Panoramic Evaluation

Question 1

what are the things we need to look for on a pano

Answer 1

• basic anatomy
• pathology
• eruption sequence
• congenitally missing teeth
• supernumerary teeth
• crowding/spacing
• ankylosed teeth
• impacted teeth
• primary teeth that arent resorbing
• ectopically erupting teeth
• canine eruption

Question 2

where are supernumerary teeth most commonly found

Answer 2

in the anterior maxilla

Question 3

what do supernumerary teeth do

Answer 3

• disrupt normal eruption
• disrupt alignment and spacing

Question 4

what should you do with supernumerary teeth

Answer 4

extract as soon as you can without harming adjacent developing teeth

Question 5

what do ankylosed teeth do

Answer 5

• delays eruption of permanent tooth
• causes abnormal eruption path of permanent tooth
  -permanent successor will bring bone into the area if vertical bony defect is present

Question 6

what should you do with ankylosed teeth

Answer 6

• extract when it causes eruption problems
• if no permanent successor need to extract as soon as it is diagnosed to avoid large vertical bony defect in the area

Question 7

what is ectopic eruption

Answer 7

• permanent tooth resorbs a primary tooth other than the one it is to replace
• permanent tooth resorbs another permanent tooth as it erupts

Question 8

ectopic eruption of the permanent maxillary canines can lead to:

Answer 8

• canine impaction
• resportion of lateral incisor roots

Question 8

what is the tx for ectopic eruption of canines

Answer 8

extract primary canines to normalize the path of the erupting canine

Question 9

what is the primary eruption sequence

Answer 9

• maxillary:
• CI: 8-12 months
• LI: 9-13 months
• canine: 16-22 months
• first molar: 13-19 months
• second molar: 25-33 months
• mandibular:
• CI: 6-10 months
• LI: 10-16 months
• Canine: 17-23 months
• first molar: 14-18 months
• second molar: 23-31 months

Question 10

what is the shedding pattern of the deciduous dentition

Answer 10

• Maxillary:
• CI: 6-7 years
• LI: 7-8 years
• canine: 10-12 years
• first molar: 9-11 years
• second molar: 10-12 years
• mandibular:
• CI: 6-7 yeras
• LI: 7-8 years
• canine: 9-12 years
• first molar: 9-11 years
• second molar: 10-12 years

Question 11

what is the eruption sequence of the permanent dentition

Answer 11

• maxillary:
• CI: 7-8 years
• LI: 8-9 years
• canine: 11-12 years
• first PM: 10-11 years
• second PM: 10-12 years
• first molar: 6-7 years
• second molars: 12-13 years
• third molar: 17-21 years
• mandibular
  -CI: 6-7 years
• LI: 7-8 years
• canine: 9-10 years
• first premolar: 10-12 years
• second premolar: 11-12 years
• first molar: 6-7 years
• second molar: 11-13 years
• third molar: 17-21 years