Radiographic measurement
tooth
CREST
The CBCT images were collected using the Planmeca 3D Imaging System (field-of-view of 8 cm (D) × 8 cm (H), resolution 0.16 mm, Planmeca, Finland). After being exported as digital imaging and communications in medicine (DICOM) files, the data were analyzed using planning software (Nobel Clinician, Nobel Biocare, Sweden) for GV measurement (Fig. Data import. The measurement point of GV. Schematic diagram of the identification of measurement point for GV. The GV measurement baseline is on the alveolar ridge’s crest. Following the long axis of the tooth, the red dot is a point for measuring bone density underneath 3 mm of baseline. The center part of the biopsy is the same as the GV-measured point of the CBCT image