Table 1 Classification of research types
From: A systematic review of the accuracy of digital surgical guides for dental implantation
Type of research | Number | Type of clinical study | Number |
|---|---|---|---|
In vitro | 21 | – | – |
In vivo | Â | Â | Â |
 Cadaver | 2 | – | – |
Clinical | 17 | Case–control study | 3 |
Clinical trial | 11 | ||
Cohort study | 3 | ||
Comparison of in vitro and in vivo | 1 | Case–control study | 1 |