2. Esthetics and Anterior Tooth Preparation Flashcards
Factors of Esthetic Composition
wFour factors n \_\_\_\_ and reference n Proportion and idealism n \_\_\_\_ n Perspective and illusion
wAssist in determining n Tooth \_\_\_\_ n Tooth size n Tooth \_\_\_\_ n Orientation to face
frame
symmetry
display
arrangement
Frame and Reference wTeeth must harmonize with 3 frames: n \_\_\_\_ n Lips n \_\_\_\_
wThere are different reference lines
n ____ n Vertical
n ____
face
gingiva
horizontal
sagittal
Vertically, face is organized around facial ____
Horizontally, ____ reference lines perpendicular to midline create an organized network
midline
several
Frame and Reference
Horizontal Reference Lines
w ____ line
____ line
interpupillary
lip
Frame and Reference
Horizontal Reference Lines
wInterpupillary line serves to evaluate orientation of: n \_\_\_\_ n Gingival margins n \_\_\_\_
incisal plane
maxilla
Frame and Reference
Horizontal Reference Lines
Slant of incisal plane caused by inclination of ____
-Gingival plane follows direction of ____ (needs surgical correction)
- Severe misalignment of incisal plane
- ____ treatment needed
maxilla
maxilla
multidisciplinary
Frame and Reference
Horizontal Reference Lines
wLip lines
n Length and curvature of lips significantly influences amount of ____ at rest and in function
n Average maxillary incisor display with lips at rest
l____mm in men
l____mm in women n More tooth display in
____ smiles
lMany older patients prefer a more youthful smile
tooth exposure
1.91
3.40
youthful
Frame and Reference
Horizontal Reference Lines
wUpper lip line serves to evaluate:
n Length of ____ exposed at rest and during smile
n ____ position of the gingival margins during smile
maxillary incisor
vertical
Frame and Reference
Horizontal Reference Lines
wLower lip line serves to evaluate:
n Buccolingual position of the incisal edge of ____ incisors
n Curvature of the ____
lIncisal plane follows ____ line during smiling
maxillary
incisal plane
lower lip
Frame and Reference
Horizontal Reference Lines
wWhen incisal edges of canines and central incisors are aligned on a convexity, incisal plane is ____
w Esthetically pleasing
Progression of size of incisal embrasures from central incisors to ____ (youthful appearance)
convex
canines
Frame and Reference
Horizontal Reference Lines
wWhen incisal edges of canines and central incisors are aligned, but longer than ____, incisal plane has ____ smile line
w Esthetically pleasing
Gull wing, ____, and ____ are esthetically pleasing
lateral incisors
gull wing
convex
combination
Frame and Reference
Horizontal Reference Lines
w Youthful appearance
n Prominent and well-developed ____**
n Well-defined ____
n Convex or gull wing smile line
central incisors
incisal embrasures
Frame and Reference
Horizontal Reference Lines
wIncreasing age
associated with:
n Reduced ____
n ____ of gull wing effect
n ____ smile line
incisal embrasures
leveling
straight
Frame and Reference
Horizontal Reference Lines
Displeasing ____ configuration of incisal plane
Cosmetic and restorative correction to reduce ____ and create mild ____
concave
concavity
convexity
Frame and Reference
Horizontal Reference Lines
w Orientation of gingival plane is evaluated in relation to ____ line and ____ line
interpupillary
upper lip
Frame and Reference
Horizontal Reference Lines
w Exposure of gingival margins must be evaluated at various smile positions n Moderate smile lUpper lip border may cover \_\_\_\_ aspect of maxillary incisors or expose up to \_\_\_\_mm
n Gummy smile
lMore than ____mm of gingival tissue exposed during moderate smile
cervical
3
3
Frame and Reference
Horizontal Reference Lines
w Gingival asymmetry of the maxillary central incisors requires special attention n Low lip line lNo \_\_\_\_ n Moderate to high lip line \_\_\_\_ or orthodontic correction
correction
surgical
Frame and Reference
Vertical Reference Lines
wThe facial midline serves to evaluate:
n The ____ of the dental midline
n ____ discrepancies in tooth position
location and axis
mediolateral
Frame and Reference
Vertical Reference Lines
w Ideally, maxillary central incisal midline should coincide with ____ of face
w Slight discrepancy may not affect ____
w Appears ____ is more critical than mediolateral position
midline
esthetics
verticality
Frame and Reference wSagittal reference n \_\_\_\_ support n \_\_\_\_ relation n \_\_\_\_ plane \_\_\_\_ reference
upper lip
lower lip
occlusal
phonetic
Frame and Reference
Vertical Reference Lines
wSagittal references
n Profile analysis should evaluate ____ of upper and lower lips
lUsed as a guide to tooth position
contours
wUpper lip support
n Somewhat controlled by position of ____ teeth
n Gingival ____ of teeth contribute to main support of lip
maxillary
2/3
Frame and Reference
Vertical Reference Lines
wLower lip relation
n Relationship of maxillary incisal edges to lower lip is guide for general assessment of ____position and length
n F or V position
lPosition at which incisal edges of maxillary anterior teeth permit most fluent ____
lIncisal edges should make definite contact at ____ of lower lip
incisal edge
pronunciation
inner vermilion border
Frame and Reference
Vertical Reference Lines
wF or V position (continued)
n Valuable in determining facial position of \_\_\_\_ of maxillary central incisors
lMust conform to path of closure of \_\_\_\_maxillary central incisors
lower lip
