Craneo   ANATOMIA RADIOLOGICA       Dr. Yader Alvarado M.
MAXILAR INFERIOR   (MANDIBULA)Anatomía
• Cuerpo• Bordes• Ramas• Estructura• Osificación
1.- Linea oblicua externa. Continuaciondel margen anterior de la ramaascendenta2.- Cresta temporal con el trigonoretromola...
1.- Linea oblicua externa2.- Cresta temporal con trígonoretro molar.3.- Agujero Mentoneano4.- Canal mandibular5.- Hueso co...
1.- Porción labial del septun interdental2.- Porción lingual del septun interdental3.- Espina mental4.- Canal vascular5.- ...
LEYENDA1. Banda proximal de esmalte en   forma de hoja de cuchillo.2. Muñon de dentina.3. Cámara Pulpar.4. Límite cervical...
1.- septun nasal7.- Seno maxilar8.- Reborde orbitario9.- Borde nasal10.- Espina nasal anterior11.- Borde laterobasal de   ...
1.- Foramen mandibular2.- Proceso corónide3.- Arco cigomático4.- Vertebra cervical5.- Efecto causado por aire    contenido...
1.- Ligamento periodontal2.- Trabeculado oseo3.- Cuerpo de la mandibula4.- Foramen mentalSuperpuestoen el apice del premol...
1.- Espina nasal anterior2.- Reborde de la cavidad nasal3.- Cresta maxilar nasal y septunnasal4.- Concha nasal superpuesta...
1.- Espina nasal anterior2.- Reborde de la cavidad nasal3.- Cresta maxilar nasal y septun nasal4.- Concha nasal superpuest...
Mandibular Incisor                a. lingual foramen                b. genial tubercles                c. mental ridge    ...
lingual view           facial view                       d             c                   a   ba = lingual foramen    c =...
lingual viewLingual foramen. Radiolucent “hole” in center ofgenial tubercles. Lingual nutrient vessels passthrough this fo...
lingual viewGenial tubercles. Radiopaque area in the midline,midway between the inferior border of the mandible andthe api...
facial viewMental ridge. These represent the raised portions of themental protuberance on either side of the midline. More...
facial viewMental fossa. This represents a depression on thelabial aspect of the mandible overlying the roots ofthe inciso...
The radiolucent area above       The orange arrows abovecorresponds to the location      identify nutrient canals.of the m...
Mandibular Canine               a = mental ridgec              b = genial tubercles/                   lingual foramen    ...
facial view       lingual view                                         b2                                         d2      ...
facial viewMental ridge. The raised portions of the mentalprotuberance, sloping downward and backwardfrom the midline.
lingual viewLingual foramen/genial tubercles. (Seedescription under mandibular incisorabove).
facial viewThe red arrows identify the mandibular canaland the blue arrow points to the mentalforamen.
Mandibular Premolar  a = mylohyoid ridge  b = mandibular canal  c = submandibular gland fossa  d = mental foramen
facial view            lingual view                b                   a d                                   cb = mandibul...
lingual viewMylohyoid (internal oblique) ridge. This radiopaqueridge is the attachment for the mylohyoid muscle.The ridge ...
facial viewMandibular canal. (Inferior alveolar canal). Runsdownward from the mandibular foramen to themental foramen, pas...
lingual viewSubmandibular gland fossa. The depression belowthe mylohyoid ridge where the submandibular glandis located. Mo...
facial viewMental foramen. Usually located midway betweenthe upper and lower borders of the body of themandible, in the ar...
Mandibular Molara = external oblique ridgeb = mylohyoid ridgec = mandibular canald = submandibular gland fossa
facial view                 lingual view                     a                                       b           c        ...
b       a    d                      ca = external oblique ridgeb = mylohyoid ridgec = mandibular canald = submandibular gl...
facial viewExternal oblique ridge. A continuation of the anteriorborder of the ramus, passing downward and forwardon the b...
lingual viewMylohyoid ridge (internal oblique). Located on thelingual surface of the mandible, extending from thethird mol...
facial viewMandibular (inferior alveolar) canal. Arises at themandibular foramen on the lingual side of the ramus andpasse...
lingual viewSubmandibular gland fossa. A depression on thelingual side of the mandible below the mylohyoidridge. The subma...
The external oblique ridge (red arrows) and themylohyoid ridge (blue arrows) usually run parallelwith each other, with the...
The mandibular canal (red arrows identify inferior borderof canal) usually runs very close to the roots of themolars, espe...
Slide # 8A. The red arrows identify the ?B. What is the name of the radiolucent   area surrounding the canal?
Anatomía
1.- Septun nasal2.- Cocha nasal inferior3.- Orbita con el canal infraorbitario4.- Borde laterobasal de la cavidad nasal5.-...
1.- Reborde laterobasal de    la cavidad nasal.4.- Borde latero nasal5.- Canal naso palatino6.- Agujero incisivo7.- Efecto...
Maxillary Incisor       a           b    a = nasal septum            c   b = inferior concha                c = nasal foss...
facial view                palatal view                   c        f b a                                         e        ...
facial view         Nasal septum
facial viewa           Inferior concha
facial view              Nasal fossa
facial view    Anterior nasal spine
palatal view       Incisive foramen
palatal view   Median palatal suture
Soft tissue of the nose
The red arrows point to the soft tissue of the nose.The green arrows identify the lip line.
Maxillary Cuspid       a       b   a = floor of nasal fossa           b = maxillary sinus       c           c = lateral fo...
facial view    a                            ac                                c                b                          ...
facial viewFloor of nasal fossa (red arrows) and anteriorborder of maxillary sinus (blue arrows), forming theinverted (ups...
facial viewLateral fossa. The radiolucency results from adepression above and posterior to the lateralincisor. To help rul...
Maxillary Premolara       b   c                a = malar process                b = sinus septum                c = sinus ...
facial view                    b                  b               da c                       a c      d             a = ma...
Anatomia 1
Anatomia 1
Anatomia 1
Anatomia 1
Anatomia 1
Anatomia 1
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Anatomia 1

  1. 1. Craneo ANATOMIA RADIOLOGICA Dr. Yader Alvarado M.
  2. 2. MAXILAR INFERIOR (MANDIBULA)Anatomía
  3. 3. • Cuerpo• Bordes• Ramas• Estructura• Osificación
  4. 4. 1.- Linea oblicua externa. Continuaciondel margen anterior de la ramaascendenta2.- Cresta temporal con el trigonoretromolar3.- Agujero mental4.- Canal mandibular5.- Hueso compacto mandibular.
  5. 5. 1.- Linea oblicua externa2.- Cresta temporal con trígonoretro molar.3.- Agujero Mentoneano4.- Canal mandibular5.- Hueso compacto de lamandibula
  6. 6. 1.- Porción labial del septun interdental2.- Porción lingual del septun interdental3.- Espina mental4.- Canal vascular5.- Canal vascular6.- Fosa Mentoneana7.- Efecto de quemado8.- Sombra causada por la prominencia mentón9.- Hueso compacto de la mandíbula
  7. 7. LEYENDA1. Banda proximal de esmalte en forma de hoja de cuchillo.2. Muñon de dentina.3. Cámara Pulpar.4. Límite cervical o casquete del esmalte.5. Borde del alvéolo.6. Tabique interdentario.7. Conducto.8. Espacio Periodóntico.9. Lámina dura.
  8. 8. 1.- septun nasal7.- Seno maxilar8.- Reborde orbitario9.- Borde nasal10.- Espina nasal anterior11.- Borde laterobasal de la cavidad nasal12.- Porción horizontal del paladar y dorso de la lengua13.- Sombra del hueso Hioides14.- Aire en la epifaringe
  9. 9. 1.- Foramen mandibular2.- Proceso corónide3.- Arco cigomático4.- Vertebra cervical5.- Efecto causado por aire contenido en epifaringe7.- Agujero Mentoneana8.- Canal mandibular
  10. 10. 1.- Ligamento periodontal2.- Trabeculado oseo3.- Cuerpo de la mandibula4.- Foramen mentalSuperpuestoen el apice del premolar5.- Canal mandibular
  11. 11. 1.- Espina nasal anterior2.- Reborde de la cavidad nasal3.- Cresta maxilar nasal y septunnasal4.- Concha nasal superpuesta5.- Hueso nasal6.- Seno maxilar7.- Margen infraorbitario8.- Canal naso lagrimal.9.- Hueso compacto bucal y lingual10.- Espina mental11.- Foramen mental
  12. 12. 1.- Espina nasal anterior2.- Reborde de la cavidad nasal3.- Cresta maxilar nasal y septun nasal4.- Concha nasal superpuesta5.- Hueso nasal6.- Seno maxilar7.- Margen infraorbitario8.- Canal naso lagrimal.
  13. 13. Mandibular Incisor a. lingual foramen b. genial tubercles c. mental ridge d. mental fossa da b c
  14. 14. lingual view facial view d c a ba = lingual foramen c = mental ridgeb = genial tubercles d = mental fossa
  15. 15. lingual viewLingual foramen. Radiolucent “hole” in center ofgenial tubercles. Lingual nutrient vessels passthrough this foramen.
  16. 16. lingual viewGenial tubercles. Radiopaque area in the midline,midway between the inferior border of the mandible andthe apices of the incisors. Serve as attachments for thegenioglossus and geniohyoid muscles. May haveradiolucent hole in center (lingual foramen), but not onthis film. Note double rooted canine (red arrows).
  17. 17. facial viewMental ridge. These represent the raised portions of themental protuberance on either side of the midline. Morecommonly seen when using the bisecting angletechnique, when the x-ray beam is directed at an upwardangle through the ridges.
  18. 18. facial viewMental fossa. This represents a depression on thelabial aspect of the mandible overlying the roots ofthe incisors. The resulting radiolucency may bemistaken for pathology.
  19. 19. The radiolucent area above The orange arrows abovecorresponds to the location identify nutrient canals.of the mental fossa. They are most often seen inHowever, this slide older persons with thinrepresents chronic periapical bone, and in those with highperiodontitis; these teeth are blood pressure or advancednon-vital, due to trauma. periodontitis.
  20. 20. Mandibular Canine a = mental ridgec b = genial tubercles/ lingual foramen c = mental foramen b a
  21. 21. facial view lingual view b2 d2 b d a d c b d1a = mental ridge b1 = genial tuberclesc = mental foramen b2 = lingual foramen
  22. 22. facial viewMental ridge. The raised portions of the mentalprotuberance, sloping downward and backwardfrom the midline.
  23. 23. lingual viewLingual foramen/genial tubercles. (Seedescription under mandibular incisorabove).
  24. 24. facial viewThe red arrows identify the mandibular canaland the blue arrow points to the mentalforamen.
  25. 25. Mandibular Premolar a = mylohyoid ridge b = mandibular canal c = submandibular gland fossa d = mental foramen
  26. 26. facial view lingual view b a d cb = mandibular canal a = mylohyoid ridged = mental foramen (internal oblique) c = submandibular gland fossa
  27. 27. lingual viewMylohyoid (internal oblique) ridge. This radiopaqueridge is the attachment for the mylohyoid muscle.The ridge runs downward and forward from thethird molar region to the area of the premolars.
  28. 28. facial viewMandibular canal. (Inferior alveolar canal). Runsdownward from the mandibular foramen to themental foramen, passing close to the roots of themolars. More easily seen in the molar periapical.
  29. 29. lingual viewSubmandibular gland fossa. The depression belowthe mylohyoid ridge where the submandibular glandis located. More obvious in the molar periapical film.
  30. 30. facial viewMental foramen. Usually located midway betweenthe upper and lower borders of the body of themandible, in the area of the premolars. May mimicpathology if superimposed over the apex of one ofthe premolars.
  31. 31. Mandibular Molara = external oblique ridgeb = mylohyoid ridgec = mandibular canald = submandibular gland fossa
  32. 32. facial view lingual view a b c da = external oblique ridge b = mylohyoid ridgec = mandibular canal d = submandibular gland fossa
  33. 33. b a d ca = external oblique ridgeb = mylohyoid ridgec = mandibular canald = submandibular gland fossa
  34. 34. facial viewExternal oblique ridge. A continuation of the anteriorborder of the ramus, passing downward and forwardon the buccal side of the mandible. It appears as adistinct radiopaque line which usually endsanteriorly in the area of the first molar. Serves as anattachment of the buccinator muscle. (The redarrows point to the mylohyoid ridge).
  35. 35. lingual viewMylohyoid ridge (internal oblique). Located on thelingual surface of the mandible, extending from thethird molar area to the premolar region. Serves asthe attachment of the mylohyoid muscle.
  36. 36. facial viewMandibular (inferior alveolar) canal. Arises at themandibular foramen on the lingual side of the ramus andpasses downward and forward, moving from the lingualside of the mandible in the third molar region to thebuccal side of the mandible in the premolar region.Contains the inferior alveolar nerve and vessels.
  37. 37. lingual viewSubmandibular gland fossa. A depression on thelingual side of the mandible below the mylohyoidridge. The submandibular gland is located in thisregion. Due to the thinness of bone, the trabecularpattern of the bone is very sparse and results in thearea being very radiolucent. The fact that it occursbilaterally helps to differentiate it from pathology.
  38. 38. The external oblique ridge (red arrows) and themylohyoid ridge (blue arrows) usually run parallelwith each other, with the external oblique ridgealways being higher on the film.
  39. 39. The mandibular canal (red arrows identify inferior borderof canal) usually runs very close to the roots of themolars, especially the third molar. This can be a problemwhen extracting these teeth. Note the extreme dilaceration(curving) of the roots of the third molar (green arrow) inthe film at left. The film at right shows “kissing”impactions located at the superior border of the canal.
  40. 40. Slide # 8A. The red arrows identify the ?B. What is the name of the radiolucent area surrounding the canal?
  41. 41. Anatomía
  42. 42. 1.- Septun nasal2.- Cocha nasal inferior3.- Orbita con el canal infraorbitario4.- Borde laterobasal de la cavidad nasal5.- Porcion horizontal del hueso piramidal6.- Seno maxilar7.- Orificio nasal dentro del conducto incisivo8.- Foramen incisivo9.- Espina nasal anterior con la cresta nasal de la maxila10.- Borde de la nariz
  43. 43. 1.- Reborde laterobasal de la cavidad nasal.4.- Borde latero nasal5.- Canal naso palatino6.- Agujero incisivo7.- Efecto de quemado8.- Raiz palatina del # 149.- Cuspide bucal del # 1410.- Cuspide palatina # 1411.- Lobulo anterior del seno maxilar.
  44. 44. Maxillary Incisor a b a = nasal septum c b = inferior concha c = nasal fossa d d = anterior nasal spine e e = incisive foramen f = median palatal suture g = soft tissue of nose fg
  45. 45. facial view palatal view c f b a e da = nasal septum e = incisive foramenb = inferior concha f = median palatalc = nasal fossa sutured = anterior nasal spine
  46. 46. facial view Nasal septum
  47. 47. facial viewa Inferior concha
  48. 48. facial view Nasal fossa
  49. 49. facial view Anterior nasal spine
  50. 50. palatal view Incisive foramen
  51. 51. palatal view Median palatal suture
  52. 52. Soft tissue of the nose
  53. 53. The red arrows point to the soft tissue of the nose.The green arrows identify the lip line.
  54. 54. Maxillary Cuspid a b a = floor of nasal fossa b = maxillary sinus c c = lateral fossa d = nose d
  55. 55. facial view a ac c b b a = floor of nasal fossa b = maxillary sinus c = lateral fossa (a & b form inverted Y)
  56. 56. facial viewFloor of nasal fossa (red arrows) and anteriorborder of maxillary sinus (blue arrows), forming theinverted (upside down) Y.
  57. 57. facial viewLateral fossa. The radiolucency results from adepression above and posterior to the lateralincisor. To help rule out pathology, look for anintact lamina dura surrounding the adjacent teeth.
  58. 58. Maxillary Premolara b c a = malar process b = sinus septum c = sinus recess d = maxillary sinus d
  59. 59. facial view b b da c a c d a = malar process b = sinus recess c = sinus septum d = maxillary sinus

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