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Table 3 Malocclusion, caries, oral hygiene and gingivitis profile of study participants (N = 495)

From: Association between malocclusion, caries and oral hygiene in children 6 to 12 years old resident in suburban Nigeria

VariablesCaries present
n = 74
Caries absent
n = 421
P valueGood oral hygiene
N = 195
N (%)
Fair/poor oral hygiene
N = 300
N (%)
P valueMild gingivitis
N = 361
N (%)
Moderate/Severe gingivitis
N = 134
N (%)
P valueTotal
N = 495
N (%)
Age
 6–12 years74 (14.9%)421 (85.1%) 195 (39.4%)300 (60.6%) 361 (72.9%)134 (27.1%) 495 (100%)
Sex
 Male30 (40.5%)212 (50.4%)0.11989 (45.6%)153 (51.0%)0.244175 (48.5%)67 (50.0%)0.763242 (48.9%)
 Female44 (59.5%)209 (49.6%)106 (54.4%)147 (49.0%)186 (51.5%)67 (50.0%)253 (51.1%)
Crowding
 Present25 (33.8%)92 (21.9%)0.02650 (25.6%)67 (22.3%)0.39793 (25.8%)24 (17.9%)0.068117 (12.6%)
 Absent49 (66.2%)329 (78.1%)145 (74.4%)233 (77.7%)268 (74.2%)110 (82.1%)378 (76.4%)
Spacing
 Present45 (60.8%)252 (59.9%)0.877119 (61.0%)178 (59.3%)0.707210 (58.2%)87 (64.9%)0.173297 (60.0%)
 Absent29 (39.2%)169 (40.1%)76 (39.0%)122 (40.7%)151 (41.8%)47 (35.1%)198 (40.0%)
Increased overjet
 Present14 (18.9%)77 (18.3%)0.89737 (19.0%)54 (18.0%)0.78555 (15.2%)36 (26.9%)0.00391 (18.4%)
 Absent60 (81.1%)344 (81.7%)158 (81.0%)246 (82.0%)306 (84.8%)98 (73.1%)404 (81.6%)
Reverse overjet
 Present3 (4.1%)21 (5.0%)0.7249 (4.6%)15 (5.0%)0.84620 (5.5%)4 (3.0%)0.21824 (4.8%)
 Absent71 (95.9%)400 (95.0%)186 (95.4%)285 (95.0%)341 (94.5%)130 (97.0%)471 (95.2%)
Anterior open bite
 Present2 (2.7%)19 (4.5%)0.4518 (4.1%)13 (4.3%)0.90110 (2.8%)11 (8.2%)0.00821 (4.2%)
 Absent72 (97.3%)402 (95.5%)187 (95.9%)287 (95.7%)351 (97.2%)123 (91.8%)474 (95.8%)
Increased overbite
 Present2 (2.7%)20 (4.8%)0.4027 (3.6%)15 (5.0%)0.45719 (5.3%)3 (2.2%)0.12122 (4.4%)
 Absent72 (97.3%)401 (95.2%)188 (96.4%)263(95.0%)342 (94.7%)131 (97.8%)473 (95.6%)
Buccal crossbite
 Present5 (6.8%)7 (1.7%)0.0093 (1.5%)9 (3.0%)0.2879 (2.5%)3 (2.2%)0.86912 (2.4%)
 Absent69 (93.2%)414 (98.3%)192 (98.5%)291 (97.0%)352 (97.5%)131 (97.8%)483 (97.6%)
Lingual crossbite
 Present2 (2.7%)7 (1.7%)0.5591 (0.5%)8 (2.7%)0.1598 (2.2%)1 (0.7%)0.2369 (1.8%)
 Absent72 (97.3%)414 (98.3%)194 (99.5%)292 (97.3%)353 (97.8%)133 (99.3%)486 (98.2%)