Probe:	Gli3 probe2
Probe preparation:	Antisense labelled with S35 RNA

Structure	Level	Pattern	Image	Note
TS19: mandibular process	Present		1F	Expression of Gli3 was widespread.
TS19: maxillary process	Present		1F	Expression of Gli3 was widespread.

Structure	Level	Pattern	Image	Note
TS20: mandibular process	Present	Regionally restricted	1L	Gli3 was significantly more localized in the mesenchyme around the tooth germs than at previous stages of development.
TS20: maxillary process	Present	Regionally restricted	1L	Gli3 was significantly more localized in the mesenchyme around the tooth germs than at previous stages of development.

Structure	Level	Pattern	Image	Note
TS21: lower jaw incisor	Strong	Regionally restricted	1R	In the molars and mandibular incisors, Gli3 was expressed uniformly in the mesenchyme surrounding the dental organ.
TS21: lower jaw molar	Strong	Regionally restricted	1R	In the molars and mandibular incisors, Gli3 was expressed uniformly in the mesenchyme surrounding the dental organ.
TS21: upper jaw molar	Strong	Regionally restricted	1R	In the molars and mandibular incisors, Gli3 was expressed uniformly in the mesenchyme surrounding the dental organ.
TS21: upper jaw incisor	Strong	Regionally restricted	1R	In the maxillary incisors, the mesenchymal expression was greater on the buccal side of the tooth germ.

Structure	Level	Pattern	Image	Note
TS22: lower jaw mesenchyme	Present	Regionally restricted	1X	Expression is in the mesenchyme surrounding the dental organ.
TS22: upper jaw mesenchyme	Present	Regionally restricted	1X	Expression is in the mesenchyme surrounding the dental organ.
TS22: molar mesenchyme	Weak		1X
TS22: enamel organ	Absent		1X , 1D'