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| The cervical area of the tooth, between the enamel of the crown and the alveolar bony margin, has neither enamel nor bone superimposed and is therefore less radiodense. This is referred to as '''“cervical burn-out”''' and should not be mistaken for [[Dental Caries|caries]] or dental resorption. The bone of the alveolar margin should be relatively horizontal and positioned 1 to 2 mm apical to the cementoenamel junction. The interradicular marginal bone often has a slightly convex contour, filling the furcation area and closely approximating the contour of the furcation. In contrast, the interalveolar marginal bone (margin of septal bone) can have a horizontal, a slightly concave, or a slightly convex contour depending on the proximity of the adjacent roots and the particular region in the arch. | | The cervical area of the tooth, between the enamel of the crown and the alveolar bony margin, has neither enamel nor bone superimposed and is therefore less radiodense. This is referred to as '''“cervical burn-out”''' and should not be mistaken for [[Dental Caries|caries]] or dental resorption. The bone of the alveolar margin should be relatively horizontal and positioned 1 to 2 mm apical to the cementoenamel junction. The interradicular marginal bone often has a slightly convex contour, filling the furcation area and closely approximating the contour of the furcation. In contrast, the interalveolar marginal bone (margin of septal bone) can have a horizontal, a slightly concave, or a slightly convex contour depending on the proximity of the adjacent roots and the particular region in the arch. |
| <br><br> | | <br><br> |
− | '''Nutrient Canals''' - The nutrient canals referred to here are those that contain blood vessels and nerves that supply the teeth, interdental spaces and [[gingiva]]. In radiographs, these are seen as radiolucent lines of uniform width, which sometimes have radiodense borders. The most easily identified nutrient canal is the mandibular canal. Other nutrient canals, which may be seen, are the canal or groove that occupies the posterior superior alveolar artery and the anterior palatine (incisive) canal. | + | '''Nutrient Canals''' - The nutrient canals referred to here are those that contain the blood vessels and nerves that supply the teeth, interdental spaces and [[gingiva]]. In radiographs, these are seen as radiolucent lines of uniform width, which sometimes have radiodense borders. The most easily identified nutrient canal is the mandibular canal. Other nutrient canals, which may be seen, are the canal or groove that occupies the posterior superior alveolar artery and the anterior palatine (incisive) canal. |
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| '''Mandibular Symphysis''' - A fibrous joint, present as a thin radiolucent irregular line on radiographs. | | '''Mandibular Symphysis''' - A fibrous joint, present as a thin radiolucent irregular line on radiographs. |
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| '''Mandibular Canal''' | | '''Mandibular Canal''' |
| <br> | | <br> |
− | '''Deciduous Teeth''' – Thin narrow roots, may be resorbing, underlying tooth buds may be present | + | '''Deciduous Teeth''' – Thin narrow roots, may be resorbing, underlying tooth buds may be present. |
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− | '''Immature Permanent Teeth''' – Thin dentin, wide pulp, incomplete apex formation (open apex) | + | '''Immature Permanent Teeth''' – Thin dentin, wide pulp, incomplete apex formation (open apex). |
| <br> | | <br> |
− | '''Mature Permanent Teeth''' – Thicker dentin, apex closed and pulp thinner | + | '''Mature Permanent Teeth''' – Thicker dentin, apex closed and thinner pulp. |
| <br><br> | | <br><br> |
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| [[Category:Teeth - Anatomy & Physiology]] | | [[Category:Teeth - Anatomy & Physiology]] |
| [[Category:To Do - Dentistry Images]] | | [[Category:To Do - Dentistry Images]] |
− | [[Category:To Do - Dentistry preMars]] | + | [[Category:To Do - Mars Check]] |