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Table 7 Summary of the comparison of DI and CI, and each parameters’ effect regarding trueness of DI. CI, conventional impression; DI, digital impression; IOS, intraoral scanner

From: Trueness and precision of digital implant impressions by intraoral scanners: a literature review

  DI vs CI Difference in IOS Inter-implant distance Implant angulation Implant depth Scan range/edentulous type Experience of operator
Van der Meer et al. 2012 [13]        
Giménez B et al. 2015 [18]     × ×  
Papaspyridakos et al. 2015 [37]     × (< 15°)    
Ajioka et al. 2016 [14] DI > CI       
Amin et al 2016 [23] DI > CI      
Mangano et al. 2016 [25]       ×  
Chia et al. 2017 [31]        
Fukazawa et al. 2017 [12]        
Gimenez et al. 2017 [40] DI is acceptable    ×   
Imburgia et al. 2017 [28]        
Alikhasi et al. 2018 [19] DI > CI    ×    
Marghalani et al. 2018 [9]        
Menini et al. 2018 [39] DI > CI       
Arcuri et al. 2019 [26]        ×
Di Fore et al. 2019   Depends on IOS     
Kim RJY et al. 2019 [28]        
Mangano et al. 2019 [24]        
Tan et al. 2019 [10] Depends on IOS       
  1. : significant effect was observed, : effect was observed without statistical significance, ×: no effect was observed