• Embrasure space • Ideal occlusion • Maxillary cuspid • Steepest cusp incline • Y shaped occlusal grove • Cervical buldge • point angle • line angle • biting forces • haplodont

1.  Perikymata on tooth  normal development
 Mandibular 1st molar  lingually incline
 Axial  maxillary central incisor
 Distal ridge of canine is longest
 4 point angles in anterior teeth
 Mesial surface of 1st premolar with amalgam filling  increase
breakage
 Ideal occlusion facial cusp of maxillary posterior teeth oppose
 groves and embrasure
 Embrasure space  reflection of form of teeth involved
 Curvature of cervical line of most of the teeth  1mm less
distally than mesial
 Biting forces at molar region during mastication  90-200
pound
 Biting forces at premolar during mastication  50 -100 pounds
 Biting forces at incisor during mastication  20-55 pounds
 Haplodont  single conical cusp and single root
 Faciolingual angulation of upper central incisor  28*
 Tip of cusp  primary of formation of each lobe
 C shaped tooth  mandibular 2nd molar
 Point angle in all teeth  4
 Posterior teeth  8 line angles
 Anterior teeth  6 line angles
 Maxillary cuspid  occasionally shows three developmental
depression on its labial surface
 Fissure groves on lingual surface of maxillary 1 and 2 molar
 Y shaped occlusal grove  mandibular 2nd premolar
 Steepest cusp incline  maxillary 1 premolar
 Distolingual cusp is poorly developed in maxillary 2nd molar
 Deciduous maxillary 1 molar resemble to premolar
 Largest mesiodistal diameter in primary teeth mandibular
2nd molar

2.  Largest faciolingual diameter in primary deciduous maxillary
2 molar
 Smallest root in  mandibular central incisor
 Single central pit  mandibular 2nd premolar
 Cusp of carebelli  present on mesial half palatal surface of
permanent maxillary molar and in deciduous teeth present on
maxillary 2nd molar
 Cervical buldge  characteristic of deciduous teeth