Factors Influencing Resonance Frequency Analysis (RFA) Measurements and 5-Year Survival of Neoss Dental Implants

Table 10

Implant survival below and above at different threshold values at implant insertion and loading.

Variable	Groups	Implants placed	Implant failures		CSR^(1) (%)	Odds ratio	95% C.I.	value
			Overall	Early/late
ISQ at insertion	<60	39	2	1/1	94.9	1.90	0.4–8.6	0.314^(1)
	≥60	616	17	6/11	97.2	1
ISQ at loading	<60	6	0	0/0	100	N/A	N/A	1.0^(1)
	≥60	523	12	0/12	97.7
ISQ at insertion	<65	83	5	1/4	94.0	2.56	0.9–7.3	0.080^(1)
	≥65	572	14	6/8	97.6	1
ISQ at loading	<65	42	2	0/2	95.2	2.39	0.5–11.2	0.245^(1)
	≥65	487	10	0/10	97.9	1
ISQ at insertion	<70	151	10	2/8	93.4	3.90	1.6–9.7	0.004^(1)
	≥70	504	9	5/4	98.2	1
ISQ at loading	<70	101	7	0/7	93.1	6.30	1.9–20.2	0.003^(1)
	≥70	428	5	0/5	98.8	1
ISQ at insertion	<75	293	16	6/10	94.5	6.90	2.0–23.8	0.001^(1)
	≥75	362	3	1/2	99.2	1
ISQ at loading	<75	207	11	0/11	94.7	17.9	2.3–142.9	<0.001^(1)
	≥75	322	1	0/1	99.7	1

CSR: cumulative survival rate; ⁽¹⁾Fisher’s exact test.