impacted incisors and premolars Flashcards
(19 cards)
what is the 3rd most commonly impacted tooth?
maxillary incisors
Delayed eruption of maxillary incisors requires monitoring and radiographic investigation if: 2
Contralateral teeth erupted 6-12 months previously
Deviation from normal sequence of eruption - 2s before 1s
what flap design is used for exposure and alignment of impacted incisors?
3 sided buccal flap
impacted maxillary incisors need to be removed if cant be orthodontically aligned. give an example of when this would be the case?
severely dilacerated roots
what is the 4th most commonly impacted tooth?
mandibular premolars
causes of impacted mandible permolars 5
crowding, pathology, ankylosed deciduous tooth, supernumeraries, genetic disorders
when is a conservative approach to impacted manidublar premolars suitable? 2
no pathology or impact on OH
flap design for removal of mandibular premolars
2-sided
what is a supernumerary
extra tooth
what is a supplemental supernumerary tooth?
look like a normal tooth
what is a conical/tuberculate supernumerary tooth?
don’t look like a normal tooth
what is a mesiodens?
supernumerary between central incisors
define hyperdontia?
more teeth than normal 32
management of hyperdontia
removed as difficult to maintain OH
what are odontomes?
- Benign tumor composed of dental tissues like enamel, dentine and cementum
Caused by a genetic malformation called hamartoma
what are the 2 types of odontome?
complex
compound
what is a complex odontome
single irregular mass
what is a compound odontome?
multiple small tooth like structures
management of odontomes
Surgical removal if impeding eruption or associated pathology
