International Journal of Implant Dentistry

Table 10 Time to implant failure

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

		Patient level (%)	p value	Implant level (%)	p value
Maxilla
	≤ 24 months	97.1	0.037*	98.6	0.0014**
	> 24 months	99.3	0.037*	99.8	0.0014**
Mandible
	≤ 24 months	98.8	0.99	99.7	0.99
	> 24 months	98.8		99.6
Maxilla	≤ 24 months	97.1	0.15	98.6	0.009**
Mandible	≤ 24 months	98.8		99.7

*p < 0.05, **p < 0.01: Chi-square test

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