Sentence 1: During my recent visit, my dentist told me that I had no new cavities. 
 Sentence 3: I had also started a daily regimen of flossing twice a day 
 Sentence 4:  This all paid off 
 Sentence 5:  After this, I plan to also start using an oral rinse every day 
 Option 1: For the past year, I had been diligent in brushing my teeth. 
 Option 2: For the past year, I had been obsessed in brushing my teeth.