Steve-

Thanks for the quick reply.  My family dentist doesn't seem overly
concerned and x-rays are scheduled for next visit.  The thing that
concerns me is I read online (which I know isn't always true) that
often times delayed adult teeth are coupled with other development
delays; speech, fine motor skills, etc.  I'm curious if any
knowledgable person may have any experience with this.  My son did have
a speech articulation issue when younger, but with speech therapy has
overcome that.  He also has intermitent exotropia (similar to lazy eye)
that has been 90% corrected.  I'm very curious if these issues can be
tied together in some fashion.  Again, thanks in advance for your input.