Mandibular fractures

fractures of face

1. MANDIBULAR FRACTURES AVA COLLIN JUGGI ROLL NO 18

2. ANATOMY OF MANDIBLE CLASSIFICATION OF FRACTURES ETIOLOGY CLINICAL FEATURES DIAGNOSIS TREATMENT

3. ANATOMY

4. BODY SHAPE : CURVED ( HORSE SHOE) BORDERS: ALVEOLAR BORDER : HOLDS LOWER TEETH BASE : SITE OF ATTACHMENT OF DIGASTRIC LANDMARKS : MANDIBULAR SYMPHYSIS MENTAL PROTUBERANCE MENTAL FORAMEN

5. RAMI PROJECTS FROM THE ANGLE OF MANDIBLE LANDMARKS : HEAD NECK CORONOID PROCESS MANDIBULAR FORAMEN

6. MUSCLES

7. CLASSIFICATION ACCORDING TO THEIR LOCATION C ONDYLAR FRACTURE ( m.c ) C FRACTURE OF A NGLE A FRACTURE OF B ODY B FRACTURE OF S YMPHYSIS S

8. AETIOLOGY MULTIPLE FRACTURES ARE SEEN AS SINGLE ONES EXCEPT , CONDYLAR FRACTURE INDIRECT TRAUMA TO CHIN OR , OPPOSITE SIDE OF BODY OF MANDIBLE

9. DISPLACEMENTS DETERMINED BY : PULL OF MUSCLES ATTACHED TO FRAGMENTS DIRECTION OF FRACTURE LINE BEVEL OF THE FRACTURE

10. Clinical features FRACTURES OF CONDYLE IF FRACTURES ARE NOT DISPLACED PAIN TRISMUS ( inability to open mouth fully) TENDERNESS AT SITE OF FRACTURE

11. IF FRAGMENTS ARE DISPLACED MALOCCLUSION OF TEETH DEVIATION OF JAW TO OPP. SIDE ON OPENING THE MOUTH

12. 2 . FRACTURES OF ANGLE , BODY & SYMPHYSIS DIAGNOSED ON INTRAORAL & EXTRAORAL PALPITATION STEP DEFORMITY MALOCCLUSION OF TEETH ECCHYMOSIS OF ORAL MUCOSA TENDERNESS AT FRACTURE SITE

13. DIAGNOSIS X RAY P A VIEW OF SKULL RT & LT OBLIQUE OF MANDIBLE PANOREX VIEW

14. TREATMENT CLOSED REDUCTION INTER DENTAL WIRING INTER MAXILLARY FIXATION EXTERNAL PIN FIXATION OPEN REDUCTION FRACTURE SITE OPEN FRAGMENTS FIXED BYDIRECT INTERROSEOUS WIRING WIRE TIED IN A FIGURE OF 8 MANNER COMPRESS ION PLATE

15. CONDYLAR FRACTURES INTERMAXILLRY FIXATION WITH ARCH BARS & RUBBER BANDS OPEN REDUCTION & INTERROSEOUS WIRING ( in adult edentulous patients with b/l condylar fracture or in fractures of children) IMMOBILIZATION OF MANDIBLE BEYOND 3 WEEK ANKYLOSIS OF TMJ

16. INTERMAXILLARY WIRES ARE REMOVED & JAW EXERCISES STARTED IF OCCLUSION IS STILL DISTURBED INTERMAXILLARY WIRES ARE REAPPLIED FOR ANOTHER WEEK TILL BITE & JAW MOVEMENTS ARE NORMAL