. Author manuscript; available in PMC: 2018 Nov 1.

Published in final edited form as: J Periodontol. 2017 Jun 23;88(11):1163–1172. doi: 10.1902/jop.2017.170117

Table II.

Gingival Blood Perfusion by Surgical conditions

		mean^Δ PU%±s.e	p-value
Primary wound closure (at surgery)	Yes (n=3)	31±24	<0.01
Primary wound closure (at surgery)	No (n=12)	154±34	<0.01
Wound Exposure (all time points)	Yes	175±28	<0.01
Wound Exposure (all time points)	No	50±28	<0.01
HP test (all time points)	Positive	162±31	0.01
HP test (all time points)	Negative	73±27	0.01
Thin biotype (at surgery)	Yes (n=7)	42 ± 55	0.666
Thin biotype (at surgery)	No (n=8)	77 ± 37	0.666
Surgical protocol (all time points)	SP (n=9)	89±18	0.057
Surgical protocol (all time points)	GBR (n=6)	193±32	0.057

GBR: guided bone regeneration; HP: H₂O₂; SP: socket preservation;

^Δ

difference from perfusion immediately prior to surgery (prior to local anesthesia)