Fourth molars, also called distomolars, are a variant in shape and number appearing as alterations during odontogenesis. They can be eumorphic or dismorphic, single or multiple, erupted or impacted, unilateral or bilateral, and can appear in both jaws. They are of unknown etiology, but there are several theories to justify these tooth alterations such as dental lamina duplication, its horizontal proliferation or its hyperactivity. Other factors can be hereditary factors, full division of tooth bud or phylogenetic regression. Fourth molars are found in a very important space, and when their own existence or the suitable extraction techniques are unknown, severe complications can frequently occur during and after surgery.
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Full Name Comment goes here. Are you sure you want to Yes No. Geneveive Sister , Student at University of the East. Kirstine Dawn Lopez. Zaid Alobbayat. Show More. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. Odontogenesis 1. Brian E. Esporlas 2. Stages in the life cycle of atooth1. GrowthPhysiologic processa.
Afte growth.. Dental lamina 2. Dental sac or follicle 3. Outer dental epithelium 4. Stellate reticulum 5. Inner dental epithelium 6. Dental papilla 7. Enamel cord 8. Enamel navel 9. Blood vessel Enamel niche Successional dental lamina Dental organ — will give rise to enamel tissueb. Dental papilla — give rise to dentin and pulpc.
Dental sac — give rise to cementum, pdl and alveolar bone. You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips.
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Odontogénesis (Embriología Dentaria)
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