Study Year of
publication 		Patient Materials and methods Primary outcome measures Secondary outcome measures
VARH
(mm) 		Implants Prosthetic solution TBL
(months) 		LOP
(months) 		Survival (%) Primary
implant
stability 		PIMBL
Mean (SD) mm 		PPROM Biological and
technical
complications
ST Implants
Pistilli et al [23] 2013 20 5 - 7 SI: 41 Partial fixed prostheses 4 12 100 100 ≤ 25 Ncm: 12% Loading: 1-year: 1-month: Number of
complications: 0
0.59 (0.05) 1.05 (0.06) PPT: 20a
SLI: 47 90 93.6 ≤ 2 5 Ncm: 9% 0.55 (0.05) 1.07 (0.06) PPT: 0 Number of
complications: 10b
Esposito et al. [24] 2014 15 5 - 7 SI: 26 Partial fixed prostheses 4 36 93.3 92.3 < 25 Ncm: 4% Loading: 1-year: 3-year: NR Number of
complications: 9
0.3 (0.13) 1.20 (0.49) 1.44 (0.44)
0.22 (0.08) 1.20 (0.47) 1.63 (0.52) Number of
complications: 12
Felice et al. [25] 2014 30 7 - 8 SI: 60 Partial fixed prosthesis 4 60 81.5 91.7 < 25 Ncm: 7% Loading: 1-year: 3-year: 5-year: NR Number of
complications: 6
1.37 (0.53) 1.79 (0.54) 1.98 (0.46) 2.24 (0.47)
30 SLI: 61 80 95.1 < 25 Ncm: 19% 1.21 (0.42 1.65 (0.42 2.43 (0.75) 3.01 (0.74)c Number of
complications: 25d
Bernardi al. [26] 2018 36 < 9 SI: 86 Cemented single crowns NR 12 NR 94.2 NR NR NR Number of
complications: 3
SLI: 84 84.5 Number of
complications: 22e
Bolle et al. [27] 2018 20 5 - 6 SI: 43 Fixed prosthesis 4 12 95 95.7 < 25 Ncm: 14% Loading: 4 months: 1-year: NR Number of
complications: 2
0.24 (0.11) 0.40 (0.12) 0.51 (0.16)
20 SLI: 38 94.7 97.4 < 25 Ncm: 10% 0.34 (0.08)f 0.52 (0.1)g 0.77 (0.21)h Number of
complications: 11i
Gastaldi et al. [28] 2018 20 5 - 7 SI: 32 Fixed prosthesis 4 36 94.7 96.9 < 25 Ncm: 3% Loading: 1-year: 3-year: NR Number of
complications: 8
0.68 (0.27) 1.18 (0.29) 1.33 (0.38)
20 SLI: 31 90 93.5 < 25 Ncm: 19% 0.79 (0.25) 1.36 (0.28) 1.7 (0.36)j Number of
complications: 17k

aP-value <0.0001 (exact McNemar test), bP-value < 0.0078 (exact McNemar test), cP-value < 0.0001 (analysis of covariance), dP-value < 0.0001 (Fishers exact test), eP-value < 0.05 (Fishers exact test), fP-value = 0.001 (t-test), gP-value = 0.002 (t-test), hP-value < 0.001 (t-test), iP-value = 0.01 (Chi-square test), jP-value = 0.02 (t-test), kP-value = 0.008 (Fishers exact test).
LOP = length of observation period after implant loading; M = months; PIMBL = peri-implant marginal bone loss; PPROM = profesional and patient-reported outcome measures; PPT = patient preferred treatment; SD = standard deviation; SI = short implant; SLI = standard length implant; ST = suprastructures; TBL = time before loading; VARH = vertical alveolar ridge height.