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

Table 6: Comparison in the global group (test and control groups taken together) of the peri-implant bone loss in the maxilla versus mandible.

–	Dental Arch	N	Mean (mm)	SD (mm)	P-value
Rx 6 Mes	Maxilla	115	0.9813	0.8049	0.229
Rx 6 Mes	Mandible	97	0.8593	0.6407	0.229
Rx 6 Dis	Maxilla	115	1.0257	0.8454	0.032*
Rx 6 Dis	Mandible	97	0.8062	0.6339	0.032*
Rx 12 Mes	Maxilla	48	1.1906	0.6776	0.004*
Rx 12 Mes	Mandible	25	0.7400	0.4958	0.004*
Rx 12 Dis	Maxilla	48	1.2646	0.7872	0.026*
Rx 12 Dis	Mandible	25	0.8600	0.5766	0.026*