For upper right and lower left third molars with serrated offset
beaks, paired with 139.

For upper left and lower right third molars with serrated offset
beaks, paired with 138.

For upper molars with slightly festooned beaks.

For big lower molars with flat beaks. A little bigger than 7.

For lower right molars and the first bicuspids with flat beaks,
Paired with 204.