Difference in marginal bone loss around implants between short implant-supported partial fixed prostheses with and without cantilever: a retrospective clinical study

International Journal of Implant Dentistry

Table 2 Data on marginal bone loss distributed by implants in different locations within 2-implant-cantilevered prostheses

Follow-up^a	n	Implant adjacent to cantilever	Implant distant from cantilever	p value^b
Follow-up^a	n	mean ± SD (min, max)		p value^b
0–1 year	110	− 0.17 ± 0.32 (− 1.39, 0.01)	− 0.22 ± 0.42 (− 1.59, 0.00)	0.592
1–2 years	36	− 0.70 ± 0.50 (− 1.66, 0.38)	− 0.61 ± 0.45 (− 1.61, 0.12)	0.407
2–3 years	22	− 0.87 ± 0.69 (− 2.89, 0.00)	− 0.77 ± 0.46 (− 2.22, 0.14)	0.925
3–4 years	18	− 0.99 ± 0.75 (− 2.55, 0.08)	− 1.00 ± 0.63 (− 2.39, 0.04)	0.743
4–5 years	24	− 0.94 ± 0.61 (− 2.42, 0.00)	− 1.07 ± 0.49 (− 1.98, − 0.11)	0.328
5–10 years	74	− 1.52 ± 0.83 (− 4.38, − 0.26)	− 1.52 ± 0.75 (− 3.76, − 0.41)	0.719
10–15 years	35	− 1.78 ± 0.83 (− 4.28, − 0.69)	− 1.93 ± 0.87 (− 3.30, 0.18)	0.772
15–30 years	30	− 2.19 ± 0.61 (− 3.59, − 1.18)	− 2.15 ± 0.73 (− 3.37, − 0.88)	0.804

Values in millimeters. Negative values correspond to bone loss
SD standard deviation
^aNot all implants had radiological follow-up under all these follow-up periods, and some implants could have had more than one radiological follow-up under the same follow-up period
^bComparison of the mean values between implants in different positions; Mann–Whitney test