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A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
A VEIW ON TEMPOROMANDIBULAR JOINT
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A VEIW ON TEMPOROMANDIBULAR JOINT

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A VEIW ON TEMPOROMANDIBULAR JOINT,tmj,TEMPOROMANDIBULAR JOINT,anatomy of TEMPOROMANDIBULAR JOINT,pathology of TEMPOROMANDIBULAR JOIN

A VEIW ON TEMPOROMANDIBULAR JOINT,tmj,TEMPOROMANDIBULAR JOINT,anatomy of TEMPOROMANDIBULAR JOINT,pathology of TEMPOROMANDIBULAR JOIN

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  • 1. GOOD AFTERNOON<br />
  • 2. A VEIW ON TEMPOROMANDIBULAR JOINT<br />GUIDED BY:<br />DR. R. N. PODDAR,<br />HOD, <br />ORAL &amp; MAXILLOFACIAL SURGERY,<br />DR. R. AHMED DENTAL COLLEGE &amp; HOSPITAL, KOLKATA<br />DR. MANIMAY BANERJEE,<br />ASSOCIATE PROFESSOR, <br />DEPT. OF ORAL &amp; MAXILLOFACIAL SURGERY,<br />RADCH,KOLKATA<br />
  • 3. WHAT IS TEMPOROMANDIBULAR JOINT ?<br /><ul><li>IT IS THE AREA WHERE THE MANDIBLE ARTICULATES WITH THE CRANIUM.
  • 4. IT IS DESCRIBED AS A COMPLEX, MULTIAXIAL, SYNOVIAL, BICONDYLAR AND GINGLIMOARTHROIDAL JOINT.
  • 5. TMJ IS ALSO KNOWN AS CRANIO MANDIBULAR JOINT/ ARTICULATION. </li></li></ul><li>WHY SHALL WE KNOW TMJ ?<br /><ul><li>PATIENTS FREQUENTLY CONSULT A DENTIST BECAUSE OF PAIN AND DYSFUNCTION IN TEMPORO MANDIBULAR REGION.
  • 6. TMDs(TEMPOROMANDIBULAR DISORDERS) INCLUDE MYOFACIAL PAIN , INTERNAL DEARRANGEMENT, INFLAMMATION, DILOCATION, ANKYLOSIS, NEOPLASIA ETC.
  • 7. NOTHING IS MORE FUNDAMENTAL TO TREATING PATIENTS THAN KNOWING THE ANATOMY.
  • 8. SO TO TREAT THE TMDs WE SHOULD KNOW WELL THE ANATOMY AND PHYSIOLOGY OF THE WHOLE ARTICULATORY SYSTEM OF TEMPOROMANDIBULAR REGION.</li></li></ul><li>
  • 9. TEMPOROMANDIBULAR JOINT<br />
  • 10. CRANIAL COMPONENT<br /><ul><li>IT IS ALSO KNOWN AS MANDIBULAR/GLENOID FOSSA.
  • 11. LIMITS: ANTERIORLY ARTICULAR EMINENCE, POSTERIORLY POST GLENOID TUBERCLE.</li></ul>MANDIBULAR COMPONENT<br /><ul><li>THE ARTICULAR PART OF THE MANDIBLE IS AN OVOID CONDYLAR PROCESS.
  • 12. SHAPE: NORMALLY OVOID. MAY BE FLAT, ROUND AND ANGULAR.
  • 13. POLES: MEDIAL AND LATERAL.
  • 14. MEDIAL IS MORE PROMINENT.
  • 15. DIAMETER: MESIOLATERAL- 13 TO 25 MM</li></ul> ANTERO POSTERIOR- 5.5 TO 16 MM<br />
  • 16. TMJ CAPSULE<br /><ul><li>IT IS A THIN SLEEVE FIBROUS TISSUE INVESTING JOINT COMPLETELY.
  • 17. FUNNEL SHAPED
  • 18. INSIDE FIBROUS TISSUE CAPSULE, A SILKY SYNOVIAL MEMBRANE IS THERE.</li></ul>LIGAMENTS<br />TRUE FALSE<br /><ul><li>COLLATERAL SPHENO MANDIBULAR
  • 19. CAPSULAR STYLOMANDIBULAR
  • 20. TEMPOROMANDIBULAR</li></li></ul><li>ARTICULAR DISC<br />IT IS AN INTERVENING DISC WHICH DIVIDES THE ARTICULAR SPACE INTO TWO COMPARTMENTS.<br />1. INFERIOR/ CONDYLODISCAL COMPARTMENT.<br /> 2. SUPERIOR OR CONDYLODISCAL COMPARTMENT.<br />ANTERIORLY IT IS ATTACHED WITH ARTICULAR EMINENCE.POSTERIORLY IT IS DIVIDED INTO TWO LAMINA.<br />SUPERIOR RETRODISCAL LAMINA<br />INFERIOR RETRODISCAL LAMINA<br />WITHIN THESE LAMINA THERE IS RETRODISCAL TISSUE SPACE.<br />PARTS OF MENISCUS: ANTERIOR , INTERMEDIATE AND POSTERIOR ZONE.<br />
  • 21. LUBRICATION MECHANISM<br />THE LUBRICATION MECHANISM OF TMJ IS CONTROLLED BY THE SYNOVIAL FLUID, PRESENT IN THE JOINT CAVITY.<br />TWO TYPES OF LUBRICATION IS SEEN MAINLY. <br />
  • 22. NEURO VASCULAR SUPPLY<br />BLOOD SUPPLY: <br /><ul><li>SUPERFICIAL TEMPORAL ARTERY FROM POSTERIOR
  • 23. MIDDLE MENINGEAL ARTERY FROM ANTERIOR
  • 24. INTERNAL MAXILLARY ARTERY FROM INFERIOR
  • 25. OTHER IMPORTANT ARTERIES ARE- DEEP AURICULAR, ANTERIOR TYMPANIC AND ASCENDING PHARYNGEAL.
  • 26. CONDYLE GETS A LITTLE BIT FROM INFERIOR ALVEOLAR.</li></ul>NERVE SUPPLY:<br /><ul><li>FOR ANTERIOR ASPECTS. MANDIBULAR NERVE AFTER INNERVATING THE JAW JOINT GIVES 3 BRANCHES-</li></ul>AURICULOTEMPORAL FOR POSTERIOR, MEDIAL AND LATERAL ASPECTS.<br />2. MASSETERIC AND<br />3. A BRANCH FROM POSTERIOR DEEP TEMPORAL NERVE <br />
  • 27. MOVEMENTS<br />MOVEMENTS OF CONDYLE AT THE JOINT SPACE<br /><ul><li>ROTATION
  • 28. TRANSLATION</li></ul>MOVEMENTS OF MANDIBLE PROPER<br /><ul><li>SAGITTAL PLANE BORDER AND FUNCTIONAL
  • 29. HORIZOTAL PLANE BORDER AND FUNCTIONAL
  • 30. VERTICAL PLANE BORDER AND FUNTIONAL</li></li></ul><li>
  • 31. MOVEMENTS<br />
  • 32. SAGITTAL PLANE BORDER AND FUNTIONAL MOVEMENTS<br />FOUR DISTINCT MOVEMENTS COMPNENTS BELONG TO THIS GROUP.<br />POSTERIIOR OPENING BORDER<br />ANTERIOR OPENING BORDER<br />SUPERIOR CONTACT BORDER<br />FUNCTIONAL<br />
  • 33. Horizontal plane border and functional movements<br />IN THE HORIZONTAL PLANE, A RHOMBOID SHAPED PATTERN IS SEEN THAT HAS FOUR DISTINCT MOVEMENT COMPONENTS WITH A FUNCTIONAL COMPONENT.<br />LEFT LATERAL BORDER<br />COTINUED LEFT LATERAL BORDER WITH PROTRUTION.<br />RIGHT LATERAL BORDER<br />CONTINUED RIGHT LATERAL BORDER WITH PROTRUSION.<br />
  • 34. VERTICAL BORDER AND FUNTIONAL MOVEMENTS<br />WHEN MANDIBULAR MOTION IS VIEWED IN THE FRONTAL PLANE, A SHIELD SHAPED PATTERN CAN BE SEEN; THE COMPONENTS OF IT ARE:<br />LEFT LATERAL SUPERIOR BORDER<br />LEFT LATERAL OPENING BORDER<br />RIGHT LATERAL SUPERIOR BORDER<br />RIGHT LATERAL OPENING BORDER<br />
  • 35. EXAMINATION<br /><ul><li>THE EVALUATION OF A PATIENT WITH PROBLEM IN TEMPOROMANDIBULAR REGION INCLUDE THOROUGH HISTORY, PHYSICAL EXAMINATION OF MASTICATORY SYSTEM AND PROBLEM FOCUSSED TMJ RADIOGRAPHY.
  • 36. GENERAL EXAMINATION OF TMJ MAINLY GO THROUGH THE PALPATION AND AUSCULTATION METHOD .</li></ul>PALPATION:<br />AUSCULTATION:<br /><ul><li>SYSTEMIC EVALUATION OF MASTICATORY MUSCLE.
  • 37. EVALUATION OF TMJ FOR TENDERNESS
  • 38. MEASUREMENT OF RANGE OF JAW MOTION.</li></ul>IN SOME TMDs, JOINT NOISE IS HEARD WHICH CAN BE EASILY DETECTED DURING PALPATION OR WITH THE HELP OF STETHOSCOPE.<br />MOST COMMON JOINT SOUNDS ARE:<br />1. CLICKING 2. CREPITUS<br />
  • 39. SYSTEMIC EVALUATION OF MUSCLES OF MASTICATION<br />3. PALPATION OF TEMPORALIS TENDON<br />1. PALPATION OF MASSETER<br />2. PALPATION OF TEMPORALIS<br />
  • 40. EVALUATION OF TMJ<br />A. CLOSED MOUTH POSITION<br />B. OPEN MOUTH POSITION<br />
  • 41. MEASUREMENT OF RANGE OF JAW MOTION<br />MAXIMUM VOLUNTARY VERTICAL OPENING (NORMALLY UP TO 45 MM)<br />EVALUATION OF LATERAL EXTRUSIVE MOVEMENT (10 MM APPROX)<br />
  • 42. DIAGNOSTIC AIDS USED TO EVALUATE TMJ<br />
  • 43. MRI<br />CT<br />PANOROGRAPH<br />TOMOGRAM<br />
  • 44. CONCLUSION<br />Nature has blessed us with a marvelously dynamic masticatory system , allowing us to function and therefore exist.<br />Articulatory system is an important part of the masticatory system of our body.<br />So as a dental care provider to treat the patients of TMDs before knowing the pathology, this is essential to know the normal anatomy and physiology of TMJ.<br />
  • 45. Thank you…<br />
  • 46. SPECIAL THANKS TO:<br />DR. NUPUR BANERJEE, <br />DEPT. OF ORAL &amp;MAXILLOFACIAL SURGERY,<br />R.A.D.C.H.,KOL<br />DR. DEBOBRATA MONDAL,<br />DEPT. OF ORAL &amp;MAXILLOFACIAL SURGERY,<br />R.A.D.C.H., KOL<br />MR. ARINDAM MONDAL<br />ALL OF MY TEACHERS, SENIORS, JUNIORS AND BATCHMATES.<br />

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