Dental Implants
Conditions
Keywords
periimplant soft tissue, gingiva, human, microcirculation
Brief summary
Apply LSCI method for follow-up changes in regional blood flow after compression of the gingiva in order to compare the vascular reactivity of the attached gingiva at implant versus at tooth.
Detailed description
This study will examine the effects of implantation and peri-implant soft tissue shaping on the circulation and the regeneration processes of the human gingiva. The primary aim is to determine the effect of a short term disruption of the blood flow in the gingiva next to an implant and the contralateral tooth, in order to compare the functionally active collateral circulation in the attached gingiva at these respective regions. Using Laser Speckle Contrast Imaging technique (LSCI), which provides blood perfusion data, the investigators will have the possibility to detect functional alterations in gingival microcirculation during and after a short term compression of the gingiva. The secondary aim is to assess and compare the time course of the restoration of the circulation on the affected areas. Further aims are to observe if the compensation capability of the circulation is influenced by gingival thickness (biotype) and patient's gender.
Interventions
PROCEDUREPost-occlusive reactive hyperemia test (PORH test)
Compression is applied on the buccal side of the attached gingiva, perpendicular to the long axis of the natural or implant born crown 2 mm far from the gingival margin.
Sponsors
Semmelweis University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
Yes
Inclusion criteria
Patient with single dental implant installed in the front region of the jaw at least 6 months ago. On the contralateral side a natural tooth is located.
Exclusion criteria
* systemic disease * smoking * alcohol abuse * pregnancy * gingivitis * periodontitis
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Magnitude of the hyperemia after PORH test | 5min | Blood flow changes are measured by LSCI before (baseline), during and after gingiva compression. The scale is an arbitrary unit (0-3000 LSPU); relative changes to the baseline measurement will be calculate. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Longevity of the hyperemia after PORH test | 20min | Blood flow changes are measured by LSCI before (baseline), during and after gingiva compression. The scale is an arbitrary unit (0-3000 LSPU); relative changes to the baseline measurement will be calculate. |
| Size of the hyperemia after PORH test | 20 min | Blood flow changes are measured by LSCI before (baseline), during and after gingiva compression. LSCI can measure in several cm2 areas and display blood perfusion as color-coded images. |
| Difference in the magnitude and longevity of hyperemia induced by PORH test next to an implant born crown between women and men. | 20 min | Blood flow changes are measured by LSCI before (baseline), during and after gingiva compression. The scale is an arbitrary unit (0-3000 LSPU); relative changes to the baseline measurement will be calculate. |
Countries
Hungary
Contacts
Primary ContactRéka Fazekas
Outcome results
None listed