Sentence 1: Abbey was at the orthodontist. 
 Sentence 3: She could redeem the card for a frosty at Wendy's 
 Sentence 4:  Abbey asked her parents to take her there right after her appointment 
 Sentence 5:  The cold ice cream felt good on her gums 
 Option 1: When everything had finished up they gave her a free toothbrush. 
 Option 2: When everything had finished up they gave her a freebie card.