Lecture 1 - Tooth Eruption Flashcards
Orthodontics
branch of dentistry dealing with straightening of teeth
Does ortho use fixed and removable?
yes
Father of modern orthodontics
Edward H. Angle
Occlusion
refers to relationship between upper and lower jaws through dental (tooth) contact
Mixed dentition period
6-12 years
Primary dentition period
0-12 years
Permanent dentition period
6-life
primary teeth
20
permanent teeth
32
Eruption of maxillary central incisors
7-8 yrs
Eruption of maxillary lateral incisors
8-9 yrs
Eruption of maxillary Canine
11-12 yrs
Eruption of maxillary 1st PM
10-11 yrs
Eruption of maxillary 2nd PM
10-12 yrs
Eruption of maxillary 1st molar
6-7 yrs
Eruption of maxillary 2nd molar
12-13 yrs
Eruption of maxillary 3rd molar
17-21 yrs
Eruption of mandibular 3rd molar
17-21 yrs
Eruption of mandibular 2nd molar
12-13 yrs
Eruption of mandibular 1st molar
6-7 yrs
Eruption of mandibular 2nd PM
10-12 yrs
Eruption of mandibular 1st PM
10-11 yrs
Eruption of mandibular canine
11-12 yrs
Eruption of mandibular lateral incisor
8-9 yrs
Eruption of mandibular central incisor
7-8 yrs
Eruption of primary maxillary central incisor
8-12 months
Eruption of primary maxillary lateral incisor
9-13 months
Eruption of primary maxillary canine
16-22 months
Eruption of primary maxillary 1st molar
13-19 months
Eruption of primary maxillary 2nd molar
25-33 months
Shedding of primary maxillary central incisor
6-7 yrs
Shedding of primary maxillary lateral incisor
7-8 yrs
Shedding of primary maxillary canine
10-12 yrs
Shedding of primary maxillary 1st molar
9-11 yrs
Shedding of primary maxillary 2nd molar
10-12 yrs
Eruption of primary mandibular 2nd molar
23-31 months
Eruption of primary mandibular 1st molar
14-18 months
Eruption of primary mandibular Canine
17-23 months
Eruption of primary mandibular lateral incisor
10-16 months
Eruption of primary mandibular central incisor
6-10 months
Shedding of primary mandibular 2nd molar
10-12 yrs
Shedding of primary mandibular 1st molar
9-11 yrs
Shedding of primary mandibular canine
9-12 yrs
Shedding of primary mandibular lateral incisor
7-8 yrs
Shedding of primary mandibular central incisor
6-7 yrs
Girls growth spurt ages
10-13 yrs
Boys growth spurt ages
12-16 yrs
dentofacial orthopedic
altering the growth process using ortho before the child has his/her growth spurt
Which grows faster: mandible or maxilla?
mandible
When does the mandible catch up to the maxilla?
during puberty
Which starts out more anterior: mandible or maxilla?
maxilla
Class I malocclusion
normal relationship of mandible and maxilla
Class II malocclusion
maxillary teeth ahead of mandibular teeth
Class III malocclusion
mandibular teeth ahead of maxillary teeth
Orthodontists use diagnostic tools to determine what 3 things?
- Where to position teeth
- Where/when to extract teeth
- How the teeth are going to be moved
Early development problems
- Cleft lip/palate
2. Craniofacial deformities/syndromes
Early adolescent problems
- Habits (thumb sucking, tongue thrusting)
- Injuries
- Congenital problems (missing, malformed, supernumerary teeth)
- Jaw size discrepancies
- Crowding
- Early loss of primary teeth
Adolescent problems
- Impactions
2. Crowding
Are most developmental dental problems related to genetics?
no
Neural crest derivatives
- Cranial and Sensory Ganglia and Nerves
- Adrenal medulla
- Ectomesenchyme Bones and skull
- Dentin
- PDL
- Alveolar bone
Neuroectoderm derivatives
- Posterior pituitary
- Pineal body
- Retina
- CNS
Intermediate plate derivatives
Urogenital plate
Lateral plate derivatives
- CT (mesenchyme)
- Muscles of Viscera
- Serous membranes of pleura
- Pericardium and Peritoneum
- Blood and Lymph cells
- CVS
- Lymphatic systems
Paraxial derivatives
- Muscles of trunk
- Skeleton (not skull)
- Dermis of skin
- CT (mesenchyme)
Surface ectoderm derivatives
- Epidermis
- Hair
- Nails
- Cutaneous Glands
- Mammary glands
- Anterior pituitary glands
- Parenchyma of salivary gland
- Enamel of teeth
- Lens
- Inner ear
Endoderm derivatives
- Epithelial component of trachea
- Bronchi and lungs
- Epithelium of GI tract
- Liver
- Pancreas
- Urinary bladder
- Urachus
- Epithelial Component of Pharynx
- Thyroid
- Tympanic cavity
- Pharygotympanic tube
- Tonsils and Parathyroids
Pharyngeal arches are homologous to what?
branchial chamber and gill systems of fish