Subependymal grey matter heterotopia, also known as periventricular heterotopia, is the most common form of grey matter heterotopia and is characterised by nodules of grey matter located immediately beneath the ependyma of the lateral ventricles. It can be divided according to morphology into 2 :
The cost of crown molding depends largely on the material, finish, and detail of the design you choose. Basic styles may cost as little as $2-$3 per linear foot, while custom designed and cut moldings prepared by a finish carpenter cost $8-$10 or more per linear foot.
1 Porcelain-fused-to-metal crowns can cost $500-$1,500 or more per tooth. 2  For example, CostHelper readers without insurance coverage report paying $875-$1,400 for porcelain-fused-to-metal crowns, at an average cost of $1,093. There may be separate charges for an initial exam ($20-$100 or more) and dental X-rays ($10-$250). 2  If the tooth has extensive decay, become infected or been injured, a root canal ($300-$1,500 for a front tooth, $500-$2,000 for a molar) might be needed before the crown can be installed.