Orthodontic Assistant Permit - Questions And Step-by-
Step Answers
OA permit allow duties Right Ans - Facebow,ligutires ties,ultrasonic
supragingival
Primary Dentiton Right Ans - The first set of 20 primary teeth
apical foramen Right Ans - the hole at the tip of the root where nerves and
blood vessels enter the tooth
Overbite Right Ans - vertical overlap
Overjet Right Ans - Horizontal distance between the lingual of the
Maxillary anterior incisors and the facial of the mandibular anterior incisors.
Curve of Spee Right Ans - smile line curves up
Anterior teeth surface Right Ans - Incisal
Posterior teeth surface Right Ans - Occlusal
Embrasure Right Ans - A V-shaped depression between two adjacent teeth
in contact
Incisors Right Ans - Teeth between the canines that are used for cutting.
bicuspid Right Ans - A premolar tooth; a tooth with two cusps
The Palmer notation system Right Ans - System of coding teeth using
brackets, numbers, and letters.
Cervical headgear Right Ans - - worn for 14-16 hours/day
-Treatment reverses if not rapidly worn
-Cervical retrudes maxillary molars
Should be by the lips
Omega loops
, Face bow expansion Right Ans - 2mm expansion
Correct cross bite
Premade expansion
Class II Division I Right Ans - upper incisors are protruded (out)
Class II division 2 Right Ans - Upper incisors are labially inclined
Malocclusion Right Ans - any deviation from the normal positioning of the
upper teeth against the lower teeth
Class II Distocclusion Right Ans - In this classification, the maxillary first
molar is even with oranterior to the mandibular first molar; the buccal groove
of the mandibular first molar is distal to the mesiobuccal cusp of the maxillary
first molar.
- The facial profile is termed retrognathic
When the maxillary incisors are labioversion
Class III Mesiocclusion Right Ans - The mandible is in a mesial relationship
to the maxilla. This generally results in an anterior crossbite
Gingival tissue is inflamed due to the misalignment of the teeth
Cervical Head hear Right Ans - Corrects class II Only pushing upper teeth
Class I Malocclusion Right Ans - Sits on top of the cups malocclusion
Class II malocclusion (distocclusion) Right Ans - Incisors are towards the
lower midline
Class III Mesiocclusion Right Ans - Upper arch is distal to lower teeth .
Upper teeth are back and lower are front
Crossbite Right Ans - Abnormal labiolingual relationship of the maxillary
and mandibular teeth
Fixed appliance Right Ans - an appliance that is cemented or bonded.
Step Answers
OA permit allow duties Right Ans - Facebow,ligutires ties,ultrasonic
supragingival
Primary Dentiton Right Ans - The first set of 20 primary teeth
apical foramen Right Ans - the hole at the tip of the root where nerves and
blood vessels enter the tooth
Overbite Right Ans - vertical overlap
Overjet Right Ans - Horizontal distance between the lingual of the
Maxillary anterior incisors and the facial of the mandibular anterior incisors.
Curve of Spee Right Ans - smile line curves up
Anterior teeth surface Right Ans - Incisal
Posterior teeth surface Right Ans - Occlusal
Embrasure Right Ans - A V-shaped depression between two adjacent teeth
in contact
Incisors Right Ans - Teeth between the canines that are used for cutting.
bicuspid Right Ans - A premolar tooth; a tooth with two cusps
The Palmer notation system Right Ans - System of coding teeth using
brackets, numbers, and letters.
Cervical headgear Right Ans - - worn for 14-16 hours/day
-Treatment reverses if not rapidly worn
-Cervical retrudes maxillary molars
Should be by the lips
Omega loops
, Face bow expansion Right Ans - 2mm expansion
Correct cross bite
Premade expansion
Class II Division I Right Ans - upper incisors are protruded (out)
Class II division 2 Right Ans - Upper incisors are labially inclined
Malocclusion Right Ans - any deviation from the normal positioning of the
upper teeth against the lower teeth
Class II Distocclusion Right Ans - In this classification, the maxillary first
molar is even with oranterior to the mandibular first molar; the buccal groove
of the mandibular first molar is distal to the mesiobuccal cusp of the maxillary
first molar.
- The facial profile is termed retrognathic
When the maxillary incisors are labioversion
Class III Mesiocclusion Right Ans - The mandible is in a mesial relationship
to the maxilla. This generally results in an anterior crossbite
Gingival tissue is inflamed due to the misalignment of the teeth
Cervical Head hear Right Ans - Corrects class II Only pushing upper teeth
Class I Malocclusion Right Ans - Sits on top of the cups malocclusion
Class II malocclusion (distocclusion) Right Ans - Incisors are towards the
lower midline
Class III Mesiocclusion Right Ans - Upper arch is distal to lower teeth .
Upper teeth are back and lower are front
Crossbite Right Ans - Abnormal labiolingual relationship of the maxillary
and mandibular teeth
Fixed appliance Right Ans - an appliance that is cemented or bonded.
