Esthetics Flashcards
Refers to:
- The philosophy study of beauty and taste
- The perception of the beautiful in nature and art
- Relating to the study of the principles of beauty
Esthetics
What are the 3 main categories of esthetics?
- Facial Esthetics
- DentoFacial Esthetics
- Dental Esthetics
_____ esthetics
- Occlusal Vertical Dimension
- Facial lower 1/3
- Lip Support
- Rickett’s “E” plane
- Nasolabial Angle
Facial Esthetics:
\_\_\_\_\_ esthetics \:-Smile Analysis -Anterior Tooth Display -Dental Midline -Occlusal Plane
DentoFacial Esthetics
\_\_\_\_\_ esthetics: \:-Width:Height proportion -Tooth:Tooth Proportion -Gingiva -Papilla height -Zeinth positions -Embrasures -Tooth Long axis
Dental Esthetics
Inner Canthus / Ala of nose corresponds to the width of what teeth?
Canine width
Fundamentally the ________ is simply a line drawn from the tip of
the nose to the tip of the chin. The key assessment was to look
at how the upper and lower lip related to that line.
“E” plane
Dr. Ricketts felt that to have a pleasing facial profile, in the average
Caucasian face, the lower lip would be ___mm behind the E line,
and the upper lip 4 mm behind the E line, with variations being
normal for patients of different ethnic backgrounds, but with
some commonalities applying to all patients.
2 mm (lower lip); 4 mm (upper lip)
Those commonalities would be that the _____ to the “E” plane the
lips are, in some cases even being anterior to the plane, the lips
and teeth will dominate the smile with the nose and chin
appearing weak. And the _______ the plane the lips are,
the more likely the nose and chin will dominate the smile.
closer; farther behind
_____ refers to the angle of the nose and lip
- Greater than 90 degrees = Convex
- Less than 90 degrees = Concave
Nasolabial angle
The incisal curvature parallels the curvature of the ____ lip when smiling
Lower lip
- Overall length of maxillary teeth are displayed
- Interproximal gingiva shows
- Incisal curvature parallels the lip curvature
- Incisal curvature totally or slightly touches lower lip (within 2mm)
- 6 Maxillary anterior and 2nd premolars are displayed
- Maxillary midline coincides with a harmonious balance of smile.
Smile Analysis:
-Incisal edges of the maxillary anterior teeth
-Parallels the inner curvature of the lower lip and
interpupillary line
-Perpendicular to the facial/dental midline
Incisal Curve (Smile line)
Full smile – lip moves to incisor tooth-gingiva
interface
-____% of young people show entire length of
central incisors
80%
Low Lip Line– Less than __% incisors showing with no
gingival display
75%
Women have ___ smile line twice as often as men
high
Central incisors and canines lie on the save curved
line
-Incisal edges of laterals are _____ of this
line
1.0mm short
T/F: -Incisal curve touches the lower lip
-or within 2mm
true
What are the 4 reasons for max excessive gingival display?
- Hyperactive lip
- Vertical Maxillary Excess
- Altered Passive Eruption
- Dentoalveolar Extrusion
- HyperActive Lip
- Normal movement ~ ____ mm
- Hyperactive ~ up to 2 times that movement
6-8mm
-over eruption of gingiva and bone due
conditions like tooth wear
Dentoalveolar extrusion
-a condition in which the free gingival
margin fails to recede during tooth
eruption to a level apical to the cervical
convexity of the clinical crown.
Altered Passive Eruption
Length of Maxillary incisor exposed when at rest
- average of ___ mm exposed in females
- average of ___mm exposed in males
- 5mm in females
2. 0 mm in males
Younger person average max anterior display: ____ mm
3.4 mm
Older person average max anterior display: ____ mm
1.25 mm
____ and ___ phonetics – Inner edge of vermillion border (wet-
dry line)
-Area used to determine position of incisal 1/3
of anterior maxillary incisors
-”F” and “V”
___ phonetics– Mandibular incisal edge is 1mm behind and
below maxillary incisal edge
-Used to determine vertical dimension of
speech
”S”
The maxillary midline ____ with the facial
midline and is ______ to the
interpupillary line.
Ideally, matching maxillary midline to mandibular
midline is preferred but not always possible.
coincides; perpendicular
A maxillary midline deviation of ___ mm was
necessary before orthodontists rated it
significantly less esthetic than the others.
-However, general dentists and lay people were
less likely to call a 4mm deviation unesthetic.
4 mm
Orthodontists, General Dentists, and
even lay people could identify a __mm
discrepancy in crown angulation.
2
– A plane extending from the inferior
border of the ala of the nose to the inferior point on
the border of the tragus
Camper’s line
The dental occlusal plane typically ____ with
Camper’s plane.
coincides
Is a facebow always the best way to determine if occlusal plane is in line with interpupillary line?
No
If there is a diastema or excess space that is desired to be closed in the anterior, what is the best treatment to be had to ensure closure of gaps without creating more gaps?
Ortho
Ideal width of central incisors is _____mm
8.5 - 9.0
Ideal height of central incisors is _____mm
10.5 -11 mm
A “pleasing” relationship between width
and height (length) is between ___- and ___%.
-Width divided by height (length).
75% - 85%
Ideally, there is a slight inclination of the
long axis of the teeth toward the _____
The incisal and occlusal segments of the
facial surfaces have _____ inclincation
midline; lingual
-Lingual inclination of posterior teeth can create “negative space” creating a noticeable and
unesthetic space or lack of space when a person smiles.
Buccal corridor
Interproximal contacts are situated more
______ from anterior to posterior
-
cervically
Embrasures become ______ from anterior to
posterior
larger
– Contact dimension between:
Central’s,
Centrals and Laterals,
Laterals and Canines
50:40:30 Rule
- Most gingival papilla proportions are around ___% of the tooth length.
- Shape of the teeth can impact embrasure and papilla height.
40
Gingival zenith of ____ and _____ are in a line parallel to
interpupillary line
central incisors and
canines
Zenith of Centrals and Laterals are ____ to tooth
vertical midline
distal
Zenith of Canines are _____ with vertical
midline.
in line
A comparative ratio used to determine sizes of maxillary anterior teeth. Central = 9mm Lateral - 9 x 0.618 = 5.56mm Canine – 5.56 x 0.618 = 3.44mm
Golden Proportion
Central incisors are ____ % width to length
79%
The lateral is ___% of central
65%
The canine is ___ % of lateral
85%
3 Common mistakes made when replacing
maxillary anterior teeth:
-Flat facial aspect of the central incisors
-Lateral incisor is too wide OR Lateral incisor is too
narrow
-Flat incisal plane
