Impacted incisors and premolars

Question 1

What to look for when assessing delayed incisor eruption

Answer 1

retained deciduous teeth, palpable buccal or palatal mass, lack of space, erupted mesiodens/ supernumeraries

Question 2

management of incisor impaction

Answer 2

conservative, intereceptive, exposure, removal and transplantation

Question 3

technique of incisor exposure

Answer 3

often positioned Kabila therefore flap raised taking as much attached gingival as possible and repositioned apically and packed = open technique
removal of bone - maximum convexity of tooth
closed technique - using brackets and gold chains

Question 4

mandibular premolars aetiology

Answer 4

crowding, pathology, ankylosed deciduous tooth, supernumeraries, genetic disorders

Question 5

where to palpate for mandibular premolars

Answer 5

lingual displacement palpable

Question 6

where are supernumerary teeth commonly

Answer 6

palatal in maxilla or premolar/third molar

Question 7

types of supernumerary

Answer 7

conical
tuberculate

Question 8

where are conical supernumerary present

Answer 8

between centrals - mesiodens

Question 9

what happens with tuberculate supernumeraries

Answer 9

tend not to erupt but prevent eruption of adjacent teeth

Question 10

what are odontomes

Answer 10

complex formed by invaginations of tooth germ