My daughter, who is a twin, doesn't have any teeth yet. She and her brother were born six weeks early. My son has four teeth so far, but he did not get them until he was 11 months old.
When it comes to teeth coming in, twins don't always follow the same timeline. They may also have a different bite, different shade of teeth and different shape. There are studies that show that baby boys and girls have different eruption schedules. What's more, premature children's teeth may erupt later than if they had been carried to term.
Our parenting advice is given as suggestions only. We recommend you also consult your healthcare provider, and urge you to contact them immediately if your question is urgent or about a medical condition.