Table 3.

Description of the included treatment-arms with respective outcome measures in terms of achieved bone width

Author	Implant area	Treatment arms	No. of observations	Bone width at implant placement mm (SD)	Healing period/follow-up
Aimetti et al. 2018 [21]	Anterior	DBBM + collagen and membrane Spont. healing	15 15	6.65 (1.41) 3.99 (1.30)	12 months
Ben Amara et al. 2021 [23]	Anterior and molar	DBBM + collagen and membrane Spont. healing	18 16	7.65 (4.45) 4.04 (3.83)	6 months
Iorio-Siciliano et al. 2017 [22]	Anterior and molar	DBBM and membrane Spont. healing	10 10	9.70 (2.30) 9.80 (1.50)	6 months
Iorio-Siciliano et al. 2020 [16]	Anterior and molar	DBBM + collagen and membrane DBBM and membrane Spont. healing	12 13 15	7.80 (1.90) 8.20 (2.10) 8.70 (2.90)	6 months
Jonker et al. 2021 [18]	Anterior	DBBM + collagen and collagen matrix DBBM + collagen and CTG Spont. healing	25 25 25	7.53 (1.37) 7.06 (1.67) 5.68 (2.30)	2 months
Jung et al. 2013 [17]	Anterior	DBBM + collagen and soft-tissue graft DBBM + collagen and membrane Spont. healing	10 10 10	5.79 (2.12) 5.13 (1.50) 5.77 (1.24)	6 months
Jung et al. 2018 [15]	Anterior and molar	DBBM and membrane Spont. healing	18 18	7.73 (3.56) 7.26 (3.89)	3 and 6 months
Machtei et al. 2019 [19]	Anterior	DBBM Spont. healing	11 11	7.25 (1.90) 5.35 (1.20)	4 months
Stumbras et al. 2021 [20]	Anterior	DBBM and membrane Spont. healing	10 10	7.22 (0.86) 5.99 (0.73)	3 months

DBBM = deproteinized bovine bone mineral; CTG = connective tissue graft