The long-term evaluation of the prognosis of implants with acid-etched surfaces sandblasted with alumina: a retrospective clinical study

Maxillofacial Plastic and Reconstructive Surgery

Table 7 Survival rate and marginal bone loss according to fixture length

Length	Survival rate	Marginal bone loss (1 year)	Marginal bone loss (final observation)
7.0 mm	14/15 (93%)	0.34 mm	0.5 mm
8.5 mm	9/9 (100%)	0.44 mm	0.64 mm
10.0 mm	37/39 (95%)	0.36 mm	0.51 mm
11.5 mm	23/23 (100%)	0.34 mm	0.51 mm
13.0 mm	8/10 (80%)	0.4 mm	0.58 mm

There was no statistically significant difference between the groups. (p = 0.185)