Table 5. The implant survival rates of the overdenture.

Condition		No. of implants	Failed implants	Survival rate (%)	P value
Implant diameter	Narrow	2	0	100	.846
	Regular	13	2	84.6
	Wide	2	0	100
Location of implant placed	Anterior	6	2	66.7	.197
	Posterior	11	0	100
Restored arch	Maxilla	6	2	66.7	.138
	Mandible	11	0	100
Implant connection type	Internal	3	0	100	.705
	External	14	2	85.7