#asktheexpert my twin daughters are one year old the older ones tooth are out but the younger ones tooth are still out.. is it ok?? Do I need to do anything

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It's common for twins to reach developmental milestones like teething at different times, and it's also normal for siblings to have variations in the timing of tooth eruption. Here's what you can expect and some steps you can take:

### 1. **Variation in Timing**:
- It's not unusual for siblings, including twins, to have differences in the timing of tooth eruption. Some babies may start teething earlier or later than others, and this is generally considered within the range of normal development.

### 2. **Genetic Factors**:
- Genetic factors can influence the timing of tooth eruption. If there's a family history of early or late tooth eruption, it could contribute to differences between your twins.

### 3. **Individual Differences**:
- Each child is unique, and their development may progress at their own pace. Just because one twin's teeth have erupted doesn't necessarily mean there's cause for concern if the other twin's teeth are still coming in.

### 4. **Monitor Progress**:
- Keep an eye on your younger twin's gum line for signs of teething, such as swelling, redness, or increased drooling. Teeth typically erupt in a specific order, but there can be variations. If you're unsure, consult your pediatrician.

### 5. **Provide Comfort**:
- Offer teething toys or chilled (not frozen) teething rings to help soothe your younger twin's gums as they teethe. You can also gently massage their gums with a clean finger to provide relief.

### 6. **Maintain Oral Hygiene**:
- Even before teeth erupt, it's essential to establish good oral hygiene habits. Clean your baby's gums gently with a soft, damp cloth after feedings to remove bacteria and prevent buildup.

### 7. **Nutrition**:
- Continue to provide a nutritious diet rich in vitamins and minerals to support your twins' overall health and development, including the development of their teeth and gums.

### 8. **Regular Check-ups**:
- Schedule regular check-ups with a pediatrician or pediatric dentist to monitor your twins' oral health and development. They can provide guidance specific to your twins' needs and address any concerns you may have.

### 9. **Consult a Pediatric Dentist**:
- If you have concerns about your younger twin's tooth development or if they haven't started teething by around 18 months of age, consider consulting a pediatric dentist for an evaluation.

### 10. **Stay Patient**:
- Remember that developmental milestones like teething can vary widely among children, even among siblings. Stay patient and supportive as you monitor your twins' progress.

In most cases, differences in the timing of tooth eruption among siblings, including twins, are nothing to worry about. However, if you have specific concerns or if you notice any signs of abnormal development, don't hesitate to seek guidance from healthcare professionals.