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Comparative study of the validity and reproducibility of real-time pH measurements in saliva and oral biofilm.

Comparative study of the validity and reproducibility of real-time pH measurements in saliva and oral biofilm. - Ph comparison in saliva/biofilm

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00030617
Enrollment
10
Registered
2022-11-02
Start date
2022-11-28
Completion date
Unknown
Last updated
2026-06-01

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

Conditions

HEALTHY VOLUNTEERS

Interventions

Group 1: Group 1: Examination of the pH value in saliva during the last four days of the examination period. Group 2: Group 2: Examination of the pH value in the biofilm during the last four days of t

Sponsors

Universitätsklinikum Schleswig-Holstein, Campus KielKlinik für Zahnerhaltungskunde und Parodontologie
Lead Sponsor

Eligibility

Sex/Gender
All
Age
22 Years to 55 Years

Inclusion criteria

Inclusion criteria: Generally healthy persons to whom the exclusion criteria do not apply.

Exclusion criteria

Exclusion criteria: Exclusion criteria for participation in the study are a BMI 29.5 kg/m², metabolic or endocrine diseases, malabsorption syndrome, allergies, smoking, alcohol and drug abuse, medication (such as e.g. antidepressants, antibiotics), presence of a defibrillator or pacemaker, nickel allergy, known allergies to the materials used, MRI examination scheduled during the study period, reflux disease, bulimia, medical conditions (such as HIV, hepatitis, or diabetes), and epilepsy. Further dental exclusion criteria are existing tooth structure defects requiring treatment, a periodontal screening index (PSI) >2, professional dental cleaning less than 4 weeks ago, no stable occlusion, orthodontic treatment performed at the time of the study, wearing of an occlusal splint (''grinding splint''), and no sufficient number of teeth present, i.e., no terminal molar in the fourth or third quadrant and more than 2 missing teeth per quadrant. Also excluded are dental students or employees in a dependent relationship.

Design outcomes

Primary

MeasureTime frame
pH measurement in saliva and biofilm over four days

Secondary

MeasureTime frame
Saliva flow rate, saliva buffer capacity, plaque volume (API), biofilm sample

Countries

Germany

Contacts

Public ContactChristof E. Dörfer

Universitätsklinikum Schleswig-Holstein, Campus KielKlinik für Zahnerhaltungskunde und Parodontologie

doerfer@konspar.uni-kiel.de0431-500 26201

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 11, 2026