Influence of implant protrusion length on non-grafting osteotome sinus floor elevation with simultaneous implant: a 3- to 9-year retrospective study

International Journal of Implant Dentistry

Table 2 Multiple linear regression model for factors influencing ESBG

Parameter	Unstandardized coefficients		Standardized coefficients	t	Sig.
Parameter	B	Std. error	Beta	t	Sig.
Intercept	−0.240	0.585		−0.411	0.682
Factors
IPL	0.692	0.061	0.860	11.367	0.000^*
RBH	0.008	0.060	0.015	0.139	0.889
Follow-up period	−0.016	0.026	−0.036	−0.587	0.558
Covariables
Gender
Female	−0.086	0.123	-0.049	−0.696	0.488
Male	0	0
Age
61-80	0.353	0.179	0.160	1.969	0.052
41-60	0.191	0.144	0.105	1.322	0.189
21-40	0	0
Periodontal status
Treated periodontitis	0.057	0.142	0.030	0.398	0.691
Non-periodontitis	0	0
Smoking status
Smoking	−0.052	0.148	−0.025	−0.352	0.725
Non-smoking	0	0
Implant site
Molar	0.237	0.188	0.073	1.259	0.211
Premolar	0	0
Implant length
10 mm	0.779	0.460	0.386	1.694	0.094
8 mm	0.439	0.308	0.179	1.426	0.157
6 mm	0.	0
Implant width
4.3 mm	−0.191	0.354	−0.030	−0.539	0.591
5.0 mm	0	0
Implant system
Nobel	−0.009	0.188	−0.005	−0.050	0.960
Bicon
Prosthesis type
Multiple-unit FDP	−0.165	0.158	−0.068	−1.043	0.300
Single crown