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- Occlusion that is abnormal
- Irregularities in the position of teeth and bite
- Mal=bad Occlusion=bite
Name the three classifications of occlusion
- Class I Neutroclusion
- Class II Distoclusion- Division I-Labioversion Division II-Linguoversion
- Class III Mesioclusion
What type of measurement is used when measuring an overjet?
Which type of bite requires a vertical measurement?
Define and explain the function of osteoblast as they realte to orthodontics.
Cells deposit new bone in the area from which tooth has moved from.
Define and explain the function of osteoclast as they relate to orthodontics.
Specialized cells that dissolve or resorb the alveolar bone to create space for tooth movement.
Who created the classification system used in orthodontics?
What procedures might be performed on a new patient appointment?
- Clinical exam- intraoral measurements
- Study Models
What is a functional appliance?
- Appliance used prior to fixed appliances
- Effect the growth rate of skeletal developments (Headgear)
List 3 examples of functional appliances
Define fixed orthodontics appliance. Give examples.
- Braces= fixed- cemented
- Brackets, bands, arch wires
What is the purpose of a separator?
- To create space
- Separate molars before fitting and placement of ortho brackets.
How long should separators be left on prior to the banding appointment?
- 3-5 days before bonding appointment
- 5-7 days for brass wire
- 2 weeks for elastic
Nmae the different types of separators
- Steel spring & TP spring
- Brass wire
- Dumb bell
List the possible damages caused from improper placement of separators
- Irritated gums
- Injury to soft tissues
What is the difference b/w direct and general supervision?
- General- patient must be patient of record and the dentist must have asked you to perform the procedure.
- Direct- dentist must be physically present in the office and able to check your work
What does DD stand for?
- Dentist decides
- Determines RDA capabilities
What duties may be performed by an RDA and not a DA?
- Remove Ortho bands
- Remove supragingival cement
- SIze Ortho bands
- Place and Remove separators
For what type of appliance may an RDAEF take impressions?
- Intraoral appliances
Which appliances may be found in both the fixed and removable category?
What is the purpose of banding teeth and how long are the bands left on for?
- To support arch wires and extraoral appliances (headgear)
- Stay on as long as needed
Name the different types of brackets
- Stainless steel
Which appliance is known as "removable braces"?
What appliance might be used to widen the arch by splitting the palatine bones?
What is a Cephalometric? Why is it used?
- Lateral Radiograph of the head
- Used to measure the areas of imbalance and the degree of discrepancy.
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