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Periodontal Disease - Radiological Diagnosis
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Normal periodontium - Normal appearing lamina dura and periodontal space (black arrow). Alveolar crest (white arrow) at the same level as cemento enamel junction (CEJ).
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Horizontal bone loss
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Vertical bone loss
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Early grade 3 Periodontal disease. Notice regression of alveolar crest below the cemento-enamel junction (CEJ).
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Advanced grade 3 Periodontal disease - Less than 50% bone loss around roots
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Grade 4 Periodontal disease - Greater than 50% bone loss around distal root of mandibular fourth premolar
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Mandibular fracture due to bone loss from advanced periodontal disease
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Furcation exposures
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Normal-appearing gingiva around maxillary incisors (5 year old Maltese dog)
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Radiographs show marked bone loss around central incisor (5 year old Maltese dog)
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Flap surgical exposure showing bone loss (5 year old Maltese dog)
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Splinted incisors after guided tissue regeneration (GTR) implant placed. (5 year old Maltese dog)
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Gingival recession around maxillary canine (6 year old mixed breed dog)
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Marked bone loss around canine with moderate appearing recession (6 year old mixed breed dog)
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Minimal inflammation around canine teeth (10 year old feline)
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8 mm probe depth (10 year old feline)
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Advanced loss of bone support around canines due to periodontal disease (10 year old feline)
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Feline gingiva recession apical to mandibular molar (4 year old cat)
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Marked bone loss mesial root mandibular molar (4 year old cat)
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Root exposure prior to extraction (4 year old cat)
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Minimal-appearing gingiva recession (5 year old Labrador Retriever)
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Marked bone loss around distal root of mandibular fourth premolar (5 year old Labrador Retriever)
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Surgical exposure of affected root (5 year old Labrador Retriever)
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