1	Introduction PDO 213: Physical Growth and Development Mark H. Taylor, D.D.S., F.A.C.D. Associate Professor, Department of Pediatric Dentistry
2	Class Synopsis Schedule Three exams All types of questions Questions from reading assignments 25% - 25% - 50% Final is comprehensive Unannounced quizzes Grade scale Behavioral objectives
3	More Info... Clinical pictures at department website (cudental.creighton.edu) Email: mtaylor@creighton.edu Office: 375C I am usually here except for Tuesday and Wednesday afternoons
4	Also….. Pedo Tips PRO: Pedo Review Organization Every other Thursday at noon Case reviews, treatment planning, topic reviews, article reviews, chair positioning and indirect vision, dental photography, etc…..
5	Terms - Tooth Numbering Primary teeth have letters a = centrals b = laterals c = cuspids d = 1st primary molars e = 2nd primary molars
6	Terms - Tooth Numbering Permanent teeth have numbers 1 = centrals 2 = laterals 3 = cuspids 4 = 1^st bi 5 = 2^nd bi 6 = 1^st molar 7 = 2^nd molar 8 = 3^rd molar
7	Terms: Mixed Dentition Classic mixed dentition 12cde6 Early mixed dentition 1bcde6 Late mixed dentition 1234e6
8	Terms - Arch Length
9	Arch Length
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12	Terms - Overbite/Overjet Overbite is a vertical measurement of the amount of overlap of the incisors. Overjet is the millimeter horizontal measurement from the labial of the maxillary central incisor to the labial of the mandibular central incisor.
13	Overbite
14	Normal Overbite
15	Deep Overbite
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18	Open Bite
19	Open Bite
20	Thumb Sucking
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23	Posterior Open Bite
24	Overjet
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28	Anterior Crossbite
29	Terms - Facial Profile Straight Protrusive Retrusive
30	Straight Profile
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32	Protrusive Profile
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34	Retrusive Profile
35	Retrusive Profile
36	Lip Roll
37	Typical Child Profile
38	Lip Position
39	Soft Tissue Profile
40	Profile
41	Skeletal Profile
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47	Mandibular Plane
48	Rule of Thirds
49	Rule of Thirds
50	Ceph Superimposed
51	Ceph Superimposed
52	Facial Esthetics
53	First Half
54	Second Half
55	Smile Line
56	The Geometry of Esthetics
57	Fibonacci Numbers 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, …
58	Phi 233 / 144 = 1.618 377 / 233 = 1.618 610 / 377 = 1.618 987 / 610 = 1.618 1597 / 987 = 1.618 2584 / 1597 = 1.618 Reciprocal of Phi: 1 / 1.618 = 0.618.
59	So What???? Phi = Golden Ratio This “Golden Ratio” seems to play a central role in how we view the world esthetically.
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61	Phi In Nature Some attach more meaning to this ratio. See the ratio in nature Florets of the daisy (and of a sunflower as well) grow in two spirals extending out from the center. The first spiral has 21 arms, while the other has 34. A pineapple has three arms of 5, 8, and 13
62	Phi In Nature
63	Phi and Facial Esthetics
64	Phi and Dental Esthetics The front two incisor teeth form a golden rectangle, with a phi ratio in the height to the width. The ratio of the width of the first tooth to the second tooth from the center is also phi. The ratio of the width of the smile to the third tooth from the center is phi as well.
65	Patient One
66	Patient One
67	Patient One
68	Patient Two
69	Patient Two
70	Patient Two
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82	Facial Esthetics
83	Phi and Facial Esthetics