Osteology

Deciduous and permanent dentition at six years

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Image #47-1

Osteology Deciduous and permanent dentition at six years Parts of the maxilla and mandible have been cut away to reveal the roots of the deciduous teeth and the nonerupted permanent teeth in various stages of development. The maxillary sinus has been opened. The permanent upper lateral incisor lies deep to the neighboring teeth and is not visible in the preparation. 1 . Maxillary sinus (opened) 2 . Molar II (permanent) 3 . Premolar II (permanent ) 4 . Alveolar process of maxilla 5 . Molar I (permanent) 6 . Molar II (deciduous) 7 . Molar I (deciduous) 8 . Molar II (permanent) 9 . Molar I (permanent) 10 . Molar II (deciduous) 11 . Premolar II (permanent) 12 . Upper pointer: Molar I (deciduous) Lower pointer: Premolar I (permanent) 13 . Mental foramen 14 . Piriform aperature 15 . Infraorbital foramen 16 . Canine (permanent) 17 . Medial incisor (permanent) 18 . Premolar I (permanent) 19 . Alveolar border 20 . Canine (deciduous) 21 . Medial incisor (deciduous) 22 . Lateral incisor (deciduous) 23 . Medial and lateral incisors (deciduous) 24 . Canine (deciduous) 25 . Medial incisor (permanent) 26 . Lateral incisor (permanent) 27 . Canine (permanent)