Consistent high levels can indicate a problem in the home, as well as high indoor levels of spores relative to outdoor levels. Spores of Aspergillus and Penicillium are the same size and shape, so these are often reported as Penicillium/Aspergillus.
The front teeth are the first to erupt at around six to eight months; the back teeth erupt between 18 and 24 months. Teething, sometimes referred to as cutting teeth, occurs until all 20 primary teeth are in place. This is normally around two and a half years of age.
Sometimes a permanent tooth will erupt behind a baby tooth, forming a double row of teeth. It happens more often in the front teeth (incisors). The baby tooth will usually fall out within a week or two because of the pressure and the permanent one will move to its normal place without problems.