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. 2017 Feb 28;47(1):51–63. doi: 10.5051/jpis.2017.47.1.51

Table 1. Demographic information.

Variables Test group (30 N force, n=12) Control group (5 N force, n=8) P value
Age, yr 54.92±9.70 55.75±8.00 0.91
Male/female 5/7 3/5 1.00
Mandible/maxilla 5/7 5/3 0.65
Reasons for extraction (periodontitis/fracture/dental caries) 6/1/5 4/0/4 0.69

Values are presented as number of patients or average±SD.

SD, standard deviation.