When children's permanent teeth come in substantially later than average, it is called delayed tooth eruption. In Factors Influencing Permanent Teeth Eruption, Ruta Almonaitiene, et al. argue that delayed tooth eruption does not normally indicate a medical problem. Instead, numerous sociological, lifestyle and genetic factors affect when a child's permanent teeth arrive.
When you factor in the residual values the vinyl fence will cost you about $168.00 per year while the western red cedar picket fence will cost you about $534.00 a year.
With professional installation, a 3'-4' tall wood picket fence can cost $10-$75 a foot, depending on local rates and the style and height of the fence, or $1,000-$8,000 for 100' and $3,000-$24,000 for 300'.