Rough Dentogram ( clustering based on segment distance )

   AE 92  95  
   !  
   9--AE 81  84  
   !     
   5-----AE 45  46  
   !        
   2--------AL 38  44  
   !           
   7-----------AL 78  80  
   !              
   !              AH 47  57  
   !              !  
   1--------------3--AH 28  37  
   !                    
   6--------------------AH 64  77  
   !                       
   8-----------------------AL 85  91  
   !                          
   4--------------------------AL 58  63  
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