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Overdentures

Overdentures. Dr DV Malefane Lecturer/consultant Wits School of Oral Health Department of Prosthodontics. Lecture outline. Definition Indications Clinical process incl materials Adv & disadv Maintenance. Definition.

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Overdentures

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  1. Overdentures Dr DV Malefane Lecturer/consultant Wits School of Oral Health Department of Prosthodontics

  2. Lecture outline • Definition • Indications • Clinical process incl materials • Adv & disadv • Maintenance

  3. Definition • Complete or partial removable denture supported by retained roots to improve support, stability, sensation (tactile & proprioceptive) to reduce alveolar bone resorption • Tooth supported (TSO) • & Implant supported (ISO)*removable & fixed

  4. Indications • Excellent OH • Supporting alveolar architecture - roots with healthy alveolar bone • Location of teeth in the arch - canines & laterals (md) - canines & 1st premolars (mx) • Root structure - RCT feasable

  5. Clinical process • Remove coronal portion to gingival margin • RCT of remaining roots • Impressions – alginate & PVS

  6. Clinical process

  7. Clinical process • Retentive elements e.g metal copings,

  8. Clinical process cont.

  9. Clinical process cont.

  10. Implant supported

  11. Implant supported

  12. Advantages • Helps reduce alveolar bone resorption • Better retention, support & stability • Sensory input • Positive psychological advantage of still having teeth. • Prevents combination syndrome (Mx)

  13. Disadvantages • Secondary caries & periodontal disease/ periimplantitis • Bulkier vs conventional denture • Frequent maintenance exams • More expensive • Failure (RCT/implant) • Time

  14. Maintenance • OH(NB!!!!!!) • OH • OH • Retentive elements maintained/replaced

  15. Clinical e.g

  16. Clinical e.g

  17. Clinical e.g

  18. Clinical e.g

  19. End Thank you!!!

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