Peri-Implant Bone Loss at Implants Placed in Preserved Alveolar Bone Versus Implants Placed in Native Bone: A Retrospective Radiographic Study

Table 7: Comparison in the control and test groups of the peri-implant bone loss in the maxilla versus mandible.

Native Bone	Dental Arch	N	Mean (mm)	SD (mm)	P-value
Rx 6 Mes	Maxilla	59	1.2051	0.7968	<0.001*
Rx 6 Mes	Mandible	81	0.7895	0.5560	<0.001*
Rx 6 Dis	Maxilla	59	1.2720	0.8799	<0.001*
Rx 6 Dis	Mandible	81	0.7623	0.6115	<0.001*
Rx 12 Mes	Maxilla	26	1.1327	0.4905	0.010*
Rx 12 Mes	Mandible	24	0.7583	0.4977	0.010*
Rx 12 Dis	Maxilla	26	1.2596	0.7782	0.049*
Rx 12 Dis	Mandible	24	0.8625	0.5889	0.049*
DFDBA (300-500 µm)	Dental Arch	N	Mean (mm)	SD (mm)	P-value
Rx 6 Mes	Maxilla	56	0.7455	0.7504	0.040*
Rx 6 Mes	Mandible	16	1.2125	0.9049	0.040*
Rx 6 Dis	Maxilla	56	0.7661	0.7289	0.207
Rx 6 Dis	Mandible	16	1.0281	0.7174	0.207
Rx 12 Mes	Maxilla	22	1.2591	0.8556	0.285
Rx 12 Mes	Mandible	1	0.3000	–	0.285
Rx 12 Dis	Maxilla	22	1.2705	0.8160	0.579
Rx 12 Dis	Mandible	1	0.8000	–	0.579