Table 3 Mean approximate time (number of days of life) of occurrence of the factor that caused the disturbance in the tooth enamel.
From: Disturbances in primary dental enamel in Polish autistic children
Tooth type | Accentuated line | Autistic boys n = 15 | Healthy boys n = 7 | ||||
|---|---|---|---|---|---|---|---|
n | Mean | SD | n | Mean | SD | ||
i1 | 1 | 12 | 38.5 | 19.5 | – | – | – |
2 | 7 | 60.3 | 17.8 | – | – | – | |
3 | 4 | 79.0 | 7.3 | – | – | – | |
4 | 2 | 90.0 | 12.7 | – | – | – | |
i2 | 1 | 1 | 54.0 | – | 2 | 72.0 | 9.9 |
2 | 1 | 69.0 | – | – | – | – | |
3 | 1 | 83.0 | – | – | – | – | |
4 | 1 | 100.0 | – | – | – | – | |
m1 | 1 | 1 | 107.0 | – | 1 | 43.0 | – |
2 | – | – | – | 1 | 69.0 | – | |
3 | – | – | – | 1 | 120.0 | – | |
4 | – | – | – | – | – | – | |
m2 | 1 | – | – | – | 1 | 51.0 | – |
2 | – | – | – | 1 | 105.0 | – | |
3 | – | – | – | – | – | – | |
4 | – | – | – | – | – | – | |
m1 | 1 | 1 | 59.0 | – | 1 | 36.0 | – |
2 | 1 | 90.0 | – | 1 | 87.0 | – | |
3 | – | – | – | – | – | – | |
4 | – | – | – | – | – | – | |
m2 | 1 | – | – | – | 2 | 61.0 | 5.7 |
2 | – | – | – | 2 | 132.0 | 17.0 | |
3 | – | – | – | – | – | – | |
4 | – | – | – | – | – | – | |
