Table 3.

The effects of eruption level of the impacted third molar on periodontal status of the adjacent sextant at baseline and 1, 3, and 6 months after surgery

	Baseline		1 month after surgery		3 months after surgery		6 months after surgery
	Erupted	Unerupted	Erupted	Unerupted	Erupted	Unerupted	Erupted	Unerupted
PIa	1.65±0.68	1.23±0.65	1.19±0.44	0.86±0.59	0.85±0.38	0.56±0.34*	0.57±0.22	0.42±0.18*
GIa	1.56±0.56	1.27±0.64	1.03±0.34	0.77±0.49	0.82±0.35	0.63±0.35	0.47±0.28	0.47±0.34
BOPb	34.38±24.61	20.70±26.69	17.33±17.14	10.16±18.80***	5.97±8.51	5.47±9.65	1.99±4.04	2.34±6.40
PDb	3.17±0.70	2.89±0.69	2.77±0.34	2.66±0.46	2.56±0.41	2.36±0.43	2.14±0.33	2.02±0.37
EA-OSb	13.27±0.94	13.25±0.89	12.80±0.73	13.02±0.68	12.57±0.74	12.78±0.64	12.17±0.63	12.13±0.42
AC-CEJb	3.35±0.89	4.06±1.35	3.52±0.94	4.48±1.14**	2.95±0.81	3.68±0.81**	2.59±0.77	3.15±0.79***

PI, GI, and BOP for the teeth in the adjacent sextant to the third molar needing extraction; PD, JE-OS, and AC-CEJ for the second molar adjacent to the third molar needing extraction; ^at-test, ^bMann-Whitney test; significance at P<0.05, *P≤0.001, **P≤0.01, and ***P<0.05. PI: Plaque Index; GI: Gingival Index; BOP: Bleeding on probing; PD: Pocket depth; AC-CEJ: Alveolar bone crest and cementoenamel junction; JE-OS: Junctional epithelium to the occlusal surface; EA-OS: Epithelial attachment and the adjacent second molar’s occlusal surface