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 3 Data on marginal bone loss distributed by implants in different locations within 2-implant prostheses with an intermediary pontic

Follow-up^a	n	Mesial implant	Distal implant	p value ^b
Follow-up^a	n	mean ± SD (min, max)		p value ^b
0–1 year	48	− 0.23 ± 029 (− 0.99, 0.00)	− 0.19 ± 0.28 (− 0.83, 0.30)	0.539
1–2 years	10	− 0.83 ± 0.89 (− 2.40, 0.03)	− 0.76 ± 0.68 (− 2.23, 0.14)	0.853
2–3 years	16	− 0.92 ± 0.88 (− 2.69, 0.14)	− 0.87 ± 1.05 (− 3.99, 0.00)	0.539
3–4 years	8	− 1.37 ± 1.01 (− 2.84, − 0.01)	− 1.08 ± 0.97 (− 2.41, 0.04)	0.505
4–5 years	5	− 0.75 ± 0.57 (− 1.55, − 0.01)	− 1.53 ± 1.41 (− 3.84, 0.00)	0.421
5–10 years	25	− 1.68 ± 1.16 (− 3.93, 0.00)	− 1.71 ± 1.29 (− 4.12, 0.05)	0.907
10–15 years	14	− 1.25 ± 0.40 (− 1.74, − 0.43)	− 1.40 ± 1.35 (− 5.11, 0.00)	0.734
15–30 years	21	− 1.42 ± 0.72 (− 2.49, − 0.46)	− 1.95 ± 1.23 (− 5.31, − 0.29)	0.089

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