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OA Exam
Orthodontic Assisting Practice Test
| Term | Definition |
|---|---|
| Sphygmomanometer | An instrument for measuring blood pressure |
| Tooth Morphology | Parts of the tooth |
| Oral Mucosa | The mucous membrane lining inside the mouth |
| Types of Oral Diseases | 1. Periodontal Disease 2. Gingivitis |
| Aphthous Ulcer | Canker sore, A small, shallow sore inside the mouth |
| Cleft Palate | A congenital split in the roof of the mouth |
| Oral Lesions | A mouth ulcer on the mucous membrane of the oral cavity |
| Prosthetic Devices | An intraoral device used to restore defects such as missing teeth, missing parts of teeth, and missing soft or hard structures of the jaw or palate. |
| Angle's Classification | Edward Angle's (father of modern orthodontics) 1. Class I 2. Class II, Division 1 and 2. 3. Class III |
| Oral Tori | A bony growth in the mandible along the surface nearest to the tongue |
| Gypsum Materials | Dental Plaster, Dental Stone |
| Cariogenic Foods | Producing or promoting the development of tooth decay |
| Cardiopulmonary Resuscitation | emergency medical procedures for restoring normal heartbeat and breathing to victims of heart failure, drowning. |
| Syncope | Temporary loss of consciousness caused by a fall in blood pressure |
| Myocardial Infarction | Another name for heart attack |
| Avulsed teeth | The complete displacement of a tooth from it's socket in alveolar bone to trauma. |
| How long do you have to save an avulsed tooth? What can you place the tooth in to save the tooth? | 1. 30 mins 2. milk |
| Dental Jurisprudence | The knowledge of law of dentistry |
| What is the proper way to trim a model? | Trim the base of the upper model, then the upper sides, then the lower model base and sides |
| How many cusps would you expect to find on the first lower molar on permanent teeth? | Five |
| How many cusps on the upper first molar? | Four |
| Dental Radiography contributes to what percent of xrays taken in the healthcare setting? | radiation from dental xray is approximately -1% |
| Most adhesives used to bond brackets come in what presentation? | As a liquid, and paste, or powder |
| Chemical reactors for silicone-based products must be stored in a cool place because it will: | Deteriorate after 6 months |
| When are the fees for oral surgery explained to patient? | Before informed consent |
| A patient could suffer from bleeding complications if he or she has a______ condition. | Kidney or Liver |
| Sterile dental supplies should be stored: | In a separate, cool, dry place |
| The pulp contains all of the following except? 1. Muscles 2. Nerves 3. Blood Vessels | 1. Muscles |
| The fold in the center of the lip is called? | Philtrum |
| What word means "towards the midline"? | Mesial |
| How long does it take to create new bone? | 5 weeks |
| An underbite is what classification? | Class III |
| The main purpose of an ultrasonic is to: | Remove excessive debris |
| Continuous steel ties are used to: | Keep teeth from moving apart |
| What appliance is a piston used to position the mandible? | Herbst |
| What type of appliance is not a fixed/active appliance? | Schwartz Appliance |
| A collimator minimizes patients exposure by: | Narrowing the xray beam down |
| Dental plaque is the name given to: | The growth and accumulation of bacteria on the teeth |
| Floride is important for orthodontic patients because: | It helps prevent decalcification |
| The proper way to correct a mistake on a chart entry includes: | A single line strike out the part of the entry that is incorrect |
| Osteoblasts | Cells that form bone |
| Osteoclasts | Cells that resorb bone |
| Distoclusion | Class II |
| Mesioclusion | Class III |
| How many parts are there to make up headgear? | 2, 1.) face bow 2.) traction device |
| What does the face bow do? | stabilizes or moves the upper first molar distally to create more room in the arch. |
| What does the traction device do? | Applies the extraoral force needed to achieve desired treatment device |
| What are four types of traction? | 1. High-pull 2. Cervical traction 3, Combination head gear 4. Chin cap |
| High-pull headgear does what? | Retraction of the anterior teeth |
| Cervical traction? | Used when the maxillary first molars are stabilized or moved distally |
| Combination head-gear? | It exerts a force along the occlusal plane and upward |
| Chin Cap? | for patients with class iii malocclusion |
Created by:
Drude2012
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