The second dental assistant trips over the carpet sweeper and another squabble starts in the back room.

The dentist prepares the nitrous oxide anaesthetic (also known commonly as "laughing gas" due to its effects prior to and after unconsciousness).

With the man unconscious he pulls his tooth, but then he can't get him to wake up, so he calls for Charlie and runs off when the latter arrives.

The dentist then returns and Charlie is sent to the drug store to get a prescription for the unconscious man.

He continues fighting with the news-stand man, who receives a brick in the face and thus loses his teeth.

He picks the prettier of the two female patients in the waiting room to go in, causing the other lady to leave in indignance.

A reviewer from Motion Picture News wrote, "Besides getting into a fight with two of his master's patients and getting generally in the way, [Chaplin] doesn't do anything except create roars of laughter.