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[Image analysis] ```json
{
"visible_domain [Image analysis] ```json
{
"visible_domain": "dental_photo",
"image_quality": {
"score": "good",
"issues": []
},
"description": "Intraoral photo of the lower dental arch taken from an occlusal view. Teeth are generally clean but notable calculus and staining are present on the lingual surfaces of the lower anterior teeth, especially in the area around a fixed lingual retainer. There is a large metal restoration (possibly an amalgam or metal crown) on the left mandibular first molar. On the right mandibular posterior area, there is a tooth presenting significant dark discoloration and apparent crown destruction, possibly due to severe caries or failed restoration. Gingiva appears generally pink but with localized swelling or changes near the damaged posterior tooth. The photo is well-focused and provides a full view of the lower arch. No visible text, labels, or patient-identifying information.",
"dental_observations": {
"applicable": true,
"teeth_present": "partial",
"teeth_condition": [
{
"location": "anterior_lower",
"observation": "Notable green and brown calculus and staining around the lingual fixed retainer, especially between the canines and incisors.",
"severity_signal": "moderate"
},
{
"location": "lower_left_first_molar",
"observation": "Large metal restoration (crown... |