Influence of Root Canal Fillings on Alveolar Bone Crest Level—An Observational Cross Sectional CBCT Analysis

The aim of this study was to compare the alveolar bone crest (ABC) level root canal filled (RCF) teeth without apical periodontitis with corresponding non-filled in same individual using three-dimensionally cone-beam computed tomography (CBCT) data. Two hundred and thirty-five matching pairs RCF were selected from a pool 580 random CBCT-images (voxel size 160–200 µm). Teeth periodontitis, perio-endodontic lesions or surgical endodontic treatment excluded. distance between cemento–enamel-junction (CEJ) ABC assessed centrally mesial, distal, palatal/lingual buccal at each tooth (∑1880 measuring points) standardized manner. Topographic, gender, age-related relationships also noted. Data analyzed Kruskal–Wallis-test. ABC-level (2.64 ± 1.25 mm) (2.61 1.16 did not differ significantly (p > 0.05). No differences concerning localization (maxilla/mandible, type) gender 0.05) occurred. Overall, maxilla (2.74 1.48 lower < 0.001) compared mandibular (2.50 1.41 mm). Patients >41 years had ABC-levels than younger patients Men showed reduced women In conclusion, are identical their non-RCF counterparts, least terms crestal level, regardless location type patient. Thus, is an essential pillar for long-term preservation.