The Effect of Mini Dental Implant Number on Mandibular Overdenture Retention and Attachment Wear

Table 3

The mean of the inner ring diameter of all groups pre- and posttesting, read 2, measured two weeks after the first reading.

Groups	Pretest inner ring diameter (mm)		Posttest inner ring diameter (mm)
	Read 1	Read 2	Read 1	Read 2
2 MDIs
3 MDIs
4 MDIs