Research Article
circRNA CDR1as Regulated the Proliferation of Human Periodontal Ligament Stem Cells under a Lipopolysaccharide-Induced Inflammatory Condition
Figure 1
Representative intraoral dental radiographs of donors. (a) Radiograph of a donor with periodontitis shows severe periodontal loss. (b) Radiograph of a healthy donor undergoing teeth extractions for orthodontic treatment purposes. The arrows indicate the teeth that will be extracted.
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