The document discusses various techniques for creating esthetic dental restorations through optical illusions, including: 1) Controlling factors like lighting, lines, and color to influence the perceived shape and size of teeth; 2) Using stains and grooves to make teeth appear thinner or wider; and 3) Arranging teeth during restorations to create more natural and balanced smiles. The goal is to balance illusion and reality through an understanding of perception, light, and color properties.

1. CREATING ESTHETIC
RESTORATIONS
PRESENTED BY :
DR. Supratim tripathi
TOOTH CARE DENTAL CLINIC ,
LUCKNOW, UTTAR PRADESH. INDIA.
7800302984

2. Introduction
Creating illusions is one of the most
important objectives of esthetic dentistry

3. Esthetics in dentistry requires the artistic skill of
balancing illusion with reality. This balance is
called perception – the aspect concerned with
visualization of the appearance.
The nature of the substance of the substance of
enamel and dentin and the color of gingiva
influence the ultimate color of the teeth.

4. Illusion is the art of changing the perception of
an object to appear different from what it is.
Illusion about size, shape and color can be
created to solve or hide an esthetically difficult
situation.
For this purpose one should understand factors
such as lighting perspective, rendering of texture
and use of colors that make the illusion possible.

5. PRINCIPLES OF ILLUSION
 Light has the ability to change the
appearance of a surface by its relation to that
form.
The relationship of lines plays an important
role in creating illusion.

6. COLOR
Properly used color creates atmosphere,
defines space and proportion and establishes
order.

7. To understand color and the nature of colors
following definitions are helpful :
 Hue : it is the name of the color.
 Chroma : it is the concentration of color. It represents the
saturation of a color
 Value : it is the degree of whiteness and blackness of the
color. Value is measured in variations of grey.
 Primary colors : these are red, yellow and blue.
 secondary colors : these are the blend of any two
primary colors

8. • Tints : these are intense colors that are typically
used to impart character.
• Shades : these are colors with quantam of black
added to a base color.
• Temperature : it refers to how warm or cool a
color appears to the eye.
Colors used interdentally can make the tooth look
narrow or wide and colors used incisally or at the
gingival inclines can make the tooth look elongated
or short.

9. Illusion cannot be created unless lighting
perspective has been mastered .
To achieve a successful esthetic
restoration one should have a working
knowledge of the properties of light and
its characteristics.

10. Light : is a form of radiant energy consisting
of electromagnetic waves including UV light ,
visible light and IR light.
Reflection : it refers to two types –
Diffused reflection : in which light waves
bounce off objects so that the observer
perceives the object rather than the light.
Regular Reflection : as in a mirror in which the
reflection of the object can be seen.

11.  Refraction : it is the bending of light rays as they
pass through one medium to another.
Deflection : it is the reflection of light from a surface
in a direction different from that of the entry.
Absorption : it is the phenomenon in which light is
absorbed fully or partly by the object.
 Metamerism : it is the phenomenon in which the
color of an object exposed to two different light sources
appears different under each condition.
 Opacity : it is the quality of an object by which it
absorbs or completely reflects all the light falling on its
surface.

12. Creating illusion depends on he control of light
reflection and color contrast on the surface of
the objects
 Increased contrast increases visibility .
Increased light reflection increases visibility.
Increased light deflection diminishes visibility.
Shadows create depth.
Light creates prominence.
vertical lines accent length.
horizontal lines accent width.

13. Staining
Staining is the final opportunity to enhance the
original shade and to correct and improve
restorations.
Color indications
yellow-orange Creates illusion of narrowness;
simulates craze lines.
yellow-brown masks blue tetracycline stains
blue, gray, violet simulates translucency, decreases
value or brightness
white increases the brightness; simulates craze
lines; simulates enamel hypo
calcifications; white spots
red, pink simulates gingival tones; enhances vitality;
masks blue tetracycline stains

14. Procedure
Tooth preparation
Cleaning of the tooth
Etching of the tooth

15. Applying opaquer
Place a thin layer as a base.
the opaquer layer masks any
stains or discolorations present
on the tooth surface.

16. Cervical layer
The composite of the
cervical shade is placed
from the gingival margin
and reduced in thickness
to a thin layer and merged
with the opaquer.

17. Body layer
this layer projects the
overall hue of the tooth
and so must be chosen
carefully. The layer is
blended over the cervical
layer placed , more over
the labial surface and
thinned down to the
incisal margin.

18. Applying Tints
Tints are translucent and
cover the spectrum with
fairly intense Chroma,
simulate general dentinal
colors
They are used to provide
subtle hue enhancements.

19. Incisal enamel
A microfilled composite
material representing the
enamel shade is placed
next, on to the incisal
third of the tooth.

20. Placement of proximal
enamel
to create the transitional
line angles that give the
third dimension to the
restoration a translucent
enamel shade is placed
on the proximal areas
from the cervical to the
incisal.

21. Finishing and Polishing
final finish to the
restoration is done along
with the polishing.

22. white calcification spots
running horizontally across the
middle third of the tooth
further accentuate width
staining used to create the
illusion of cervical erosion to
match the adjacent teeth

23. Check lines and
Interproximal restoration
staining has produced the
illusion of length.

24. LIGHT MICROCRACKS
SIMULATED
RESTORATION AND
HYPOCALCIFICATION
AREAS HELP CREATE A
MORE NATURAL AND
YOUTHFUL LOOK.
ORANGE STAINING IS
DONE HERE WHICH IS A
NATURAL
CHARACTERISTIC OF THE
OLDER DENTITION

25. SHAPING AND CONTOURING
The most frequent illusion is the creation of
a different outline by shaping or carving the
tooth

26. BASIC PRINCIPLES OF ILLUSION
CONCERNING SHAPE AND OUTLINE FORM
 Vertical lines accentuate height and de-emphasize
width
 Horizontal lines accentuate width and de-emphasize
height
 Shadows add depth
 Angles influence the perception of intersecting lines
 Curved lines and surfaces are softer ,more pleasing, and
perceived as more feminine than sharp angles

28. ARRANGEMENT OF TEETH
The second most frequently used technique
for creating illusions involves the
arrangement of the teeth being restored

29. ONE,TWO,THREE GUIDE
BY LOMBARDI

31. Creating ‘cracks’ and ‘micro-cracks’
A natural looking
micro-crack is added
by first applying a
broad band of the
selected shade of the
stain.
The flat edge‘micro-
The white of the
brush is used to achieve
cracks appear more
the desired thinness
esthetically
pleasing for a
younger patient

32. Problem : when the tooth is very wide and is
needed to appear thinner

33. Shallow developmental
grooves which break up
the smooth labial
reflecting surface make
the tooth appear less
wide
Final result

34. When space available is too wide, a
diastema is preferred

35. Problem : when the tooth is needed to appear wider than
its actually is
Horizontal
grooves were
carved into the
right central (1) to
give it a wider
appearance

36. Adding the masculine or the feminine appearance

37. A SMILE LINE THAT REVEALS
UNATTRACTIVE SPACES
A REMOVAL ARTIFICIAL TISSUE
APPLIANCE WAS MADE FOR
THIS WOMAN
ARTIFICIAL GUM APPLIANCE
IN PLACE.

38. LOST GUM TISSUE CAUSING
UNSIGHTLY SPACES AND
LENGHTENING OF THE
CROWN
SINCE ENOUGH ENAMEL
REMAINED ON HER
TEETH, THE OLDER
FILLINGSWERE REMOVED
AND COMPOSITE RESIN
BONDING WAS PLACED
AROUND THE NECKS OF
THE FRONT SIX TEETH.

39. SEVERE TISSUE LOSS
W.R.T. RIGHT CANINE
COSMETIC GUM
SURGERY CONSISTING
OF A GRAFT WAS USED
TO ENHANCE BOTH
FUNCTION AND
ESTHETICS