Get scaling and polishing done.
Brush twice daily.
Clean your tongue with tongue scraper post brushing.
Do warm saline rinses 3 to 4 times a day.
Rinse after every meal.
Maintain oral hygeine
Next Steps
Visit a local dentist for tooth pain and get it Physically evaluated and an X-ray followed by treatment required.
Health Tips
If throat pain is persistent,would suggest consult an ENT specialist.