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Table 5 Correlations between PPD and characteristics

From: Correlations between clinical parameters in implant maintenance patients: analysis among healthy and history-of-periodontitis groups

Characteristics

H group correlation (R s )

HP group correlation (R s )

Age

0.040 n.s.

0.209*

Number of teeth (at the beginning of implant treatment)

0.027 n.s.

− 0.355**

Number of extracted teeth

0.369*

0.284**

Maintenance period (month)

0.193 n.s.

0.234*

  1. n.s. not significant, * p < 0.05, **p < 0.01