Hi often for different Endo and prostho restorative materials extracted human teeth is used as a substrate. My question is do we quote it as an ex vivo or in vitro study. If the Pulp is Still present it is called ex vivo as the Pulp tissue is alive still. If for a post space preparation and further post material testing the Pulp is completely removed and dried do we still call the study ex vivo or we term it in vitro
In extracted teeth pulp will die and will not behave as vital pulp as blood supply is cut off so always been treat as in vitro study
The tooth was extracted so any study on it will considered exvivo study not in vitro.
Of course that pulp is not alive when you carry in some material in different time.Thats way we said in vitro.Like any orthodontist in searcheng for better bond strength we cut and take only the enamel, to explore WSL on enamel, ARI indeks,Enamel prismes,...
Thank You for questioning.
If the tooth is extracted then no more it will be called as in vivo as it will be outside the living organism. If you create the same oral environment outside the human being for example in a lab then it will be called ex- vivo. So experiment on extracted teeth can be considered as invitro unless and until you simulate the oral environment.
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