golden proportion
Post on 03-Apr-2018
218 Views
Preview:
TRANSCRIPT
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 1/33
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 2/33
Golden proportion : a tool in
evaluation of facial esthetics
Guides:Prof. Dr. K. Chandrasekharan NairDr. Jaykara Shetty
Dr. Vishwanath
ANUPAMA M.S AECS Maaruti College
of Dental Sciences
Bangalore
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 3/33
Golden proportion : a tool inevaluation of facial esthetics
►The quest for beauty has been expressed byevery human culture, Many factorsinfluence the perception of beauty
►Beautiful faces have ideal facial proportion.Ideal proportion is directly related to divineproportion also known as Phi
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 4/33
►Phi is present in the basic building blocks of a human’s skeletal structure. Even the
human concept of beauty seems to be
entirely built on the concept of Phi. Thosefaces that we find most attractive tend tohave ratios that are perfectly in tune with
the Golden Proportion which is 1: 1.618
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 5/33
►Dentists are not only scientists but "artists"of the dentition. It is each dentist'sobligation to create uniform harmony in
each patient's dentition in relationship totheir face. Prosthodontists mainly deal withaesthetics of the dentition the beauty of
which can be gauged in the background of awell proportioned face.
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 6/33
Purpose :
►The purpose of the study was to analyzemanually the validity of golden proportion inbeautiful faces of Indian origin. Selected
faces were analyzed on the basis of goldenproportion and verified in relation to otherparameters of esthetics.
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 7/33
Methodology :
►Pictures of famous Indian film stars wereselected
►Selection was made based on popularityamong youngsters
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 8/33
Parameters used to measure goldenproportion among the subjects :
►1. Distance from forehead to chin : distancefrom forehead to nose
►2. Width of lips : width of lateral borders of nose
►3. Ratio of visible width of upper anteriorteeth - width of central incisor : width of lateral incisor : width of canine
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 9/33
Other parameters of esthetics - evaluated toverify the relation of golden proportion withesthetics:
►Buccal corridor : is the space measured frommesial line angle of the maxillary 1st pre molar tothe interior portion of the commissure of lips.
Smaller and broader space is more attractive thanlonger and narrower one
►Ratio of lower third of face : distance fromsub nasale to incisal edges of upper incisorsis 1/3 of the length from upper lip to lowerborder of chin
►Midline coincidence :
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 10/33
►Smile curve : The curvature of the maxillary
incisal edges coincides with or parallels the borderof lower lip on smiling in optimal smile.
►Presence of equilateral triangle : intercanthalline, lines from the outer canthus to mid point of chin join to form equilateral triangle in esthetically
appearing faces
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 11/33
Golden proportion: subject 1
► Parameter 1 :
1.57
► Parameter 2 :
1.54
►
Parameter 3 :1.66
1.56
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 12/33
Other parameters : subject 1
► Buccal corridor :optimal
► Proportion of lowerthird :
1/3 : 2/3
► Midline coincidence: +
►
Smile curve :
► Equilateral triangle: +
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 13/33
Golden proportion : subject 2
►Parameter 1 :
1.61
►
Parameter 2 :1.64
►Parameter 3 :
1.6
1.58
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 14/33
Other parameters : subject 2
► Buccal corridor :optimal
► Proportion of lowerthird :
approx 1/3 : 2/3
► Midline coincidence: +
► Smile curve :
► Equilateral triangle: +
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 15/33
Golden proportion : subject 3
►Parameter 1 :
1.66
►Parameter 2 :1.6
►Parameter 3 :1.57
1.6
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 16/33
Other parameters : subject 3
► Buccal corridor :optimal
► Proportion of lowerthird :
approx 1/3 : 2/3
► Midline coincidence: +
► Smile curve :
► Equilateral triangle: +
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 17/33
► Parameter 1 :
1.55
► Parameter 2 :1.56
►
Parameter 3 :1.5
1.6
Golden proportion : subject 4
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 18/33
► Buccal corridor : optimal
► Proportion of lower third :
approx 1/3 : 2/3
► Midline coincidence: +
► Smile curve :
► Equilateral triangle: +
Other parameters : subject 4
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 19/33
Golden proportion : subject 5
►Parameter 1 :
1.5
►Parameter 2 :
1.58
►Parameter 3 :1.5
1.54
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 20/33
Other parameters : subject 5
► Buccal corridor :optimal
► Proportion of lower
third :approx 1/3 : 2/3
► Midline coincidence: +
► Smile curve :
► Equilateral triangle: +
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 21/33
Golden proportion : subject 6
► Parameter 1 :
1.62
► Parameter 2 :
1.55
► Parameter 3 :1.6
1.66
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 22/33
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 23/33
GOLDEN PROPORTION : subject 7
► Parameter 1 :
2.44
► Parameter 2 :1.53
► Parameter 3 :
1.5
1.33
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 24/33
Other parameters : subject 7
► Buccal corridor :smallerand narrower
► Proportion of lower third :
lower half is more than2/3 upper half
► Midline coincidence: +
► Smile curve :
► Equilateral triangle :
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 25/33
GOLDEN PROPORTION : subject 8
►Parameter 1 :
1.78
►Parameter 2 :
1.72
►Parameter 3 :
1.33
1.6
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 26/33
Other parameters : subject 8
► Buccal corridor : too wide
► Proportion of lower third :lower half is more than
2/3 of upper half
► Midline coincidence:slight shift to left
► Smile curve :
► Equilateral triangle :
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 27/33
GOLDEN PROPORTION : subject 9
► Parameter 1 :
1.71
► Parameter 2 :1.45
► Parameter 3 :
1.33
1.5
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 28/33
Other parameters : subject 9
► Buccal corridor : +
► Proportion of lower third :
approx 1/3 : 2/3
► Midline coincidence:
slight shift to left
► Smile curve :
► Equilateral triangle
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 29/33
GOLDEN PROPORTION : subject 10
► Parameter 1 :
1.55
► Parameter 2 :1.46
► Parameter 3 :
21.75
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 30/33
Other parameters : subject 10
► Buccal corridor : too wide
► Proportion of lower third :
lower half is less than 2/3
of upper half
► Midline coincidence: +
► Smile curve :
► Equilateral triangle
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 31/33
Results :
►In subjects whom the measured facialproportions were close to the goldenproportion, the other parameters of esthetic
face were also present unlike in subjectswere golden proportion did not exist.
►Hence golden proportion can be used as a
tool in evaluating beauty
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 32/33
Conclusion
Disproportionate human faces are less
appealing, whereas faces with
proportionate features are acceptableif not always beautiful.
7/28/2019 Golden Proportion
http://slidepdf.com/reader/full/golden-proportion 33/33
A divenly proportioned face is timeless and ageless
Thank you
top related