Masticatory Ability for a Single Implant Mandibular Overdenture Retained by Two Different Attachments: A Randomized Controlled Trial

Table 5

Mean scores and standard deviation of change in masticatory ability from baseline to 6-, 12-, and 24-month follow-up for patients of the ball and CM-LOC attachment group.

Group		Baseline–6-month follow-up	Baseline–12-month follow-up	Baseline–24-month follow-up
Ball	Mean	−9.42	−11.46	−11.72
	SD	12.426	14.625	12.368
CM-LOC	Mean	−10.86	−12.47	−10.88
	SD	9.775	12.006	11.963
	value	0.774	0.826	0.778

SD: standard deviation. is considered statistically significant.