# Lower Overdenture Explantation and Implantation: Complete Clinical Case

URL: https://dloralsurgery.com/blog/lower-overdenture-explantation-and-implantation/

January 5, 2014

**2014** year

**17** photographs

In

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![Lower Overdenture Explantation and Implantation: Complete Clinical Case](https://dloralsurgery.com/fotos/2014/01/09.jpg)

We present a case involving **lower overdenture explantation and implantation** in a 68-year-old male patient. He came to our clinic with persistent irritation and pain related to mandibular implants placed four years ago by another provider.

### Diagnosing the Need for Lower Overdenture Explantation and Implantation

A mandibular CT scan showed significant bone loss around the implants. We identified an extremely thin buccal bone plate, likely due to an initial bone deficiency. This, combined with poor soft tissue quality, had accelerated bone resorption and implant instability.

We proposed a two-stage treatment:

1. **Surgical Phase 1:** Explant the failed implants, regularize the bone, and place four new implants with simultaneous autologous bone grafting.
2. **Surgical Phase 2:** Add keratinized tissue using a free epithelial graft and place gingiva formers.

### Implant Removal and Bone Grafting Procedure

On surgery day, the patient reported spontaneous loss of the distal implants three weeks earlier. We performed a crestal incision and cleaned the implant sites. Using trephine burs, we carefully removed the remaining mesial implants.

We inserted four new implants and packed particulate bone collected during the drilling process around each one. This helped enhance bone volume and support osseointegration.

### Results and Follow-Up

At the three-month check-up, all implants showed solid bone integration. One minor complication occurred—slight exposure of implant 34. The second phase of the **lower overdenture explantation and implantation** case will address this with soft tissue grafting.

📎 [View the next phase: soft tissue improvement](https://dlcirugiaoral.com/blog/sobredentadura-inferior-mejorando-tejidos-blandos/)

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/0142.jpg)

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/00.jpg)

Previous situation

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/01.jpg)

CT

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/02.jpg)

Implant 44

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/03.jpg)

Implant 42

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/04.jpg)

Implant 32

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/05.jpg)

Implant 44

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/06.jpg)

Explantation with trephine

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/07.jpg)

Defect

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/08.jpg)

Explanted implant

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/09.jpg)

Vestibular defect

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/010.jpg)

Regularisation

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/011.jpg)

Occlusal view regularisation

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/012.jpg)

Placement of 4 implants

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/013.jpg)

Occlusal view implants

![lower overdenture explantation and implantation](https://dloralsurgery.com/fotos/2014/01/015.jpg)

Implants after 3 months, with bone

[← Previous case **Schneiderian Membrane Perforation During Sinus Lift Surgery**](https://dloralsurgery.com/blog/complications-schneiderian-membrane-perforation-lack-of-buccal-bone-plate/) [Next case →**Collaboration with ICIRO University of La Coruña:…**](https://dloralsurgery.com/blog/collaboration-with-iciro-university-of-la-coruna/)

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