Hybrid Prosthesis versus Overdenture: Effect of BioHPP Prosthetic Design Rehabilitating Edentulous Mandible

Table 1

Comparison between Group I (BioHPP hybrid prosthesis) and Group II (BioHPP bar overdenture) regarding the amount of bone loss of mesial and distal surfaces of anterior and posterior implants at different intervals.

			0–6 months		0–12 months		0–18 months		P value
			M	SD	M	SD	M	SD
Posterior	Distal	Group I	0.14^a	0.007	0.26^b	0.011	0.35^c	0.013
		Group II	0.09^a	0.004	0.16^b	0.006	0.21^c	0.008
		P value
	Mesial	Group I	0.12^a	0.006	0.23^b	0.009	0.31^c	0.012
		Group II	0.11^a	0.005	0.2^b	0.008	0.23^c	0.009
		P value
	Overall	Group I	0.13	0.0065	0.245	0.01	0.33	0.0125
		Group II	0.1	0.0045	0.18	0.007	0.22	0.0085
		P value
Anterior	Distal	Group I	0.14^a	0.007	0.22^b	0.009	0.28^c	0.011
		Group II	0.13^a	0.006	0.19^b	0.008	0.21^c	0.009
		P value
	Mesial	Group I	0.23^a	0.011	0.41^b	0.016	0.5^c	0.019
		Group II	0.18^a	0.009	0.27^b	0.011	0.31^c	0.013
		P value
	Overall	Group I	0.185^a	0.009	0.315^b	0.0125	0.39^c	0.015
		Group II	0.155^a	0.0075	0.23^b	0.0095	0.26^c	0.011
		P value

M, mean; SD, standard deviation. difference (). ^a,b,cValues with the same superscript letters were insignificantly different () whereas values with different superscript letters were significantly different ().