Orthodontic Radiology Flashcards
what would you use an OPT in orthodontics
presence of unerupted teeth
stage of development
morphology of teeth and roots
position of teeth
bone condition
condition of teeth
why would you use an upper occlusal
presence of unerupted teeth
localisation
anything to do with roots
why would you use a periapical
root resorption
ankylosis
what radiographs are used for localising
OPT and upper occlusal
2 PAs
if a tooth is sitting in the line of the arch will it move position between radiographs
no
what is a lateral ceph used for
look for degree of skeletal discrepancy
what patient position is used for lateral ceph
frankfurt plane horizontal to floor and tooth in occlusion
what is the sella
mid point of sella turcica
what is nasion
base of nasal bone
where is the menton
point of chin
what does tissue point A represent
maximum concavity of anterior maxilla
what does tissue point B represent
maximum concavity of anterior mandible
what is the SNA
where maxilla sits in relation to cranial base
what is the SNB
where mandible sits in relation to cranial base
what is the normal angulation of upper incisors
109 degrees
