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.
Root formation continues under the gums. Baby teeth can be fully formed in as little as 3 years. Permanent molars can take up to 9 years to form. For example 6 year molars are already beginning to form at birth, and don't fully mature until about a year after they erupt. Teeth form under the gums and eventually about 1/3 of the tooth erupts into the mouth.