Screw type implants (ITI series) were implanted into the socket of extracted teeth of adult dogs to investigate the histologic recovery process of implantation. Two groups of
The phase transfer catalytic (PTC) bis-Wittig reaction between substitutedbenzaldehyde and 1,2- and 1,3-bisylides in the presence of K2Co3 was discussed.
文摘Screw type implants (ITI series) were implanted into the socket of extracted teeth of adult dogs to investigate the histologic recovery process of implantation. Two groups of
文摘The phase transfer catalytic (PTC) bis-Wittig reaction between substitutedbenzaldehyde and 1,2- and 1,3-bisylides in the presence of K2Co3 was discussed.
