Table 2: Summary of outcomes of included articles. CBCT= cone beam computed tomography; CT= computed tomography; US= ultrasound.

Author, year Measurements Findings Conclusion
Points Examiner Repeteability
Bohner et al., 2017 Dental implant to bone surface at apical and 5mm above 1 3 No difference between CBCT and physical measurements CBCT is accurate
Bohner et al., 2019 Dental implant to bone surface at apical and 5mm above 1 3 No difference between CBCT and US to the control group Trueness of US was similar to the one of CBCT
Chan et al., 2018 Outsurface of bone crest and implant surface 1mm from the bone crest 1 1 The mean absolute difference
among groups ranged
from 0.033 to 0.24 mm.
Ultrasound can accurately measure bone dimensions
Degen et al., 2016 Distance between dental implant and bone surface 1 1 Median deviation was higher for ultrasound (US) (0.23mm) compared to CBCT measurements (0.19mm) US showed a high potential for bone evaluation
Gonzáles-Martín et al., 2015 1mm apical to the bone crest 2 1 CBCT underestimated buccal bone Devices presented low accuracy to measure bone
Liedke et al., 2018 Distance between bone and implant surface from occlusal view 3 1 Low resolution jeopardize bone detection CBCT overestimated bone thickness
Marotti et al., 2019 Distance between implant and bone surface along the long axis of the implant 2 1 US and CBCT showed similar measurement values to optical scanner US presented a higher accuracy in comparison to CBCT
Rásko et al., 2016 Measurements were made at each thickness level 1 1 Deviation increased with a reduced bone thickness CBCT was not accurate, especially for thin bone
Razavi et al., 2010 Distance between dental implant and bone surface at implant threads 3, 6 and 9mm from the top of the implant 10 2 Bone thickness calculation showed a mean deviation of 0.14±0.15mm for Accuitomo and 0.46±0.24mm for I-CAT. For bone level, the mean deviation was 0.76±0.57mm to Accuitomo and 2.10±1.58mm to I-CAT i-CAT did not produce sufficient resolution for the thin bone
Ritter et al., 2014 From dental implant middle to bone surface, 4mm above apical of implant. 2 2 Mean deviation ranged from 0.06 to 2.61mm to CBCT and 0.12 to 0.43 to IR CBCT provided usable information about bone dimension
Sheridan et al., 2018 At the implant
platform and apex
- 1 No statistical difference was found in images with and without implants Dental implants to not hamper the measurements of bone thickness by CBCT
Shiratori et al., 2012 Dental implant to bone surface at apical and 5mm above 1 3 Mean difference for CBCT was 0.04±0.01mm for bone thickness and 0.13±0.86mm for bone level CBCT is accurate
Vanderstuyft et al., 2019 2,4, and 6mm to the implant shoulder 1 1 Bone thickness was underestimated by 0.3mm CBCT underestimated bone thickness