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Ceph /certified fixed orthodontic courses by Indian dental academy

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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078

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  • 1. Basic Cephalometrics INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  • 2. Purpose of Cephalometrics • • • • Study craniofacial growth Diagnosis Planning orthodontic treatment Evaluation of treated cases Cephalometrics is a technique employing oriented radiographs for the purpose of making head measurements. www.indiandentalacademy.com
  • 3. Cephalostat 15" 15" 60" 60" Source Plane Source Plane X-ray Source X-ray Source Mid-saggital Plane Mid-saggital Plane Patient in Head Patient in Head Positioning Device Positioning Device www.indiandentalacademy.com Film Plane Film Plane X-ray Film in X-ray Film in Cassette Cassette
  • 4. Cephalostat www.indiandentalacademy.com
  • 5. Cephalostat www.indiandentalacademy.com
  • 6. Cephalometric Values for Selected Groups White Black Israeli Chinese Japanese SNA 82 85 82 82 81 SNB 80 81 78 79 77 ANB 2 4 4 3 4 U1-NA 4 mm, 22 7 mm, 23 5 mm, 24 5 mm, 24 6 mm, 24 L1-NB 4 mm, 25 10 mm, 34 6 mm, 29 6 mm, 27 8 mm, 31 U1-L1 131 119 124 126 120 GoGn-SN 32 32 35 32 34 L1-MnPl 93 100 93 93 96 L1-FH 62 51 57 57 57 Y axis 61 63 61 61 62 from Proffit,Contemporary Orthodontics, 1992 www.indiandentalacademy.com
  • 7. What Are We Trying to Accomplish? • Find out skeletal classification – anteroposterior – vertical • Find out angulation of incisors • Consider soft tissue – facial profile – airway considerations www.indiandentalacademy.com
  • 8. What Are We Trying to Accomplish? (In other words) • Is the patient Class I, II, III skeletal? • Does the patient have a skeletal open bite growth pattern, or a deep bite growth pattern, or a normal growth pattern? • Are the maxillary/mandibular incisors proclined, retroclined or normal? • Is the facial profile protrusive, retrusive, or straight; can the patient breathe normally? www.indiandentalacademy.com
  • 9. Structures to be Traced www.indiandentalacademy.com
  • 10. Standard Cephalometric Landmarks Sella Nasion Orbitale Porion ANS Articulare A Point B Point Gonion Pogonion PNS Menton Gnathion www.indiandentalacademy.com
  • 11. Radiographic Landmarks www.indiandentalacademy.com
  • 12. Frequently Used Planes SN Plane Frankfort Plane Palatal Plane Occlusal Plane Mandibular Plane www.indiandentalacademy.com
  • 13. Skeletal Assessment SNA Antero-posterior maxillary assessment 82 www.indiandentalacademy.com
  • 14. Skeletal Assessment SNB Antero-posterior mandibular assessment 80 www.indiandentalacademy.com
  • 15. Skeletal Assessment ANB Antero-posterior bimaxillary assessment 2 www.indiandentalacademy.com
  • 16. Skeletal Assessment Wits (AO-BO) -1 mm BO anterior to www.indiandentalacademy.com AO
  • 17. Skeletal Assessment Y Axis 66 www.indiandentalacademy.com
  • 18. Skeletal Assessment Y Axis (to Frankfort Horizontal) Vertical Skeletal Assessment 59 www.indiandentalacademy.com
  • 19. Skeletal Assessment NS(SN plane)-GoGn Vertical Skeletal Assessment 32 www.indiandentalacademy.com
  • 20. Dental Assessment U1-NS (Max 1 - SN) Incisor Angulation Assessment 104 www.indiandentalacademy.com
  • 21. Dental Assessment Max 1 - NA (degrees) 22 www.indiandentalacademy.com
  • 22. Dental Assessment Max 1 - NA (mm) 4 mm www.indiandentalacademy.com
  • 23. Dental Assessment L1-GoGn (Man 1 - GoGn) Incisor Angulation Assessment 95 www.indiandentalacademy.com
  • 24. Dental Assessment Man 1 - NB (degrees) 25 www.indiandentalacademy.com
  • 25. Dental Assessment Man 1 - NB (mm) 4 mm www.indiandentalacademy.com
  • 26. Dental Assessment APog - Man 1 2 mm +/- 2 www.indiandentalacademy.com
  • 27. Dental Assessment U1-L1 (Max 1 - Man 1) Inter-Incisor Angulation Assessment 130 www.indiandentalacademy.com
  • 28. Soft Tissue Assessment E Plane -2 mm CHANGES WITH AGE! www.indiandentalacademy.com
  • 29. Soft Tissue Assessment >4 mm. www.indiandentalacademy.com
  • 30. Composite Cephalometric Tracing www.indiandentalacademy.com
  • 31. Nasorespiratory Considerations Children with airway obstruction, when compared to normal controls, show: • Increased total and lower face heights • More retrognathic mandibles • Steeper (increased) mandibular plane angles • Spontaneous improvement after reestablishment of normal respiration www.indiandentalacademy.com
  • 32. Cases www.indiandentalacademy.com
  • 33. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com

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