Facial Analysis
This is an imaginary plane that passes longitudinally through the middle of the head and divides it into right and left halves. It is used to descvribe anterior-posterior relationship
What is the sagittal plane?
What is tipping?
This is a malformed, peg-like tooth that occurs between the maxillary central incisors?
What is a mesiodens?
More than THIS percent of bone loss is a contraindication to orthodontic treatment
What is 70%?
Before beginning growth modification (ex: with a functional appliance), you need to get correct this
What is the incisor inclination?
This is point defined as the smooth part of the forehead above and between the eyebrows
What is glabella?
This tissue of the periodontium is the most important for orthodontic tooth movement
What is the periodontal ligament?
These primary teeth are typically lost around 6-7 years old.
What are central incisors? (Maxillary and mandibular)
These are defined as subsurfae enamel porosity from demineralization that presents itself as a milky white opacity when located on smooth surfaces
What are white spot lesions?
This functional appliance has a 2-piece design that allows for more freedom
What is the twin block appliance?
What is concave?
These cells are involved in the resorptive surface of the alveolar bone wall toward which the tooth is migrating into
These teeth are wider mesiodistally than their counterparts
What are primary teeth?
These teeth are most commonly affected by external apical root resorption (EARR)?
What the maxillary central incisors?
This uses a hand/wrist x-ray to determine the level of fusion of bones in fingers and wrist to determine how much growth is left
What is SMI/Fishman's Index?
This occlusion is notable for a molar relationship where the buccal groove of the first mandibular molar is distally positioned when in occlusion with the mesiobuccal cusp of the maxillary first molar AND the maxillary anterior teeth are proclined with a large overjet
What is class II division 1?
Resorption of this tissue by macrophages on the pressure (compression) side results in tooth movement
This is the first permanent posterior tooth to erupt
What is the mandibular first molar?
These types of movements, when attempted simultaneously, may be causative factors of external apical root resorption?
What are intrusion & root torque?
This is the duration of the bionator appliance
What is 18-24 months?
This term is used to describe a tooth that has not erupted to the occlusal plane
What is infraversion? (orthodontic diagnosis slide 92)
This is the main feature of the secondary period of tooth movement?
What is deposition of new bone?
This is the prevalence of hypodontia in the United States (excluding third molars)
What is 2-4% ?
These 4 methods cause the most enamel damage during debonding and should not be used
What are diamond burs, green stones, steel burs, and lasers?
This appliance is contraindicated in a patient with flared mandibular incisors
What is the Herbst appliance?