Journal List > J Korean Assoc Oral Maxillofac Surg > v.36(1) > 1032426

Kim and Kim: Clinical study of maxillofacial trauma of children

Abstract

Purpose

To research about maxillofacial traumatic injuries of children in aspects of gender difference, various incidence rates between age, trauma type, cause, monthly and daily incidence rate, type of tooth damage, gingival damage, soft tissue damage, and type of facial bone fracture.

Materials and methods

Study group consisted of children under 15 years of age who visited Dental Hospital, School of Dentistry, Kyung Hee University from 2004/7/1 to 2007/6/30 with chief complaint of oral and maxillofacial traumatic injuries. 1,559 cases of traumatic injuries were studied from 1,556 (1,004 male, 552 female) children.

Conclusion

1. There were slightly more boys than girls, giving a male-to-female ratio of 1.82:1.0. The 1-3 year old boys and girls had the highest number of traumatic injuries.
2. Of the 1,556 patients, 68.63% had soft tissue injuries, 50.22% had periodontal injuries, 29.89% had teeth injuries, and 3.85% had maxillofacial bone fractures.
3. Falling down was the most common cause of injury in both sexes.
4. The months with the highest incidence rates were in order May (12.12%), June (11.74%), and October (11.13%). Most of the injuries occurred on weekends.
5. The most common tooth injury was uncomplicated crown fracture, and the most common periodontal injury was subluxation. The majority of traumatizes teeth were the upper central incisors.
6. The most common soft tissue injury was intraoral lacerations.
7. Mandibular fractures were most frequent in facial bone fractures; symphysis, condylar head, and angle fractures were most frequent in mandibular fractures; maxillary and nasal bone fractures were most frequent in midfacial bone fractures.

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Fig. 1.
Age distribution of injuries.
jkaoms-36-43f1.tif
Fig. 2.
Distribution of injuries according to causes and age.
jkaoms-36-43f2.tif
Fig. 3.
Distribution of injuries according to place of occurrence and age.
jkaoms-36-43f3.tif
Fig. 4.
Monthly distribution of injuries.
jkaoms-36-43f4.tif
Fig. 5.
Weekly distribution of injuries.
jkaoms-36-43f5.tif
Table 1.
Classification for teeth injuries.
Diagnosis Clinical findings
Uncomplicated crown fracture Fracture involves enamel or dentin and enamel; the pulp is not exposed.
Complicated crown fracture Fracture involves enamel and dentin and the pulp is exposed.
Crown-root fracture Fracture involves enamel, dentin and root structure; the pulp may or may not be exposed. Additional findings may include loose, but still attached, segments of the tooth
Root fracture The coronal segment may be mobile and may be displaced.
Table 2.
Classification for periodontal injury.
Diagnosis Clinical findings
Alveolar bone fracture The fracture involves the alveolar bone and may extend to adjacent bone. Segment mobility and dislocation are common findings. An occlusal change due to misalignment of the fractured alveolar segment is often noted.
Concussion The tooth is tender to touch or tapping; it has not been displaced and does not have increased mobility.
Subluxation The tooth is tender to touch or tapping and has increased mobility; it has not been displaced. Bleeding from gingival crevice may be noted.
Extrusive luxation The tooth appears elongated and is excessively mobile.
Lateral luxation The tooth is displaced, usually in a palatal/lingual or labial direction.
Intrusive luxation The tooth is displaced axially into the alveolar bone.
Avulsion The tooth is completely out of the socket.
Table 3.
Age and sex distribution of children with trauma.
Age Male Female Total
0 54 (5.37%) 36 (6.51%) 90 (5.77%)
1 183 (18.19%) 86 (15.55%) 269 (17.25%)
2 116 (11.53%) 87 (15.73%) 203 (13.02%)
3 101 (10.04%) 58 (10.49%) 159 (10.20%)
4 93 (9.24%) 39 (7.05%) 132 (8.47%)
5 74 (7.36%) 49 (8.86%) 123 (7.89%)
6 54 (5.37%) 32 (5.79%) 86 (5.52%)
7 61 (6.06%) 34 (6.15%) 95 (6.09%)
8 50 (4.97%) 40 (7.23%) 90 (5.77%)
9 39 (3.88%) 30 (5.42%) 69 (4.43%)
10 28 (2.78%) 10 (1.81%) 38 (2.44%)
11 33 (3.28%) 15 (2.71%) 48 (3.08%)
12 23 (2.29%) 9 (1.63%) 32 (2.05%)
13 31 (3.08%) 9 (1.63%) 40 (2.57%)
14 27 (2.68%) 10 (1.81%) 37 (2.37%)
15 39 (3.88%) 9 (1.63%) 48 (3.08%)
Total 1,006 (100%) 553 (100%) 1,559 (100%)
Table 4.
Category of injury.
Trauma type Male Female Total
Teeth injuries 299 167 466
(29.72%) (30.20%) (29.89%)
Periodontal injuries 513 270 783
(50.99%) (48.82%) (50.22%)
Soft tissue injuries 692 378 1,070
(68.79%) (68.35%) (68.63%)
Maxillofacial bone fractures 46 14 60
(4.57%) (2.53%) (3.85%)
Table 5.
Causes of injuries according to sex.
Causes Male Female Total
Fall down 595 358 953
(59.15%) (64.74%) (61.13%)
Sports 122 58 180
(12.13%) (10.49%) (11.55%)
Drop 76 37 113
(7.55%) (6.69%) (7.25%)
Traffic accident 50 37 87
(4.97%) (6.69%) (5.58%)
Collision 46 24 70
(4.57%) (4.34%) (4.49%)
Blow 41 5 46
(4.08%) (0.90%) (2.95%)
Other 76 34 110
(7.55%) (6.15%) (7.06%)
Total 1,006 553 1,559
(100.00%) (100.00%) (100.00%)
Table 6.
Distribution of injuries according to place of occurrence and sex.
Place Male Female Total
Inside Home 442 266 708
(43.94%) (48.10%) (45.41%)
Outside Home 460 251 711
(45.73%) (45.39%) (45.61%)
School 104 36 140
(10.34%) (6.51%) (8.98%)
Total 1,006 553 1,559
(100.00%) (100.00%) (100.00%)
Table 7.
Diagnosis of dental injuries in primary and permanent dentition.
Diagnosis Primary Dentition Permanent dentition
Uncomplicated crown fracture 215 (67.82%) 310 (73.46%)
Complicated crown fracture 24 (7.57%) 78 (18.48%)
Crown-root fracture 20 (6.31%) 13 (3.08%)
Root fracture 58 (18.30%) 21 (4.98%)
Total 317 (100.00%) 422 (100.00%)
Table 8.
Distribution of dental injuries in primary and permanent dentition.
Diagnosis Primary Dentition Permanent Dentition
Upper central incisor 221 (69.72%) 316 (74.88%)
Upper lateral incisor 33 (10.41%) 47 (11.14%)
Lower central incisor 32 (10.09%) 31 (7.35%)
Lower lateral incisor 12 (3.79%) 14 (3.32%)
Others 19 (5.99%) 14 (3.32%)
Total 317 (100.00%) 422 (100.00%)
Table 9.
Diagnosis of periodontal injuries in primary and permanent dentition.
Diagnosis Primary Dentition Permanent Dentition
Alveolar bone fracture 24 (2.31%) 59 (7.64%)
Concussion 66 (6.34%) 76 (9.84%)
Subluxation 585 (56.20%) 451 (58.42%)
Extrusive luxation 41 (3.94%) 21 (2.72%)
Lateral luxation 131 (12.58%) 49 (6.35%)
Intrusive luxation 106 (10.18%) 17 (2.20%)
Avulsion 88 (8.45%) 99 (12.82%)
Total 1,041 (100%) 772 (100%)
Table 10.
Distribution of periodontal injuries in primary and permanent dentition.
Diagnosis Primary dentition Permanent dentition
Upper central incisor 610 (55.60%) 429 (55.57%)
Upper lateral incisor 228 (21.90%) 164 (21.24%)
Lower central incisor 95 (9.13%) 107 (13.86%)
Lower lateral incisor 44 (4.23%) 46 (5.96%)
Others 64 (6.15%) 26 (3.49%)
Total 1,041 (100%) 772 (100%)
Table 11.
Diagnosis of soft tissue injuries by age.
Diagnosis 0 to 2 Yr. 3 to 6 Yr. 7 to 10 Yr. 11 to 15 Yr. Total
Extraoral laceration 12 (2.68%) 15 (3.85%) 8 (4.60%) 12 (10.00%) 47 (4.15%)
Intraoral laceration 308 (68.75%) 282 (72.31%) 105 (60.34%) 84 (70.00%) 779 (68.82%)
Contusion 18 (4.02%) 19 (4.87%) 11 (6.32%) 4 (3.33%) 52 (4.59%)
Abrasion 32 (7.14%) 38 (9.74%) 39 (22.41%) 17 (14.17%) 126 (11.13%)
Tongie bite 50 (11.16%) 19 (4.87%) 7 (4.02%) 3 (2.50%) 79 (6.98%)
Palatal perforation 23 (5.13%) 12 (3.08%) 2 (1.15%) 0 (0.00%) 37 (3.27%)
Puncture wounds 5 (1.12%) 5 (1.28%) 2 (1.15%) 0 (0.00%) 12 (1.06%)
Table 12.
Treatment methods in maxillofacial fracture.
Fracture site OR CR OB RE Total
Symphysis 17 6 0 6 29 (34.94%)
Body 1 0 0 0 1 (1.20%)
Angle 12 2 0 0 14 (16.87%)
Subcondyle 2 4 1 1 8 (9.64%)
Condyle 1 4 10 0 15 (18.07%)
Nasal 0 4 3 1 8 (9.64%)
Maxilla 1 0 4 0 5 (6.02%)
Temporal 0 0 1 0 1 (1.20%)
Blow-out 0 0 1 0 1 (1.20%)
Frontal 0 0 0 1 1 (1.20%)
Total 34 20 20 9 83 (100.00%)
Table 13.
Causes of maxillofacial fracture according to sex.
Causes Male Female Total
Fall down 9 (19.57%) 4 (28.57%) 13 (21.67%)
Sports 5 (10.87%) 4 (28.57%) 9 (15.00%)
Drop 8 (17.39%) 1 (7.14%) 9 (15.00%)
Traffic accident 9 (19.57%) 2 (14.29%) 11 (18.33%)
Blow 11 (23.91%) 1 (7.14%) 12 (20.00%)
Other 4 (8.70%) 2 (14.29%) 6 (10.00%)
Total 46 (100.00%) 14 (100.00%) 60 (100.00%)
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