Although cases like Katzenbach and Heart of Atlanta Motel stretched Congress' power to regulate under the Commerce Clause, United States v. Lopez, 514 U.S. 549 (1995) restricted the Commerce Clause's reach.
Toothbrushes have been around for hundreds of years. In fact, the first known toothbrushes were used about 5,000 years ago and were made of twigs. The Prophet Mohammed introâ¦duced the use of the miswak (toothbrush) to the middle east about 1,300 years ago.
According to Wikipedia, the earliest instrument that resembled what we now call a toothbrush is dated around 3000 B.C. Prior to 3000 B.C., it is likely that our ancestors unintentionally cleaned their teeth by chewing on various types of plant life.