Doing a 24-hour urine collection for proteinuria and creatinine clearance is unnecessary because a spot urine sample to measure urine albumin to creatinine ratio is quite sufficient for diagnosis and therapy. More importantly, exercise, dietary protein, and sustained upright posture tend to increase albumin excretion rates.
As an orthodontist i see many panoramic x-rays of children as young as 8 with the earliest signs of wisdom tooth formation. Teeth take a long time to develop and erupt. Your top front permanent tooth, for example, that came in when you were about 7, began to form before you were born.
The milk teeth appear in the oral cavity between the ages of 6 months and 2.5 years. The first teeth to erupt are the lower medial incisors, at about 6 months. All of the deciduous teeth have been shed by about 12 years.