![Figure 2.](/ServeContent?url=http%3A%2F%2Fdbm.sagepub.com%2Fcontent%2F6%2F1758736015576009%2FF2.medium.gif)
Figure 2.
Subjective attachments: (a) ball-type attachment (BA), (b) locator-type attachment (LA), and (c) round-bar attachment (RA).
BA: 9.6 mm; LA: 7.5 mm; RA: 7.2 mm.
The height from the upper of implant to the top of the attachment male part.