3. Introduction Maxillary incisors are four in number Maxillary central incisor and lateral are similar in anatomy and complement each other in function Their major function is to cut food Maxillary central incisor erupts between the age of 7 and 8 and it is the second permanent tooth to erupt Maxillary lateral incisor erupts between the age of 8 and 9 Dr.Syed Sadatullah King Khalid University Abha
18. Dr.Syed Sadatullah King Khalid University Abha Incisal ridge Incisal aspect Bilaterally symmetrical
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20. Dr.Syed Sadatullah King Khalid University Abha 3.5 2.5 6.0 7.0 7.0 8.5 13.0 10.5 Curvature of Cervical Line M D Labiolingual Diameter at Cervical Line Labiolingual Diameter at Crest of Curvature Mesiodistal Diameter at Cervical Line Mesiodistal Diameter at Contact Area Root Length Crown Length Average Dimensions in millimeters Contact Area Max C.I Mesial Distal I 3 JIM 3 I 3 - Incisal third JIM 3 -Junction of incisal & middle third CHRONOLOGY Appearance of enamel organ 5 m.i.u First evidence of calcification 3-4 months Crown completion 4-5 years Eruption 7-8 years Root completion 10-11 years
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24. Dr.Syed Sadatullah King Khalid University Abha Labial aspect Lingual aspect Mesial aspect Distal aspect
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