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Endothelium Dependent and Non-dependent Vasodilatation in Human Gingiva

Investigation of the Endothel Dependent and Independent Vasodilatation in Human Gingiva: Comparison of the Effect of NO and ACH

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04918563
Enrollment
24
Registered
2021-06-09
Start date
2020-09-15
Completion date
2021-05-15
Last updated
2021-06-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Oral Soft Tissue Conditions, Vasodilatation

Keywords

spreading vasodilatation, gingial microcirculation, LSCI

Brief summary

The aim of this study is to compare the endothelim-dependent and non-dependent vasodilatation between genders in the human gingiva.

Detailed description

Gender differences were observed in studies according to gingival microcirculation between physiological circumstances and during wound healing as well. For blood flow measurement Laser Spackle Contrast Imaging is a reliable tool. It has good reproducibility, it doesn't get in touch with the measured surface, it's easy to use and it can measure on a bigger surface in same time. Two wells were fabricated on the labial surface of the right lateral incisor (test tooth) and on the labial surface of the left central incisor (control tooth). These wells are opened towards the high-prermeability gingival sulcus, so the dropped solutions nitroglycerine vs physiological saline or nitroglycerine vs physiological saline can esasily penetrate to the gingival tissues. After applying the solutions, the blood flow was monitored fot 15 minutes.

Interventions

DRUGNitroglycerin

Vasodilatator solution is dropped on the labial surface on the lateral incisor, so it can penetrate through the sulcus.

DRUGAcetylcholine

Vasodilatator solution is dropped on the labial surface on the lateral incisor, so it can penetrate through the sulcus.

Sponsors

Semmelweis University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
20 Years to 30 Years
Healthy volunteers
Yes

Inclusion criteria

* general health * minimum 5 mm keratinized gingiva at the upper front teeth * good oral hygiene

Exclusion criteria

* pregnancy and breast-feeding * smoking * medication * insufficient marginal integrity * periodontitis * caries

Design outcomes

Primary

MeasureTime frameDescription
Blood flow change after applying the test solutions20 minutesThe change in blood flow will be measeured after applying the test solutions.

Secondary

MeasureTime frameDescription
Comparison the change in blood flow between the two solutions30 minutesThe blood flow values will be evaluated after each applied solutions.
Comparison the change in blood flow in genders20 minutesThe maximal blood flow changes assessed in primary outcome will be split into two groups based on gender. The change will be compared between males and females.

Countries

Hungary

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026