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Table 18 Risk factors for survival rate multivariate analysis (odds ratio)

From: The All-on-four concept for fixed full-arch rehabilitation of the edentulous maxilla and mandible: a longitudinal study in Japanese patients with 3–17-year follow-up and analysis of risk factors for survival rate

 

Risk factor

Odds ratio

p value

Implant-related factors

   

Implant length

 < 10 mm

1.97

 > 0.05

Primary stability

 < 35 Ncm

0.54

 > 0.05

Angle of implant placement

Tilted

1.57

 > 0.05

Patient-related factors for patient-level

   

Treatment area

Maxilla

1.54

 > 0.05

Sex

Male

1.40

 > 0.05

Systemic disease

Presence

1.01

 > 0.05

Smoking

Smoking

1.98

 > 0.05

Patient-related factors for implant-level

   

Treatment area

Maxilla

5.68

 < 0.01**

Sex

Male

2.35

 > 0.05

Systemic disease

Presence

0.51

 > 0.05

Smoking

Smoking

2.58

 > 0.05

  1. *p < 0.05, **p < 0.01: logistic regression analysis