1. Plural of periodontitis; inflammatory diseases of the tissues surrounding and supporting the teeth, including the gums, periodontal ligament, and alveolar bone.
Usage: medical/dental term; plural form

Examples

• The dentist diagnosed multiple periostitides in the patient's mouth during the examination.
• Untreated periostitides can lead to tooth loss if not managed properly.
• Advanced periostitides require professional periodontal treatment.
• Smoking increases the risk of developing severe periostitides.
• The study compared treatment outcomes for different types of periostitides.