Site-Specific Nanoindentation Hardness of Human Root Cementum and Corresponding Alveolar Cortical Bone: Associations with Uncalibrated CBCT and Micro-CT Gray-Value Indices

Background/Objectives: The local mechanical properties of periodontal supporting tissues influence their responses to orthodontic forces. This exploratory study sought to evaluate site-specific nanoindentation hardness in human root cementum and adjacent alveolar cortical bone and examine its association with cone-beam computed tomography (CBCT)- and micro-computed tomography (micro-CT)-derived relative imaging indices.