Thanks for your question.
Dont worry it will be alright.The yellowish discolouration of your teeth are most probably after tetracycline
treatment.Though i will also like to rule out other causes of yellowish teeth staining as well.
Answer me few questions:
Are you on any other medications?
Do you have trauma to your teeths?
Do you have Jaundice?
If your answer to above questions is no then you can go for treatment of tetracycline induced staining of teeths by following modalities:
1) Tooth whitening
2) Composite bonding (full or partial) over discoloured areas
3) Combination treatment starting with tooth whitening and continuing to direct veneers.
4) Laminate veneers (with or without prior tooth whitening)
5) Full coverage restorations.
Consult your Dentist
for these treatment options.
Wish you a healthy life.