Rough Dentogram ( clustering based on segment distance )

   TE306 313  
   !  
   5--TE297 302  
   !     
   4-----TL303 305  
   !        
   !        TL292 296  
   !        !  
   3--------2--TH289 291  
   !              
   !              TH330 333  
   !              !  
   !              8--TL325 329  
   !              !     
   !              7-----TH274 289  
   !              !        
   6--------------1--------TH315 324  
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