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Table 3 Description of the included treatment-arms with respective outcome measures in terms of achieved bone width

From: Bone envelope for implant placement after alveolar ridge preservation: a systematic review and meta-analysis

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

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