Thanks for your question on Health Care Magic.
I can understand your concern.
Yes, your CT findings can be due to toothache and
tooth infection.
Your CT findings are suggestive of
lung Infection at hilum.
Aspiration pneumonia is commonly seen in right hilum. Dental infections are common cause for aspiration pneumonia.
So your tooth infection can cause right hilar infection.
So better to start dual antibiotics with anaerobic coverage.
Also take
mucolytic, expectorant and antioxidant drugs.
Since all these drugs are prescribed medicines, you need doctor's prescription for them.
Don't worry, with proper treatment, you will be alright.
Hope I have solved your query. Wish you good health. Thanks.