Table 15: Gingival recession (GR) index according to RPD design.

RPD design Gingival Recession Total P-value
Yes No
N % N % N %
Clasps 60 80.0 15 20.0 75 100.0 X2=9.91
*P=0.0016
Attachments 6 37.5 10 62.5 16 100.0
Total 66 72.5 25 27.5 91 100.0