Occlusal Problems in the Mixed Dentition Flashcards
what is crown root dilaceration?
trauma causes displacement of unerupted permanent crown and root formation continues in different direction
what are neonatal teeth?
deciduous teeth that erupt at birth
can cause feeding problems
what are eruption cysts?
appear as blue mucosa overlying an unerupted tooth
most common over Es and 6s
asymptomatic
resolve as tooth erupts
what are infra occluded and retained deciduous teeth?
often incorrectly called submerging
usually due to ankylosis-adjacent teeth erupt and ankylosed teeth remain unchanged vertically- gives appearance of submerging
what are retained deciduous teeth?
appear normal
missing permanent successor or ankylosis
usually require extraction if due to ankylosis - can deflect permanent successor
leave in situ if missing permanent successor
what are the 3 reasons for premature loss of deciduous teeth?
caries/trauma
balancing and compensating extractions
serial extractions
what is a crossbite?
happens if your teeth don’t line up properly when your mouth is closed.
can affect any tooth, most commonly incisors or molars
what is the problems associated with cross bites?
displacement of jaw
tooth wear
easily corrected in the mixed dentition
what does digit sucking typically cause?
proclined upper anteriors
retroclined lower incisors
buccal segment crossbites
reduced overbite or anterior open bite
what is midline diastema?
if the spacing between the mesial surface of central incisor teeth is more than 0.5mm
what is the management of impacted Es?
impact at distal of ds
not common
dental health risk
often improve with no intervention
place separator
extract?
what is the management of impacted 6s
not common
usually due to crowding
often improve with no intervention
place separator
extract?
what is the management of impacted central incisors?
remove obstruction
expose
URA to align
what is the management of impacted canines?
palpate 8-10 yrs
radiographs - ectopic
good chance will erupt if intervene (extract cs)
failure to improve - treat in permanent dentition, expose, extract, leave)
