For big lower molars with flat and longer beaks, a strong spring.

For upper & lower molars with flat beak.

For upper left and lower right buccal molars’ subgingival cavities. The buccal side has wider fringe slightly festooned beaks. Paired with 25.

For lower left and upper right buccal molars’ subgingival cavities. The buccal side has wider fringe slightly
festooned beaks. Paired with 24.

For upper and lower molars with flat beaks, wide view.