Hello, my name is***** and I will try my best to provide you with the answer to your question.
I am afraid that I agree with your dentist. With that much mobility, bone loss and drifting that your best course is to see the periodontist
asap. If getting there or finances are a problem,however, I would recommend a deep cleaning
with your general dentists hygienist if that is an option.
At home remedies are less than ideal but you can do the following just to try and keep the dentition cleaner and arrest further damage.
1. Use a slurry of baking soda and hydrogen peroxide to brush your teeth.
2. rinse with warm salt water. (use one teasp salt to 6 oz warm water. rinse and repeat until gone) do this two or three times a day.
3. use a proxy brush to clean between teeth.
If you can, purchase a sonic tooth brush. The vibrations make removal of plaque buildup easier.
I hope that helps. Try these things and get to the specialist asap as your dentist prescribed. Please ask more if you need to. Thanks.