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The presence of non-functional white blood cells in the mouth of edentulous subjects wearing full dentures

Impaired polymorphonuclear neutrophils in the oral cavity of edentulous subjects

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN13234871
Enrollment
20
Registered
2016-09-14
Start date
2014-09-01
Completion date
Unknown
Last updated
2016-10-24

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

Conditions

Edentulous subjects wearing full dentures for a minimum period of 1 year. Oral Health

Interventions

Volunteers were recruited at the Academic Centre for Dentistry Amsterdam (ACTA) in the Netherlands. Subjects were either patients at the dental clinics or non-professional personnel. All subjects were

Sponsors

Academic Centre for Dentistry Amsterdam (ACTA)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: edentulous for a minimum period of 1 year wearing a full denture OR dentate subjects with a minimum of 20 teeth.

Exclusion criteria

Exclusion criteria: conditions that are known to systemically affect the neutrophil functionality (such as Diabetes, hematological disorders, recent illness, allergies). Furthermore, antbiotics use, pregnancy, removal partial dentures, night guards, orthodontic banding, oral piercings, oral lesions were excluded.

Design outcomes

Primary

MeasureTime frame
The presence of functionally impaired neutrophils in the oral cavity of edentulous subjects, measured using flow cytometry directly after sampling. All samples were analyzed using flow cytometry on the same day.

Secondary

MeasureTime frame
1. Cell number count, using a Muse cell counting device. 2. Cell membrane integrity, analysed using propidium iodide staining. 3. Neutrophil expression of cell activation markers CD11b, CD63 and CD66b and corrected for non-specific binding of isotype control antibodies. 4. Presence of constitutive reactive oxygen species (ROS) production, detected using dihydrorhodamine 123. 5. Presence of ROS production in response to stimulation, determined in samples incubated with forbid myristate acetate (PMA) or Fusobacterium nucleatum

Countries

Netherlands

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026