Staged approach utilizing CTi membrane to regenerate moderate ridge defect on #23

김용수원장님

Author
Yong Soo Kim, DDS, MSD, CAGS

Private Practice
Yeosu, Korea



1. Moderate alveolar ridge defect in anterior area is a challenge to restore esthetically with dental implants due to it’s lower bone regenerative potential.
2. CTi membrane is a useful material when the defect morphology is not favorable.
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Panoramic X-ray show significant amount of alveolar bone resorption around #23

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CT scan shows both vertical and horizontal defect around #23

1. Scaling and root planing
2. #23 extraction
3. #23 GBR with CTi membrane
4. #23 Implant placement and restoration
5. Maintenance
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Due to severe periodontitis, #23 is already extruded and mobile. Since moderate to severe bony defect was predicted, staged approach to regenerate bony defect planed.

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5 weeks after extraction, soft tissue around extraction socket was closed up

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Full thickness flap was raised and vertical bony defect was noted.
The defect was grafted with FDBA (ICB cortical)


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Defect was proteced by CTI membrane (E-type) and covered by resorbable collagen membrane.

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Flaps were closed and sutured by 5-0 Dafilon

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7 month after GBR. No exposure of CTi membrane was observed. Good soft tissue healing.

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CT scan after GBR shows significant amount of alveolar bone regeneration.

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Both horizontal and vertical bone regeneration was noticed clinically.

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Neobiotech IS II active implant (size of 4.0x10) was placed and primary stability was achieved (30N/cm)

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Good healing after implant placement was noticed.

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After 3months of healing, uncovering was performed.

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Final restoration was fabricated and cemented. Good pink and white esthetics.

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Pre operative and post operative pictures. Reasonable esthetics was achieved.

This case done by Dr. Yong Soo Kim shows successfully placed Neobiotech IS II implant on the site 23 with a CTi-membrane.

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2 Comments
  1. Profile photo of Kameel Michael Atallah

    Thank You for such great work.

    I hope one day we dentists can serve better for a missing tooth less than a year ( that is 5 weeks+7months+3months)!!!

    • Profile photo of Yong Soo Author
      Yong Soo 1 month ago

      Thank you for the comment. It is always challenging to shorten the treatment time when we are dealing with moderate to severe alveolar bone resoprtion considering underlying biology. I hope we can have better option in the future with growing understang of the tissue engineering technique.

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