Really need help!!!!!!about part I

[Avani]

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when primary teeth start to calcify?

 

[make you smile]

During the 6th week of pregnancy,formation of the primary teeth commences and by eight weeks all of primary teeth are discernable--decks (tooth histology).
Anyone can throw more light on this?

 

[kupra]

when primary teeth start to calcify?

5th wk of intrauterine life .....formation of tooth start....but calcification of all primary primary teeth occur during 4 to 6th month of intrauterine life.👍

 

[Avani]

During the 6th week of pregnancy,formation of the primary teeth commences and by eight weeks all of primary teeth are discernable--decks (tooth histology).
Anyone can throw more light on this?

wikipedia says that the development starts about 2 mon and the calcification starts about 14th week.😕😕😕

 

[Avani]

5th wk of intrauterine life .....formation of tooth start....but calcification of all primary primary teeth occur during 4 to 6th month of intrauterine life.👍

thanks for your reply!
so,the first calcification should appear about 4th month?😕

 

[make you smile]

5th wk of intrauterine life .....formation of tooth start....but calcification of all primary primary teeth occur during 4 to 6th month of intrauterine life.👍

Can you please quote the source?

 

[kupra]

Can you please quote the source?

decks.

 

[kupra]

thanks for your reply!
so,the first calcification should appear about 4th month?😕

yes.....in the decks there is table for primary teeth calcification and enamel formation etc.

 

[Avani]

yes.....in the decks there is table for primary teeth calcification and enamel formation etc.

thank you～～！！！

 

[Avani]

one more question please

what is the optimal width of alginate？a paper says at least 2mm,is that true?😕😕