Sentence 1: Norbert had to go to the dentist after his lunch break. 
 Sentence 3: He quickly searched his desk, looking for some dental floss or gum 
 Sentence 4:  Luckily, he found a full travel dental kit in the back of his drawer 
 Sentence 5:  Norbert and his dentist both had a pleasant time during his visit 
 Option 1: Norbert had eaten some Greek salad and his teeth were not their best. 
 Option 2: Norvert aye ate a Greek salad then brushed his teeth and was ready for the dentist.