When a Radiograph Reveals Periodontal Ligament Spa...
Understanding the Radiographic Clue
A radiograph showing widening of the periodontal ligament (PDL) space is a subtle yet critical finding that can guide precise diagnosis and treatment planning. The PDL, a fibrous connective tissue anchoring the tooth to the alveolar bone, typically measures 0.15–0.30 mm in width on radiographs. When this space appears asymmetrically enlarged —often ...