Fig. 2

Schematic of measurements taken through the sagittal view of the tooth and mandibular alveolar bone. CHB crestal height buccal, measured from the CEJ to the buccal crestal bone, CHL crestal height lingual, measured from the CEJ to the lingual crestal bone, LA lower anterior bone thickness at the apex, LP lower posterior bone thickness at the apex, crest width the width of the alveolar bone from the buccal crestal bone to the lingual crestal bone, CEJ width the width of the CEJ, root length measured from the incisal tip to the apex of the root, width at apex width of the alveolar bone at the apex of the tooth, perpendicular to the long axis of the tooth