Broke Dipstick update: Has to be part defect. See & Advise me

I got three pieces of the dipstick out. See pics. The dipstick clearly broke on the stamping of the T. It looks like it got chewed up a bit as well. Not to bad. I found about 3 flakes of metal in the pan.

My plan. Flush pan 3 times with 3 qts of oil. Then just run it.

How much life did it take off my motor?

What else should I do?

I did find about 4 of 5 pieces of this white latex material in the oil change. I think its gasket maker Is it?

Thanks