Editorial Type:
Article Category: Other
 | 
Online Publication Date: 01 Feb 2014

Nanocrystalline Hydroxyapatite-Based Material Already Contributes to Implant Stability After 3 Months: A Clinical and Radiologic 3-Year Follow-up Investigation

MD, DDS,
,
,
MD,
MD, DDS, PhD, and
MD, DDS, PhD
Page Range: 103 – 110
DOI: 10.1563/AAID-JOI-D-13-00232
Save
Download PDF

The present study reports on a 3-year clinical and radiologic follow-up investigation of dental implants placed 3 and 6 months after sinus augmentation in 14 patients. Augmentation was performed with a synthetic bone substitute material composed of nanocrystalline hydroxyapatite. The aim of the study was to determine how the integration period of the bone substitute material, that is, 3 months or 6 months, influences implant integration within the patient's upper jaw. Therefore, the following clinical and radiologic parameters were investigated: implant being in situ; Periotest value; and presence of peri-implant osteolysis, bleeding on probing, plaque, and soft tissue recession around the implants. At the follow-up investigation 3 years after placement, 23 of 24 implants were in situ and suitable for prosthetic rehabilitation. No implants in either study group were mobile or showed peri-implant osteolysis. Only a few implants showed plaque or soft tissue variations. Within its limits, the present study showed comparable clinical performance of dental implants placed 3 months after sinus floor augmentation to implants placed 6 months after augmentation. The results of all investigated parameters were in accordance with results found in the literature. It can be concluded that augmentation with the applied synthetic bone substitute material already forms a sufficient implantation bed 3 months after augmentation, which enables long-term, stable, implant-retained restoration. These findings might contribute to a reduced healing time after augmentation, which would be favorable for patients and clinicians.

<bold>
  <sc>Figures 1–4</sc>
</bold>
.
Figures 1–4 .

Figures 1 and 2. Radiographic images of patient 11 with 2 implants inserted in regions 14 and 15 immediately after implant placement and at the 3-year clinical follow-up. The peri-implant bone level is stable and no peri-implant osteolysis can be detected. Figure 3. Clinical front image of patient 9 at the 3-year follow-up. Dental implants were inserted in regions 2, 4, 5, 7, 9, 12, 13, and 15 and restored with removable prosthetics. Figure 4. Close-up image of patient 9 with implants inserted in regions 2, 4, and 5 and conical abutments for restoration with removable prosthetics. The peri-implant soft tissue appears to be free of signs of inflammation or recessions.


Contributor Notes

Corresponding author, e-mail: shahram.ghanaati@kgu.de
  • Download PDF