Table 6.

Vertical densitometric analysis in relation to mandibular canal (MC) visibility scoring

MC part for visibility evaluation	JDS part for vertical densitometric analysis
	AC-MC-V	MC-V	MC-IB-V	IB-V	AC-IB-V	SMCP	IMCP
Medial inferior	–a	4 [97.1 (4.2)] and 5 [81.5 (3.9)] (p = 0.01)	–a	1 [111.4 (5.6)] and 5 [89.6 (4.3)] (p = 0.03), 3 [121.2 (4.2)] and 4 [98.6 (4.2)] (p = 0.02), 3 [121.2 (4.2)] and 5 [89.6 (4.3)] (p = 0.01)	3 [115.7 (7.0)] and 5 [95.1 (3.5)] (p = 0.04)	1 [122.4 (7.5)] and 5 [99.3 (4.8)] (p = 0.04), 4 [114.3 (4.1)] and 5 [99.3 (4.8)] (p = 0.02)	–a
Distal superior	4 [119.7 (3.5)] and 5 [142.0 (8.5)] (p = 0.03)	–a	4 [91.7 (3.7)] and 5 [110 (7.6)] (p = 0.04)	4 [95.3 (3.2)] and 5 [111.5 (2.2)] (p = 0.04)	1 [107.0 (4.5)] and 5 [124.6 (5.4)] (p = 0.04), 4 [106.9 (2.6)] and 5 [124.6 (5.4)] (p = 0.01)	–a	4 [110.3 (3.4)] and 5 (127.4 (6.8)] (p = 0.04)

JDS, jaw dental segment; SE, standard error.

MC part for visibility evaluation, JDS MC visibility evaluation in medial inferior and distal superior parts (in visibility scores: 1, 2, 3, 4, 5); JDS part for vertical densitometric analysis: JDS measurement part for vertical densitometric analysis [measurement values are presented as mean (SE) in relative measurement units]: AC-MC-V, from the alveolar crest in the trabecular bone to the bone 2.0 mm over the MC; MC-V, in the MC region; MC-IB-V, from the trabecular bone below the MC to the superior border of the inferior cortical bone; IB-V, in the inferior cortical bone region; AC-IB-V, from the alveolar crest in the trabecular bone to the end of the inferior cortical bone; SMCP, at superior MC peak corresponding to the border of MC; IMCP, at inferior MC peak corresponding to the border of MC.

Statistically significant results are presented: “visibility score [vertical densitometric analysis value (SE)]” and “visibility score [vertical densitometric analysis value (SE)]” “(p-value)”.

^a“–” indicates no statistically significant difference.