You Do Need power plug adapter while traveling from Panama to Myanmar (Burma).

Here is Why You Need An Adapter

The outlet and plug type used in Myanmar (Burma) are A, C, D, G and I and in Panama are A and B. This is how they look like.

Panama

In Panama, outlets of type A and B are in use.

Type A

Type B

Myanmar (Burma)

In Myanmar (Burma), outlets of type A, C, D, G and I are in use.

Type A

Type C

Type D

Type G

Type I