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. 2021 Jun 3;17(1):194–203. doi: 10.1016/j.jds.2021.05.003

Table 1.

Demographic data of the participants in the control groups and the test groups.

Characteristic NanoBone® (Control group, n = 15) 3DP HA (Test group, n = 15) p-value
Age, mean ± SD, (years) 60.13 ± 2.31 years 60.33 ± 1.54 years 0.825
Gender n (%) Male, n (%) 2 (13.33%) 3 (20%)
Female, n (%) 13 (86.67%) 12 (80%)
Periodontal parameters, mean ± SD, (mm) Keratinized tissue 4.67 ± 1.82 mm 4.19 ± 1.41 mm 0.432
PPD 3.59 ± 0.94 mm 3.99 ± 1.21 mm 0.320
Tooth types (%) Anterior, n (%) 1 (6.67%) 2 (13.33%)
Premolar, n (%) 14 (93.33%) 13 (86.67%)
Location Maxillary, n (%) 8 (53.33%) 9 (60%)
Mandible, n (%) 7 (46.67%) 6 (40%)
Causes of extraction Endodontic failure, n (%) 6 (40.0%) 7 (46.66%)
Periodontitis, n (%) 5 (33.33%) 4 (26.67%)
Fractures, n (%) 4 (26.67%) 4 (26.67%)

SD, standard deviation; n, number; mm, millimeter; 3DP HA, 3D printed nano-porous hydroxyapatite; PPD, periodontal probing depth.