This document discusses anthropometry and cephalometric analysis for facial assessment. It begins with a brief history of anthropometry, noting early attempts by da Vinci and others to define proportions of an ideal face. It then covers various anthropometric measurements and analyses, including dividing the face into halves, thirds, or fourths. Specific regions like the forehead, eyes, nose, lips, teeth, and chin are examined. Ideals and averages for various measurements are provided. The document also discusses cephalometric analysis, including how to perform tracings and measurements on cephalograms to assess bone relationships and jaw and tooth positions.
Airway analysis and its relevance in orthodonticsMiliya Parveen
Introduction
Anatomy
Naso – respiratory function and craniofacial growth
Methods of analysis
Clinical examination
Otorhinolaryngology tests for upper airway
Supplementary examinations
LC
CBCT
Airway and skeletal patterns
Obstructive Sleep Apnoea
Mouth breathing
Effect of orthodontics on airway
Extraction cases
Expansion
Mandibular advancement
Orthognathic surgery
Adenoidectomy or tonsillectomy
Role of orthodontist
Conclusion
COGS analysis (Cephelometrics for orthognathic surgery) / fixed orthodontics ...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Airway analysis and its relevance in orthodonticsMiliya Parveen
Introduction
Anatomy
Naso – respiratory function and craniofacial growth
Methods of analysis
Clinical examination
Otorhinolaryngology tests for upper airway
Supplementary examinations
LC
CBCT
Airway and skeletal patterns
Obstructive Sleep Apnoea
Mouth breathing
Effect of orthodontics on airway
Extraction cases
Expansion
Mandibular advancement
Orthognathic surgery
Adenoidectomy or tonsillectomy
Role of orthodontist
Conclusion
COGS analysis (Cephelometrics for orthognathic surgery) / fixed orthodontics ...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Description :
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The general indications for SARPE are skeletal maturity, transverse maxillary deficiency, excessive display of buccal corridors when smiling, and anterior crowding.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Smile analysis from the orthodontic perspective.
Major determinants of smile esthetics are discussed based on the discussions of the Proffit and Graber
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Third molars& its significance in orthodontic treatment & relapse /certified ...Indian dental academy
The Indian Dental Academy is the Leader in
continuing dental education , training dentists
in all aspects of dentistry and offering a wide
range of dental certified courses in different
formats.
Indian dental academy provides dental crown &
Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit
www.indiandentalacademy.com ,or call
0091-9248678078
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
HI THIS IS A NICE SEMINAR DESCRIBING ABOUT THE ORTHOGNATHIC SURGERY MAINLY RELATED TO ORTHODONTICS VIEWPOINT AND CEPH TRACING ITS INDICATION AND DIFFERENT TYPES OF SURGERIES. JUST HAVE A LOOK TO IT
Description :
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The general indications for SARPE are skeletal maturity, transverse maxillary deficiency, excessive display of buccal corridors when smiling, and anterior crowding.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Smile analysis from the orthodontic perspective.
Major determinants of smile esthetics are discussed based on the discussions of the Proffit and Graber
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Third molars& its significance in orthodontic treatment & relapse /certified ...Indian dental academy
The Indian Dental Academy is the Leader in
continuing dental education , training dentists
in all aspects of dentistry and offering a wide
range of dental certified courses in different
formats.
Indian dental academy provides dental crown &
Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit
www.indiandentalacademy.com ,or call
0091-9248678078
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
HI THIS IS A NICE SEMINAR DESCRIBING ABOUT THE ORTHOGNATHIC SURGERY MAINLY RELATED TO ORTHODONTICS VIEWPOINT AND CEPH TRACING ITS INDICATION AND DIFFERENT TYPES OF SURGERIES. JUST HAVE A LOOK TO IT
Clinical examination of an orthodontic case /certified fixed orthodontic cour...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
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Rhinoplasty (2) /certified fixed orthodontic courses by Indian dental academy Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Rhinoplasty (2) /certified fixed orthodontic courses by Indian dental academy Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Terminologies
Introduction
Reference frames for orientation
Lip lines
Gold proportion
Smile dominance
Perceptual aspects – the art of illusion
Cosmetic Contouring
Smile design: Clinical assessment, analysis and consideration
Porcelain laminates and veneers: Clinical assessment and analysis Colour
Shade selection
Dental bleaching
Esthetics with composites
Metal ceramic and all ceramic restorations
Implant – esthetics
Perio – esthetics
Ortho – esthetics
Recent advances in smile design in prosthodontics
Review of literature
Conclusion
References
Soft tissue cephalometrics analysis /certified fixed orthodontic courses by I...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Smile is more than a form of communication; it is kind of socialization
and attraction. Although moderate gummy smile can be quite acceptable and
esthetically pleasing if the gum is healthy, more pronounced cases are
less well tolerated and require treatment.
Similar to Anthropometry and cephalometric facial analysis (20)
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
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Anti ulcer drugs and their Advance pharmacology ||
Anti-ulcer drugs are medications used to prevent and treat ulcers in the stomach and upper part of the small intestine (duodenal ulcers). These ulcers are often caused by an imbalance between stomach acid and the mucosal lining, which protects the stomach lining.
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Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
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TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
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Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
Ocular injury ppt Upendra pal optometrist upums saifai etawah
Anthropometry and cephalometric facial analysis
1. Anthropometry and
Cephalometric Facial Analysis
DR. AMIT KR.CHOUDHARY
RIMS ,IMPHAL
There is no excellent beauty that hath not
some strangeness in the proportions.
-Francis Bacon
2. • Our face defines who we are as an individual. Every person's
face is unique. Even identical twins possess certain
distinguishing facial characteristics.
• The face is a mosaic of lines, contours, prominences, and
depressions producing reflections of light and shadows.
• We all know the allure of a beautiful face, but do we know
what factors make up the composite so pleasing to our eye?
3. • Concepts of facial beauty also seem to cross cultural and racial
lines.
• Our face is the most highly scrutinized area of our body. Small
changes in detail, even those produced by such innocuous
modalities as cosmetics, can effect changes that are perceived
dramatic.
4. • Strategies for preoperative assessment and planning are
necessary parallels to the surgical advances to achieve an
optimal outcome.
• Anthropometry and cephalometric analysis help clarify what
we perceive as variation from the ideal and are useful clinical
tools for surgical planning.
• Anthropometry examines the dimensions and relationships of
the face by use of soft tissue points.
• Cephalometric analysis studies bone relationships by use of a
standardized radiograph.
5. Anthropometry
• Anthropometry is the study of the human body to define size
and weight measurements and proportional relationships.
• Caliper, ruler, protractor, and angle meter.
• Anthroposcopy is the analysis of the body by visual
assessment in descriptive terms (e.g., bird-like face).
• Photogrammetry is indirect anthropometry and involves
taking measurements from standardized photographs.
6. Cephalometrics
• Cephalometrics is the measurement of the head and face by
use of bone and soft tissue points derived from a specific
reproducible radiograph called a cephalogram.
• Cephalometrics is complementary to anthropometrics as the
underlying bone gives shape to the soft tissues.
7. HISTORY OF ANTHROPOMETRY
• Albrecht DA rer, Cennino Cennini, and
Leonardo da Vinci, attempted to define the ideal
face by dividing the face into symmetric
sections and mathematical proportions.
• A pleasing face was seen as divisible into three
or four equal sections horizontally.
• The distance between the eyes the same as the
width of either of the eyes, the ear and the nose
having the same inclination, and other such
proportions.
• These relationships of the human face have
come to be called canons.
Leonardo da Vinci’s proportions of the ideal human body
8. • Czechoslovakian anthropologist and physician Ales Hrdlicka
(1869-1943).
• Karel Hajnis, another anthropologist at Charles University in
Prague, Czechoslovakia, studied children with cleft lip and palate by
use of Hrdlicka's anthropometric principles.
• Farkas has made a major contribution to our understanding of how
anthropometry relates to the face and head in normalcy, beauty, and
deformity.
9. NEOCLASSICAL CANONS
• Dividing the face into proportions has been a
convenient way to address facial analysis,
called neoclassical canons .
• Introduced by Renaissance artists such as da
Vinci and Dürer to define ideal facial form
in art.
• The canons attempt to apply mathematical
relationships to achieve a formula for facial
balance and beauty.
12. The Frankfort horizontal may be approximated on lateral photographs by constructing a line from the
superior margin of the tragus to the junction between the lower eyelid and the cheek skin.
13.
14.
15. • The two-section canon states that the height of vertex to
endocanthion is equal to the height of endocanthion to gnathion.
This divides the face into two equal parts at the medial canthus.
• 80% of subjects had the upper face 12.3 mm (range, 2 to 29 mm)
higher than the lower facial half. Only 10% of subjects had the
same proportions as the neoclassical canon.
• Mean height from vertex to endocanthion
Men 121.3 ± 7 mm and
Women 118.7 ± 6 mm
• Mean from endocanthion to gnathion was for
Men 117.7 ± 7 mm and
Women 102.7 ± 6 mm
• Ratio of 1:0.97 for men and 1:0.86 for women between facial halves.
• Men show longer lower faces than do women on the average
DIVISION BY HALVES
16. DIVISION BY THIRDS
• The three-section canon
states equal heights of
trichion to nasion, nasion
to subnasale, and
subnasale to gnathion.
• The four-section canon
relates the heights of
vertex to trichion,
trichion to glabella,
glabella to subnasale, and
subnasale to gnathion as
being equal.
17. • The three-section canon states that the height of the nose is
equal to the height of both the forehead and the lower face.
The averages showed heights from
Trichion to nasion
67 ± 7.5 mm in men
63 ± 6 mm in women
Nasion to subnasale
55 ± 3 mm in men
51 ± 3 mm in women
subnasale to gnathion
73 ± 4.5 mm in men
64 ± 4 mm in women.
Ratios of 1:0.8:1.1 for men and 1:0.8:1 for women.
18. The height of the nose is less than the height of either the
forehead or the lower face for both men and women.
The measurements show a greater proportion to lower face
height for men than for women.
Fifty percent of the population had a lower face height greater
than the height of hairline to nasion.
Thirty-five percent showed the opposite relationship.
19. Four-section canon
• The four-section canon states that the midface height from eyebrows to
base of the nose should equal the height of the forehead and the lower
face.
• The averages on actual subjects showed heights from
Trichion to glabella
57 ± 7 mm for men
53 ± 6 mm for women
Glabella to subnasale
67 ± 5 mm for men and
63 ± 4 mm for women,
Subnasale to gnathion
73 ± 4.5 mm for men
64 ± 4 mm for women.
Ratios of 1:1.2:1.3 for men and 1:1.2:1.2 for women.
Men tend toward progressively larger facial thirds superior to inferior.
Women have a less prominent lower facial component to their facial
proportions and tend toward equal middle and lower facial heights
20. • The lower facial height of subnasale to gnathion is divided as
one third from subnasale to stomion and two thirds from
stomion to gnathion.
• Ratios of 1:2.3 for men and 1:2.15 for women.
• A larger proportion of the lower face height in men is
contributed by the mandible
21. FOREHEAD AND EYEBROW
• The forehead comprises the area from the hairline (trichion)
to glabella. It can be considered an aesthetic unit because it
is a seamless, homogeneous surface of the upper face.
• The average height is
6 to 7 cm in men
5 to 6 cm in women.
• The forehead viewed from the lateral has a posterior
inclination of
10 ± 4 degrees in men
6 ± 5 degrees in women.
22. It makes an angle with the
nasal dorsum, called the
nasofrontal angle,
130 ± 7 degrees in men
134 ± 7 degrees in women
The supraorbital rims
laterally and the glabella
medially are the most
projected areas of the
forehead.
The depth of nasion should
be 4 to 6 mm in relation to
glabella
24. Eyebrow
• In general, an aesthetic eyebrow is a smooth arch with its apex at the lateral
limbus of the eye. The lateral end is at or 2 to 3 mm superior to the medial
end.
• In men, the eyebrow overlies the supraorbital rim. In women, it is 1 to 3
mm above the rim.
• The top edge of the brow is 2.5 cm above the pupil and 1.5 cm above the
upper eyelid crease.
25. Eyebrow position can be altered by brow lift procedures to
produce a perceived change of both the forehead height and the
middle facial height
26. EYES
• The orbital proportion canon indicates that the distance between the medial
canthi is equal to the width of the eye fissure (the distance from medial to
lateral canthus).
• only one third of subjects showed an intercanthal distance equal to the eye
fissure width.
• It was wider by a mean of 3.5 mm in 51.5% and narrower by a mean of 2.8
mm in 15.5% .
• In adults, the intercanthal distance averages 30 to 36 mm in men and 30 to
34 mm in women.
• The eye fissure length (medial canthus to lateral canthus) averages 30 to 33
mm in men and 29 to 32 mm in women.
27. • Lateral canthus 2 to 3 mm superior to the medial canthus.
• Upper lid should cover 1 to 2 mm of the superior limbus.
• More than 2 mm of overlap - upper lid ptosis.
• The lower eyelid touches or slightly overlaps the inferior
limbus.
28. • The supraorbital rim protrudes 8 to 10 mm beyond the cornea.
• Men women
• The cornea projects 2 to 3 mm beyond the inferior orbital rim and 12 to 16
mm beyond the lateral orbital rim
29. NOSE
• Divided into three regions: the radix, dorsum, and soft nose.
• The radix is, root of the nose ,most narrow and least projected area.
• The nasal dorsum extends from the caudal end of the radix to the supratip
break, where the soft nose begins
• The soft nose consists of the mobile portion of the nasal tip, columella, and
ala.
30. Nasofacial proportion canon
• The width of the ala equals one-fourth the width of the
distance between the zygomas.
• The orbitonasal proportion canon states that the distance
between the medial canthi equals the width of the ala.
31.
32. Nasoaural proportion canon
• Length of the nose is equal to the height of the ear.
• Inclination of the nasal dorsum is equal to the inclination of
the ear.
33. The nasofacial angle
• Soft tissue nasion = deepest point of concavity of the radix region.
• Approximated at the level of the lash line of the upper lid in forward gaze.
• 4 to 6 mm deep to glabella
• The nasofacial angle, a measurement of nasal dorsum inclination, is 36
degrees in men and 34 degrees in women to a line perpendicular to
Frankfort horizontal through nasion.
• Subnasale, the point at the base of the columella, should project 2 mm
caudal to the alar rim.
The angle made between the
columella and the upper lip,
the nasolabial angle, is 100
to 103 degrees in men and
105 to 108 degrees in
women
34.
35. LIPS
• The naso-oral proportion canon
states that the width of the mouth
equals 1½ the width of the ala.
• The width of the mouth at the
commissures should fall within
vertical lines dropped from each
medial limbus.
• Artistic renderings of the balanced
lower face have described the upper
lip as forming one third and the
lower lip and chin as forming two
thirds of the lower facial height.
• A ratio of 1:2.3 in men and 1:2.15 in
women .
36. • The labiomental groove or fold is the deepest point of
contour change at the junction of the lower lip and chin.
It defines the point sublabiale.
• The labiomental groove located one-third the distance
from stomion to gnathion.
• The chin composes two thirds of this segmental lower
facial height, with the lower lip thus forming a ratio of
1:2 lower lip to chin.
37.
38. TEETH
• The upper incisor teeth should be visible for 1 to 4
mm.
• Overbite is the amount of vertical overlap the
maxillary central incisors have over the mandibular
incisors.
• Overjet is the amount of anterior projection the
maxillary central incisors have beyond the mandibular
incisors (horizontal overlap). The normal values for
overjet and overbite are 1 to 3 mm.
39. Dental molar relationship
• A class I relationship has the mesiobuccal cusp of the maxillary first
molar occluding into the buccal groove of the mandibular first
molar.
• class II relationship, the mesiobuccal cusp is anterior (distal) to the
buccal groove. A class II molar relationship is generally associated
with an underprojected mandible termed retrognathia.
• A class III relationship has the mesiobuccal cusp posterior
(proximal) to the buccal groove. In this relationship, the mandible
can be overprojected, producing prognathia, or the molar position
can be due to maxillary retrusion.
40. • A lack of vertical incisor overlap is called an open bite.
41.
42. CHIN PROJECTION
• Pogonion, the most anterior projection of the
chin pad, will make an angle of 11 ± 4 degrees
with a vertical line from glabella to subnasale .
43.
44. • A perpendicular line from Frankfort horizontal through subnasale should
show pogonion 3 ± 3 mm posterior to the line.
• A perpendicular line between Frankfort horizontal and nasion should
intersect with pogonion 0 ± 2 mm .
45. • A deficient chin projection will
enhance the perception of an
over projected nasal dorsum.
• Lowering the nasal dorsum or
narrowing the radix can give
the illusion of widening the
eyes.
47. • Cephalometric analysis is used to
assess the bone relationships of
the face and the relationships of
the jaws and teeth.
• In 1931, the technique of
cephalometric analysis was
introduced in the United States by
Broadbent and in Germany by
Hofrath.
• The technique involves making a
standardized lateral head
radiograph by keeping the x-ray
beam, subject, and film distances
constant.
48. • The subject's head is held in a
reproducible position with a
head-holding device called a
cephalostat.
• The cephalostat stabilizes the
head with ear rods and a nose
clamp.
• A lateral cephalometric head
radiograph, called a
cephalogram, is produced.
• The cephalogram shows the
skull and face bones, the teeth,
and the shadows of the
pharynx and soft tissue profile
outline.
49. • The analysis of a cephalogram is
traditionally done by use of an x-
ray view box and acetate film.
• An outline tracing is made of the
frontal, sphenoid, nasal, anterior
maxilla, palate, and mandible
bones.
• The teeth and their roots are also
included.
• Desired measurements, angles,
and planes are drawn and
analyzed.
50. • Two commonly used normative data collections are the
Bolton standards and the cephalometric standards from the
University of Michigan School Growth Study.
• Both contain data on age ranges from childhood to adult of
subjects without dentofacial deformities.
• The data are arranged in tables containing values for distances
and angles between cephalometric landmarks separated by age
and sex.
55. ANALYSIS
STEP 1: TRACING THE CEPHALOGRAM
Trace the frontal
Trace the outline of the nasal bone.
Trace the outline of the sella turcica
Trace the backward J-shaped outline of the lateral and
inferior orbital rim.
Find porion or use the superior point of the ear rod
shadow as a substitute.
Trace inferiorly along the piriform rim, anterior nasal
spine, and maxillary alveolus.
Trace the maxillary and mandibular incisor teeth.
Trace the mandible including the coronoid process,
condyle,
The soft tissue profile, including the forehead and neck,
is traced
56. STEP 2: ANALYSIS OF SKELETAL REGIONS
CRANIAL BASE
Cranial base length is the
measurement of sella to nasion. The
average is 83 ± 4 mm in men and
77 ± 4 mm in women.
Frankfort horizontal makes an
angle of approximately 5 to 9
degrees inferior (clockwise) to SN
in most normal individuals.
Cranial base length can be
increased by monobloc Le Fort III
advancement.
57. ORBITS
• Frankfort horizontal passes from porion
through orbitale, the lowest point of the
inferior orbital rim.
• The distance from porion to orbitale is
74.5 ± 5 mm in men and 70.5 ± 4.5
mm in women.
• A line connecting the superior orbital
rim with the inferior orbital rim
intersects Frankfort horizontal at an
angle of 72 ± 9 degrees in men and
75.8 ± 7.6 degrees in women.
• These measurements are valuable in
assessing deficiencies in orbital rim
projection .
58. MAXILLA
• Angle formed by the intersection of
the lines sella-nasion and nasion-A
point.
• The angle of SNA is 82 ± 4 degrees
for both men and women.
• Angle formed by the intersection of
Frankfort horizontal and nasion-A
point. This relationship, called
maxillary depth, is 90 ± 3 degrees.
• A line that passes through anterior
nasal spine and posterior nasal spine.
This line, called the palatal plane,
makes an angle of 8 ± 3 degrees with
SN and of 25 ± 5 degrees with the
mandibular plane.
The anterior-posterior position of the maxilla relative to cranial base can be
evaluated with the angle ormed by the intersection of the lines sella-nasion (SN) and
nasion-A point. The angle of SNA is 82 ± 4 degrees for both men and women. An
alternative relationship is based on the angle formed by the intersection of Frankfort
horizontal (FH) and nasion-A point. This relationship, called maxillary depth (MD), is
90 ± 3 degrees.
59. DENTAL RELATIONSHIPS
• The occlusal plane of the maxilla
makes an angle with Frankfort
horizontal of 8 ± 4 degrees.
• The long axis of the maxillary
central incisor (I) makes an angle
with the line nasion-A point of 22
± 2 degrees.
60. • The long axes of the maxillary and
mandibular incisors make an angle with
each other of 130 ± 10 degrees .
• The maxillary central incisor should be
exposed 1 to 4 mm from the inferior edge of
the upper lip.
• The amount of tooth exposure is an
indication of the amount of anterior vertical
maxillary excess.
• Maxillary excess or deficiency can be
corrected by Le Fort I procedures.
61. MANDIBLE
• The anterior-posterior position of the
mandible relative to cranial base can be
evaluated with the angle formed by the
intersection of the lines sella-nasion and
nasion-B point.
• The angle of SNB is 79 ± 4 degrees for
both men and women.
• An alternative relationship is based on the
angle formed by the intersection of
Frankfort horizontal and nasion-B point.
This angle, called mandibular depth, is
88 ± 3 degrees .
62. CHIN
• The most projected point of the chin is
pogonion.
• The anterior-posterior chin prominence in
relationship to the mandible is assessed
from the projection of pogonion beyond
the line nasion-B point. Pogonion should
project 4 to 6 mm beyond NB.
• The relationship of pogonion to the
mandibular central incisors is assessed
with a line from A point to pogonion. The
mandibular incisor tip should project 2 ±
2 mm beyond the line.
• Angle formed by the intersection of the
lines glabella-subnasale and subnasale-
pogonion should be 11 ± 4 degrees. This
relationship is called the angle of facial
convexity.
63. FACIAL HEIGHTS
• The upper facial height from nasion
to the anterior nasal spine is 52 to
57 mm.
• The lower facial height from
anterior nasal spine to menton is 63
to 68 mm.
• Probably of more value is the ratio
of the upper and lower heights,
which is 1:1.2.
• Changes to the facial heights can be
made with Le Fort maxillary
procedures and surgeries to the
mandibular symphysis region.
64. Compiling Analytic Information
• Anthropometry of the face and cephalometric analysis of the
facial skeleton are disciplines that complement each other in
the evaluation of deformities and surgical planning of
aesthetic, dentofacial, and craniofacial procedures.
• One's subjective clinical assessment and the patient's desires
must also be considered in the overall treatment plan.
• However, the ability to perform a thorough facial and
cephalometric analysis can be useful when there is an unclear
etiology to a patient's perceived deformity.