Kindly go for scaling of teeth later followed by proper tooth brushing techniques and use of mouthwashes as  for maintaining good oral hygiene . I hope this answer your question.

Go for scaling first.then maintain good oral hygiene

Hi mam....      Pain in your gums may due to poor oral hygiene and the white stonish mass is the hard deposits on your teeth that needs to be cleaned(scaling) by dentists...    Sensitivity may also due to    **Decaying  of teeth that reaches inner layer of your teeth     **Sometimes the hard deposits in your teeth may cause gum recession which also leads to sensitivity of the teeth If the sensitivity is due to hard deposits, scaling (cleaning) will solve the problem.. If the sensitivity is due to decaying, then simple filling has to be done with tooth coloured material You need to take X_ray(IOPA) of sensitive teeth region done....

Hi...You need to maintain proper oral hygiene.Visit your nearby dentist and get scaling done.

Visit nearest dentist for scaling.

You require scaling and polishing ( cleaning) of teeth to remove plaque and tartar. Consult a dentist to do the needful. After that continue brushing twice a day and use a good mouthwash