ACJ Quiz – Pediatric dentistry (age distinction) X ray 01

lower first molar and lower and upper incisors are erupted so patient is above 6, but lower lateral are not erupted so patient is less than 7.

patient is between 8-9 because the lower canine is not erupted yet

lower laterals are erupted, upper laterals are not erupted, patient is between 7-8 years old

this patient has upper canine erupted that normally erupts around 11 years old, but premolars are not erupted and the patient is more than 10

here we do not have the normal sequence of eruption as the lower canines are not erupted completely but lower and upper premolars first premolars are completely erupted

upper laterals are erupted bur lower canine is not

lower laterals are out but upper laterals are not

Crown completion of permanent lateral and central incisors are 4-5 years old, as lateral is still half completed, patient is less than 4 years old

crown completion of central and lateral incisors are evident, root initiation of central incisor is 4-5 years old but lateral incisor is 5-6 years old, there is no root initiation

lateral incisor crown just started forming the patient is 1-2 years old

central incisors just started which can be 3-4 months, but laterals has not started, patient is less than 1 year old

both central and lateral incisors fully crown completed but no root formation, patient is 4-5 years old

upper laterals are our but lower canines are just erupting, patient is less than 9 yers old

Patient was almost 7, first molar and central lower Is out so more than 6, upper central and lower laterals almost so most probably a bit  less than 7

Upper centrals are out, lower laterals has not still erupted, patient is more than 7 less than 8

First molars are recently came out as the roots are just half completed,

Lower lateral Incisors out maybe because of early lost of anterior teeth, but upper incisors are just erupting and lower canine has still at least 2 years.

Although first molars are not in occlusal plane but look at the root completion, definitely more than 7,Upper laterals are out, 8-9

first molar just erupte, lower centrals just came out and upper centrals are not erupted

patient is 6-7 the reason behind early eruption of lower lateral incisors is early loss of primary teeth that happened because of heavy caries

patient has upper canine out which happens around 12 years old and more reliable indicator of age than lower second premolars. Also second molars are close to eruption

Lower laterals erupte, upper laterals are still not erupted

upper laterals are out and lower canine are not erupted yet

first premolars are erupted which happens around 10 years old, it seems that lower canines are not completely erupted because of crowding. But the root formation of lower secod molars shows patient should be around 10 years old

upper laterals are missing, which make the age distinction more disficult, upper canines are not reliable, lower canines has half root formation and are close to eruption, lower first molar root eruptions are almost complete that happens after 8 years old normally.

upper canines are close to eruption

Although first premolar is out but lower canine can give us a more reliable predication.