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KMID : 0362719710090120829
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Journal of the Korean Dental Association
1971 Volume.9 No. 12 p.829 ~ p.835
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MANDIBULAR FRACTURES IN KOREAN
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崔尙烈/Choi, Sang Ryul
李熙哲/Lee, Hee Chul
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Abstract
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Data were obtained by means of a special questionnaire, completed by the attending Dentistr, concerning oral and maxillofacial injuries reported at sellected HOSPITALS. (N.M.C., C.M.C., S.N.U. Dental Dept.)
A total 332 oral and mixillofacial injuries were reported for the 6 years period; 2,32 of this injuries involved mandibular fractures.
The circumstances, types of mandibular fractures and data pertaining to other fractures of facial bone were recorded and collated fir this group. These internal comparisons were carried out by means of data processing equipment.
The following results were obtained :
1 . Personal altercations were responsible for 34.5% of the mandibular fractures and traffic accidents were associated with 28.8%, sports were associated 4. 3%, falls were associated 18. 1%, air craft were 0.9% associated.
2. In 36. 72% of fractured mandibles there was only one fractAre site.
3. Comminuted fractures were reported in 43.97% of the patients.
4. The incisor was the site most commonly fractured, with 43.9 percent of the patients suffering mandibular fractures at this site. Other common mandibular fracture sites were the condyle 12. 1%, the mandibular body 34.5%.
5 Altercations and sports most frequently caused angle fractures, whereas traff pce. ioants and falls most frequently resulted in mandibular body fractures.
6. Other facial bones were fractured in 8.48 percent of the patients, 56.6,Q of theses-were the result of traffic accidents.
7. Markable knowledge.
a. Stainless steels appear to be the made of choices.
b. Plating and wiring of fractures should be done under sterili technique.
c. Implants should be handles with care to avoid surface damage.
8. We encountered great difficulty in making a diagnosis of fractured condy les from routine X-ray examination.
9. Classically, a fracture is immobilized until there is clinical union (about from four to seven weeks, ) It may be somewhat less in younger patients, those bones are more vascular. In older persons, in whom the bone is sclerotic and who has a poor blood supply, more time may be required. In addition, the site of the fracture, the thickness. of the cortex, the type of fracture and its direction, and the resultant muscle pull´ influence the length of the immobizlization period.
10. Fracture fragments helped immobilization of the mandible via intermaxillary fixation soas to avoid, if possible, deviation in mandibular excursions.
11. The causes of mandibular non union. 1) Local factors include infection, inadequate immobilization, imperfect reduction, excessive separation of the bone ends, inter position of tissue or foreign substance between the fragments, pathologic co idition of the bone. 2) General condition include old age and general debility, syphilis, diabetes mellitus, chronic renal disease, tuberculosis. But nonunion of mandibular fracture was corrected by conservative treatment, such as open reduction with bone grafting.
12. Ununited and malunited fractures, when bony union has failed to take place, it may be due to interposed tissue, and if a fracture has been partly united in a result of delayed treatment, this method allows revision of the fracture, freshening of the bone, and accurate reduction with good fixation.
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