Rough Dentogram ( clustering based on segment distance )

   1L 96 103  
   !  
   5--1H 84  95  
   !     
   9-----1L139 151  
   !        
   4--------1H 28  41  
   !           
   6-----------1H104 119  
   !              
   10-------------1H152 167  
   !                 
   !                 1L130 138  
   !                 !  
   !                 8--1H119 129  
   !                 !     
   !                 11----1H167 180  
   !                 !        
   !                 7--------1H 69  84  
   !                 !           
   !                 1-----------1H 13  28  
   !                 !              
   2-----------------3--------------1L 42  68  
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