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Table 4 Impact of accumulated risk factors on the implant failure rate

From: Long-term survival of implant-based oral rehabilitation following maxillofacial reconstruction with vascularized bone flap

Category

Risk factors

Patient in total (N)

Implants (N)

Failure (N)

Failure rate

A

Systemic disease

9

34

10

0.29

B

Oral hygiene

13

41

22

0.54

C

Irradiated flap

15

53

17

0.32

A + B

 

2

6

5

0.83

B + C

 

6

21

12

0.57

A + C

 

2

6

3

0.50

A + B + C

 

1

2

2

1.00