하악 제3대구치가 하악 우각부 골절에 미치는 영향 = THE INFLUENCE OF MANDIBULAR THIRD MOLAR ON MANDIBULAR ANGLE FRACTURE

다국어 초록 (Multilingual Abstract)

Mandibular fractures have higher incidence rate compared to facial bone fractures because of relatively prominent form. Specially, mandibular angle fractures were known as common fracture site because of morphological anatomic structure. The mandibular third molar appears to be the most frequent impacted tooth. The mandibular third molar have influence on mandibular angle fractures according to it's eruption state. Also, the mandibular angle fracture including the third molar may influence on post operative infection whether the third molar is in impacted or extracted state when reduction of fracture site is operated. The presence or absence and degree of impaction of the mandibular third molar were assessed for each patient and were related to the occurrence of the mandibular angle fracture. The extraction or non extraction of the mandibular third molar were related to the occurrence of the post operative infection in the reduction of mandibular angle fractures. In the presence of mandibular third molar, the possibility of mandibular angle fractures were relatively common. When viewing the mandibular third molar at occlusal plane, the possibility of mandibular angle fractures were high in the class C group. The possibility of mandibular angle fractures were high in the mesial angulation and partial impaction. There was a statistically significant difference(P<0.05). In complete erupted mandibular third molar, the possibility of post operative infection occurs quite often, but there was no statistical significant difference(P>0.05). In the extracted or non extracted of mandibular third molar, the post operative infection showed no statistical significant difference(P>0.05). With the results mentioned above, mandibular third molar was significantly more susceptible to mandibular angle fracture. In the reduction of mandibular angle fracture, it was recommended that mandibular third molar should be extracted especially in case of pericoronitis, periodontitis and other infections.

참고문헌 (Reference)

1 "Treatment of fractured mandible" 21 : 289-, 1965

2 "The effect of teeth in the line of mandibular fractures on healing" 47 : 1303-, 1989

3 "The effect of mandibular third molar presence and position on the risk of an angle fracture" 58 : 394-, 2000

4 "The complex mandibular" 97 : 283-, 1959

5 "Ten years of mandibular fractures : an analysis of 2137 cases" 59 : 120-, 1985

6 "Teeth in the line of mandibular fractures" 29 : 107-, 1971

7 "Teeth in the line of fracture:A review" 47 : 1303-, 1989

8 "Static loading of the mandible" 19 : 253-, 1965

9 "Relationship between fractures of mandibular angle and the presence and state of eruption of the lower third molar" 79 : 680-, 1995

10 "Prospective study of mandibular fractures" 39 : 275-, 1981

11 "Prognosis of teeth involved in the line of mandibular fractures" 8 : 63-, 1979

12 "Positional changes in mesio-angular inpacted mandibular third molars during a year" 99 : 460-, 1979

13 "Population-based analysis of 10 766 hospitalizations for mandibular fractures in california 1991 to 1993" 45 (45): 1084-, 1998

14 "Pell & Gregory classification" 229-, 1993

15 "Outcomes of patients with teeth in the line of mandibular angle fractures treated with stable internal fixation" 60 : 863-, 2002

16 "Oral Surgery" Mosby CO, St Louis 437-, 1966

17 "Morbidity associated with teeth in the line of mandibular fractures" 36 : 859-, 1978

18 "Morbidity associated with incompletely erupted third molar in the line of mandibular fractures" 48 : 1045-, 1990

19 "Morbidity associated with extraoral open reduction of mandibular fractures" 37 : 97-, 1979

20 "Mandibular third molars and angle fractures" 62 : 1076-, 2004

21 "Is the mandibular thied molar a risk factor for mandibular angle fracture?" 89 : 143-, 2000

22 "Impacted third molars and risk of angle fracture" 31 : 140-, 2002

23 "Fractures of the mandible involving the third molar teeth:An analysis of 47 cases" 18 : 125-, 1980

24 "Experimental fractures of monkey mandibles" 7 : 100-, 1978

25 "Dynamic 3-dimensional finite element analysis of mandibular fracture mechanism" 18 : 470-, 1996

26 "Do mandibular third molars alter the risk of angle fracture?" 60 : 514-, 2002

27 "Clinical and experimental studies on the location and lines of mandibular fractures" 4 : 245-, 1957

28 "Changing trends with mandibular fractures:a review of 67 cases" 50 : 586-, 1992

29 "Behandlung der Zahne im Bruchspalt" 2 : 108-, 1956

30 "Are mandibular third molars a risk factor for angle fractures? A retrospective cohort study" 53 : 646-, 1995.7

31 "Analysis to stress pattern in the human mandible" 54 : 814-, 1977

32 "An epidermiologic survey of facial fractures and concomitant injuries" 48 (48): 926-, 1990

33 "A retrospective analysis of 327 mandibular fracture" 41 : 305-, 1983