Orthodontics ch 60
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| a condition that occurs when a tooth is not properly aligned with its opposing tooth | crossbite
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| occlusion that is deviated from a class I normal occlusion | malocclusion
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| a lack of vertical overlap of the maxillary incisors, creating an opening of the anterior teeth | open bite
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| increased vertical overlap of the maxillary incisors | overbite
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| excessive protrusion of the maxillary incisors | overjet
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| most accredited orthodontic programs are how many years in lenght | 3
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| how many patients commonly are seen in an orthodontic practice each day | 30
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| the orthodontic problems of most people result from the interaction of developmental, genetic,environmental, and _________ influences | functional
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| the most commonly encountered developmental disturbances include congenitally missing teeth,____________,supernumerary teeth,interference with eruption and ectopic eruption | malformed teeth
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| Genetic causes are responsbile for malocclusion when there are discrepancies in what | size of jaw and/or size of teeth
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| if you have a missing tooth , it is likely that one of your parents or grandparents has the | same missing tooth
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| what is the common lay term for class II malocclusion | buckteeth
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| when the mesiobuccal cusp of the maxillary first molar occludes in the interdental space between the mandibular second premolar and the mesial cups of the mandibular first molar .. this is what type of malocclusion | class II
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| the most common malalignment problems are crowding,overjet,overbite,open bite and | crossbite
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| what can malocclusion compromsie besides chewing,swallowing,speech sounds and | TMJ pain
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| the patients first orthodontic appointment is devoted to what | obtaining records
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| what is the most commonly used radiograph for the orthodontic patient | cephalometric
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| fixed appliances are also reffered to as what | braces
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| what is used for separating contacts before band placement | separators
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| what are the 3 main methods of separation used for posterior teeth | brass wire separators, steel separating springs,and elastomeric separators
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| most commonly bands are placed on which teeth | firs and second molars
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| the occlusal edge of the orthodontic band is | slightly rolled or contoured
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| the gingival edge of the orthodontic band is | straight and smooth
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| what is the most common type of attachment | bonded bracket
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| what shape are the head gear tubes that are placed routinely on maxillary first molar bands | round
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| what shape are the edgewise tubes that are used mainly for the archwire | rectangular
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| the labial hooks are located on the facial surface of the band on what teeth | first and second molars
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| which hooks hold the interarch elastics | labial hooks
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| which attachment is used to stabilize the arch and to reinforce anchorage and tooth movement | lingual arch
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| how is the arch wire held in place | by a ligature or an elastomeric tie
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| which type of arch wire is used primarily for its flexibility during the initial stages of tooth movement for malaligned teeth or crowded teeth | nickel titanium
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| which type of archwire is used to apply greater force and gives better stability to control the teeth. | stainless steel wire
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| what are the two shapes of arch wire | round and rectangular
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| ____ wires are normally used during initial and intermediate stages of treatment | round
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| _____ wires are normally used during the final stages of treatment | square or rectangular
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| ligated means to | be hled in place
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| when ligating the wire where should the operator begin | the most posterior tooth
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| which kind of ligature ties have been spot welded at the tip to form a hook for the attachment of elastics | kobyashi
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| what are coninuous "0's" called | elastic chain
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| elastics are commonly referred to as | rubber bands
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