiandentalacademy.com
  11. 11.  Trays:  Custom made or stock full arch impression trays are used. www.indiandentalacademy.com
  12. 12. www.indiandentalacademy.com
  13. 13. Embrasure blockout www.indiandentalacademy.com
  14. 14. Inteproximal tear through margin. www.indiandentalacademy.com
  15. 15. Embrasure blockout. www.indiandentalacademy.com
  16. 16. Intact interproximal extension. www.indiandentalacademy.com
  17. 17. Provisional restorations  Usually not necessary.  In several clinical situations, provisionalization may be required. www.indiandentalacademy.com
  18. 18.  If excessive reduction is done to align the tooth.  To prevent supraeruption of the prepared tooth.  If isolated teeth are prepared.  High esthetic expectations. www.indiandentalacademy.com
  19. 19.  Materials that can be used for provisional restorations: Acrylics.(SNAP (PARKEL), TEMPLUS (ELLMAN) ,JET (LANG) , DURCALAY (RELIANCE) Composites.( Revotec, Protemp Grant, Unifast L C) www.indiandentalacademy.com
  20. 20.  Techniques : Direct technique.( acrylic, composites) Indirect technique. (acrylic, composites) www.indiandentalacademy.com
  21. 21.  Direct technique ( acrylic resin). JPD 1989;2;4;139 www.indiandentalacademy.com
  22. 22.  FACIAL IMPRESSION OF PROPOSED SITE IS MADE ON A TONGUE BLADE USIND IRREVRSIBLE HYDROCOLLOID IMPRESSION MATERIAL.  IMPRESSION CAN BE OBTAINED FROM PATIENT OR FROM AN ESTHETICALLY ALTERED DIAGNOSTIC CAST www.indiandentalacademy.com
  23. 23.  PREPARE THE TOOTH FOR LAMINATE RESTORATION,  USING NO. 2 ROUND BUR MAKE RETENTIVE DIMPLES ON MESIAL AND DISTAL AXIAL WALLS, 1mm ABOVE THE CONTACT AREA. www.indiandentalacademy.com
  24. 24.  WET THE TREATMENT SURFACE WITH EXACTLY ONE DROP OF ACRYLIC RESIN MONOMER.  USING SPEEDI TEMP POLYMER RESIN BLOWER APPLY ACRYLIC RESIN POLYMER.  REPOSITION THE IMPRESSION NTRAORALLY. www.indiandentalacademy.com
  25. 25.  RESIN WILL SUFFICIENTLY PENETRATE THE DIMPLES  AS ACRYLIC RESIN IS APPLIED SPARINGLY ONLY SMALL EXCESS WILL BE EXPRESSED OUTSIDE  PROVISIONALS ARE FINISHED AND POLSIHED www.indiandentalacademy.com
  26. 26. DIRECT TECHNIQUE  ( J. ESTHET RESTOR DENT 2001,13;115- 119) www.indiandentalacademy.com
  27. 27. STOCK TRAY IMPRESSION MADE PRIOR TO TOOTH PREPRATION USING BITE REGISTRATION MATERIAL ( REGISIL RIGID, DENTSPLY ) www.indiandentalacademy.com
  28. 28.  VENEER PREPRATION ACCOMPLISHED WITH SLIGHT SUPRAGINGIVAL MARGINS  SELF ETCHING DENTIN – ENAMEL ADHESIVE SYSTEM (PROMPT L-POP ESPE AMERICA INC.) WAS APPLIED www.indiandentalacademy.com
  29. 29. TEMPHASE (KERR CORP. ) – TWO COMPONENT ( CATALYST AND BASE ) BIS- METHYACRYL HYBRID TEMPORARY CROWN AND BRIDGE MATERIAL LOADED IMRESSION IS SEATED OVER THE PREPARED TEETH HELD IN PLACE TILL THOROUGHLY CURED . www.indiandentalacademy.com
  30. 30.  IMPRESSION IS REMOVED AND THE RESIN REMAINING ON THE TEETH IS EXPOSED TO VISIBLE WAVELEGNTH CURING LIGHT  USING CARBIDE FINISHING BURS, FLASH IS REMOVED  OCCLUSION IS CHECKED AND ADJUSTED , PROVISIONALS ARE POLISHED USING CONVENTIONAL COMPOSITE POLISHING KIT www.indiandentalacademy.com
  31. 31.  Indirect method:(composites) www.indiandentalacademy.com
  32. 32. www.indiandentalacademy.com
  33. 33. www.indiandentalacademy.com
  34. 34. BONDING OF PROVISIONAL RESTORATION  Composites.  Provisional Non- eugenol cements. www.indiandentalacademy.com
  35. 35. THINGS NEEDED FOR GOOD COMMUNICATION ARE.  Laboratory prescription.  Pretreatment models.  Photographs of the teeth.  Accurate impressions. www.indiandentalacademy.com
  36. 36. Lab prescription.  A complete lab prescription consists of the following:  1. shade of the prepared teeth.  2. shade of the veneer: cervical, body, incisal.  3. appropriate interface space in die spacer coats.  4. veneer length, contacts, incisal shape. www.indiandentalacademy.com
  37. 37. Shade selection  Because ceramic veneers are thin, color from the underlying tooth may alter the final veneer shade.  Without prescribing the background of the tooth to be veneered it is difficult to select the shade of the veneer. www.indiandentalacademy.com
  38. 38.  Shade of the prepared tooth: www.indiandentalacademy.com
  39. 39.  Shade gradation of the veneer: www.indiandentalacademy.com
  40. 40.  Die spacer: 0.1 mm die spacer for two- shade shift. 0.2mm for profoundly stained teeth. www.indiandentalacademy.com
  41. 41.  Translucency and opacity levels:  Use of highly opaque porcelain gives non-vital look.  Trend is to use translucent and highly characterized porcelain combined with increased die spacing. www.indiandentalacademy.com
  42. 42. Length, contacts and incisal shape:  Veneer length relative to the prepared tooth.  Contact zone (long or short)  Tooth shape( tapered, square)  Incisal shape (round, square, variable). www.indiandentalacademy.com
  43. 43. Communication with desired contour and tooth shape. www.indiandentalacademy.com
  44. 44. Lab fabrication  Platinum foil technique.  Refractory die technique.  Direct casting  CAD-CAM technique www.indiandentalacademy.com
  45. 45. Platinum foil technique www.indiandentalacademy.com
  46. 46.  Stone working model seperating dies www.indiandentalacademy.com
  47. 47. Die spacer www.indiandentalacademy.com
  48. 48. Platinum foil adapted on the die www.indiandentalacademy.com
  49. 49. www.indiandentalacademy.com
  50. 50. APPLY GINGIVAL CERAMICS www.indiandentalacademy.com
  51. 51. Apply dentine porcelain. www.indiandentalacademy.com
  52. 52. Cutting back mesial and distal surfaces for enamel porcelain www.indiandentalacademy.com
  53. 53. Application of enamel porcelain. www.indiandentalacademy.com
  54. 54. Yellow stains on the incisal edges www.indiandentalacademy.com
  55. 55. Completed veneer www.indiandentalacademy.com
  56. 56. The veneers should be colored and glazed prior to foil removal. www.indiandentalacademy.com
  57. 57. Refractory die technique.  Advantages: 1. Overall accuracy and fit is generally better. 2. Easier technique. www.indiandentalacademy.com
  58. 58.  Disadvantages: 1.Requires duplication of stone dies. 2.Divestment is required. 3.Fit must be verified on stone dies. 4.More difficult to control veneer thickness. www.indiandentalacademy.com
  59. 59.  Refractory cast trimmed with stone base. www.indiandentalacademy.com
  60. 60. Dies are placed in the ceramic oven. www.indiandentalacademy.com
  61. 61. Cooled to room temperature and soaked in distilled water. www.indiandentalacademy.com
  62. 62. Application of the opaque layer. www.indiandentalacademy.com
  63. 63. Full contour ceramic buildup. www.indiandentalacademy.com
  64. 64. Contouring the veneers on the dies. www.indiandentalacademy.com
  65. 65. Disc used to cut the veneer away from the die. www.indiandentalacademy.com
  66. 66. Excess is removed from the stone. www.indiandentalacademy.com
  67. 67. Air abraded. www.indiandentalacademy.com
  68. 68. www.indiandentalacademy.com
  69. 69. Porcelain etching  Hydrofluoric acid is applied to the fitting surface of the veneer.  Provides good bonding strength by partly dissolving the glassy matrix of the porcelain. www.indiandentalacademy.com
  70. 70. Apply wax to the areas not etched www.indiandentalacademy.com
  71. 71. Internal bonding surface etched with hydrofluoric acid. www.indiandentalacademy.com
  72. 72. Properly etched- foggy appearance www.indiandentalacademy.com
  73. 73. Under etched- shiny appearance www.indiandentalacademy.com
  74. 74.  Swift B et al., (BDJ 1995; 179: 203-20)  Do not place the etched veneers back on the master cast because it will contaminate their fitting surfaces and adversely affect bonding strength. www.indiandentalacademy.com
  75. 75. Veneer try-in www.indiandentalacademy.com
  76. 76. Chair side try- in.  Three steps: 1.Dry try-in of individual veneer for marginal fit. 2.Wet try-in of all veneers collectively with a clear liquid medium, for proximal fit. 3.Resin cement try-in. www.indiandentalacademy.com
  77. 77. Dry try-in for marginal fit.  Place the gingival retraction cord subgingivally to prevent sulcular moisture or bleeding from contaminating the surface.  Try each veneer individually in dry to determine marginal accuracy. www.indiandentalacademy.com
  78. 78. Each veneer is placed dry on the prepared tooth to check marginal fit. www.indiandentalacademy.com
  79. 79. Wet try-in for proximal fit.  Fill the internal etched surface with water soluble glycerin to minimize dislodgement if a vertical position is assumed.  Try veneers on appropriate teeth in sequential manner.  If the veneer resists seating remove the veneer and carefully reduce using microfine diamond bur. www.indiandentalacademy.com
  80. 80. www.indiandentalacademy.com
  81. 81. All veneers are seated to check the marginal fit. www.indiandentalacademy.com
  82. 82. Veneer try-in for color and color modifications. www.indiandentalacademy.com
  83. 83.  If the try-in is lighter than a intended shade.  Use resin cement that is darker or approximately same degree. www.indiandentalacademy.com
  84. 84.  If it is darker than the intended shade  Mix one part of light opaque resin cement with ten parts of light translucent resin cement. www.indiandentalacademy.com
  85. 85. If generalised polychromatic shade modification needed only for a portion of veneer . www.indiandentalacademy.com
  86. 86.  High chroma composite tint on inner gingival surface. www.indiandentalacademy.com
  87. 87.  Grey tint on the inner incisal third. www.indiandentalacademy.com
  88. 88. TRADE NAMES OF RESIN CEMENTS.  NEXUS (KERR)  PVS PORCELAIN BONDING  KIT(JELENKO)  INSURE (COSMODENT)  COMPOLUTE (ESPE)  VIRIOLINK (VIVADENT) www.indiandentalacademy.com
  89. 89.  VENEER LUTING AGENT (BISCO)  RECOVER(TELEDYNE GETZ )  MIRAGE FLC(CHAMELEON)  RELY X VENEER CEMENT(3 M ESPE) www.indiandentalacademy.com
  90. 90. Cementation and finishing  Good moisture control is necessary. www.indiandentalacademy.com
  91. 91. Gingival retraction  Gingival cords: •Retraction cord is of great help to prevent contamination from gingival crevice www.indiandentalacademy.com
  92. 92.  Gingval cords come in different sizes:  Ultrapak plain and ultrapak E (epinephrine impregnated)  Knitted.  # 00,#0,#1,#2. www.indiandentalacademy.com
  93. 93. Veneer preparation.  Ultrasonically clean the veneer in acetone for 5 mins www.indiandentalacademy.com
  94. 94. Dry thoroughly and apply silane coupling agent www.indiandentalacademy.com
  95. 95. Tooth preparation. www.indiandentalacademy.com
  96. 96. CLEAN TOOTH WITH PUMICE www.indiandentalacademy.com
  97. 97. Check interproximal contacts of the teeth using metal strips(0.0005’’) www.indiandentalacademy.com
  98. 98. PASSING OF ULTRA THIN DIAMOND COATED METAL STRIP TO LIGHTEN THE CONACTS www.indiandentalacademy.com
  99. 99. METAL STRIP PLACED www.indiandentalacademy.com
  100. 100. LOADING VENEER WITH RESIN CEMENT www.indiandentalacademy.com
  101. 101. SEATING THE VENEER www.indiandentalacademy.com
  102. 102. VENEER CARRYING STICKS (GRAB IT-CHAMELEON DENTAL PRODUCTS) www.indiandentalacademy.com
  103. 103. EXCESS CEMENT www.indiandentalacademy.com
  104. 104. REMOVING EXCESS RESIN www.indiandentalacademy.com
  105. 105. REMOVING EXCESS CEMENT FROM LINGUAL MARGIN www.indiandentalacademy.com
  106. 106. VENEER TACKED BY LIGHT CURING A SMALL SEGMENT www.indiandentalacademy.com
  107. 107. REMOVE ANY EXCESS LEFT www.indiandentalacademy.com
  108. 108. www.indiandentalacademy.com
  109. 109. CURED RESIN CEMENT EXCESS REMOVE LONG POINTED 30 FLUTED CARBIDE BUR SCALER OR CURETTE www.indiandentalacademy.com
  110. 110. FINISHING STRIPS- REMOVE INTERPROXIMAL EXCESS www.indiandentalacademy.com
  111. 111. ADJUST OCCLUSAL CONTACTS www.indiandentalacademy.com
  112. 112. POLISH USING CERAMIC POLISHING RUBBER CUPS www.indiandentalacademy.com
  113. 113. www.indiandentalacademy.com
  114. 114. Failures www.indiandentalacademy.com
  115. 115. Failures  between resin and veneer is likely due to poor etch of veneer or old silane  between tooth and resin the problem is bonding materials, placement technique, bonding substrate www.indiandentalacademy.com
  116. 116.  To re-bond a veneer all resin must be removed from the veneer. This is done in the lab by heating to 600* C and re-etching, washing, drying, and re-silanating the veneer Failures  Etch with 9.5% hydrofluoric acid for 4 mins. or 1.23% acidulated phosphate fluoride, or air abrasion with 50mu aluminum oxide  wash, dry, silanate  then use conventional bond/C.R. system www.indiandentalacademy.com
  117. 117. Newer clinical applications www.indiandentalacademy.com
  118. 118. www.indiandentalacademy.com
  119. 119. Differences between lumineer and traditional laminates Laminates 1. More tooth preparation 2. Not reversible 3. Anesthesia needed. 4. gingival cord placement 5. Temporaries needed. 6. 0.5 to 0.75mm thickness Lumineers 1. No or minimal preparation 2. Reversible 3. No anesthesia 4. No gingival cord 5. No temporaries 6. 0.2mm thickness www.indiandentalacademy.com
  120. 120. www.indiandentalacademy.com
  121. 121. refereneces 1PORCELAIN LAMINATE VENEERS:GRABER,GOLDSTEIN,FEIN MAN 2.THE SCIENCE AND ART OF DENTAL CERAMICS:JOHN W. McLEAN(VOL.I AND II) 3.PORCELAIN LAMINATE VENEERS FOR DENTISTS AND TECHNICIANS:ROGER J. SMALESwww.indiandentalacademy.com
  122. 122. 4.FUNDAMENTALS OF ESTHETICS:CLAUDE R. RUFENACHT 5.CONTEMPORARY ESTHETIC DENTISTRY:BRUCE J. CRISPIN 6.PORCELAIN LAMINATE VENEERS:A PRELIMINARY REVIEW(BDJ 1988:9:9-14) www.indiandentalacademy.com
  123. 123. 6.A PROVISIONAL RESTORATION TECHNIQUE FOR LAMINATE VENEER PREPARATIONS:(JPD 1989:62:139-142) 7.ADVANTAGES AND LIMITATIONS OF PLV:(JPD:1990:64:406-411) 8.PREDICTABILITY OF COLOUR MATCHING :(JPD 1991:65:619-22 www.indiandentalacademy.com
  124. 124. 9.THE SCIENCE AND ART OF DENTAL CERAMICS:J.W.MCLEAN: (J.OPERATIVE DENTISTRY:1991:16:149-156) 10.REMOVAL OF PARTIAL OR FULLY POLYMERISED RESIN FROM PORCELAIN VENEERSJPD 1993:69:443-444) www.indiandentalacademy.com
  125. 125. 11.COMPARISON OF FIT OF PORCELAIN VENEERS FABRICATED USING DIFFERENT TECHNIQUES:IJP 1993:6:36-42 12.CASE SELECTION FOR PLV:QUINT INT;1995;26;311-315 www.indiandentalacademy.com
  126. 126. 13.A REVIEW OF ALL CERAMIC RESTORATIONS:JADA 1997:128:297-307 14.FIVE YEAR CLINICAL PERFORMANCE OF PORCELAIN VENEERS:QUINT INT :1998:29:211-221) 15.VITAPAN 3D-MASTER:THEORY AND PRACTICE:QDT:1999;43-53 www.indiandentalacademy.com
  127. 127. www.indiandentalacademy.com

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