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Dental ErosionNCT02775149

Dental Erosion in Patients With Gastro-oesophageal Reflux

An observational study of Dental Erosion, run by University of Göttingen.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

Not only caries but also exposure to acids can lead to loss of tooth structure. This acid-related tooth structure loss is defined as dental erosion. A relationship between dental erosion and occurence of reflux disease was shown in numerous studies. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Dental Erosion
What is being tested?
Collection of saliva samples and Visual detection of BEWE-index
How many people
30 participants
Where
No sites listed yet
Study dates
1 Nov 2016to Dec 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Exploratory study

Who may be able to join

  • Patients who are treated at the Clinic for Gastroenterology and Gastrointestinal Oncology and have a 24-hours pH monitoring or impedance measurement performed for medical reasons

Who cannot join

  • Inability to give written consent
  • Age <18 years
  • Intake of proton pump inhibitors (PPIs) if they are not discontinued at least one week before study participation

About this study

Not only caries but also exposure to acids can lead to loss of tooth structure. This acid-related tooth structure loss is defined as dental erosion.

A relationship between dental erosion and occurence of reflux disease was shown in numerous studies. On the one hand, patients with dental erosions frequently show reflux disease. On the other hand, many - but not all - reflux patients show dental erosions. It is believed that certain salivary parameters might explain, why not all reflux patients alike are affected of dental erosions.

The aim of this study is to analyze the relationship and the extent of occurrence of dental erosions and reflux symptoms, including investigation of certain salivary parameters.

Conditions
Dental Erosion
Being tested
Collection of saliva samples, Visual detection of BEWE-index
Medical subject headings
Tooth Erosion

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Collection of saliva samplesOther

    Collection of saliva samples

  • Visual detection of BEWE-indexOther

    Visual detection of BEWE-index

Study groups in NCT02775149
Study groupRoleWhat they receive
Reflux patientsPatients who are treated at the Clinic for Gastroenterology and Gastrointestinal Oncology and have a 24-hours pH monitoring or impedance measurement performed for medical reasons
Receives: Other: Collection of saliva samples; Other: Visual detection of BEWE-index

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Visual assessment of the BEWE-(basic erosive wear examination)-index

    Measured: After removal of the probe (on second day)

Secondary outcomes (5)
  1. Determination of unstimulated and stimulated saliva flow rate (ml/min).

    Measured: While wearing the probe at three time points over 24h: morning, noon, evening

  2. Determination of saliva pH and buffer capacity (mol/L).

    Measured: While wearing the probe at three time points over 24h: morning, noon, evening

  3. Determination of total protein content in saliva (g/L).

    Measured: While wearing the probe at three time points over 24h: morning, noon, evening

  4. Determination inorganic calcium and phosphate in saliva (mmol/L).

    Measured: While wearing the probe at three time points over 24h: morning, noon, evening

  5. Measurement of salivary enzyme activity: Protease, Kollagenase/Gelatinase, Pepsin, Trypsin, and Amylase (U/mL).

    Measured: While wearing the probe at three time points over 24h: morning, noon, evening

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 May 2016 (estimated)
  2. Study start1 Nov 2016
  3. Primary completionDec 2021 (estimated)
  4. Study completionDec 2021 (estimated)

Why it stopped: No participants

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02775149
Sponsor's protocol ID
Erosion-Reflux
Other IDs
2/11/15
Status last verified
Nov 2020
First submitted
9 May 2016
Last updated
6 Nov 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Bartlett D, Ganss C, Lussi A. Basic Erosive Wear Examination (BEWE): a new scoring system for scientific and clinical needs. Clin Oral Investig. 2008 Mar;12 Suppl 1(Suppl 1):S65-8. doi: 10.1007/s00784-007-0181-5. Epub 2008 Jan 29.

    PubMed 18228057
  • Hara AT, Zero DT. The potential of saliva in protecting against dental erosion. Monogr Oral Sci. 2014;25:197-205. doi: 10.1159/000360372. Epub 2014 Jun 26.

    PubMed 24993267
  • Moazzez R, Bartlett D, Anggiansah A. Dental erosion, gastro-oesophageal reflux disease and saliva: how are they related? J Dent. 2004 Aug;32(6):489-94. doi: 10.1016/j.jdent.2004.03.004.

    PubMed 15240067
  • Ranjitkar S, Smales RJ, Kaidonis JA. Oral manifestations of gastroesophageal reflux disease. J Gastroenterol Hepatol. 2012 Jan;27(1):21-7. doi: 10.1111/j.1440-1746.2011.06945.x.

    PubMed 22004279
  • Schlueter N, Ganss C, Potschke S, Klimek J, Hannig C. Enzyme activities in the oral fluids of patients suffering from bulimia: a controlled clinical trial. Caries Res. 2012;46(2):130-9. doi: 10.1159/000337105. Epub 2012 Apr 3.

    PubMed 22472533
  • Wang GR, Zhang H, Wang ZG, Jiang GS, Guo CH. Relationship between dental erosion and respiratory symptoms in patients with gastro-oesophageal reflux disease. J Dent. 2010 Nov;38(11):892-8. doi: 10.1016/j.jdent.2010.08.001. Epub 2010 Aug 7.

    PubMed 20696201
  • Wilder-Smith CH, Materna A, Martig L, Lussi A. Gastro-oesophageal reflux is common in oligosymptomatic patients with dental erosion: A pH-impedance and endoscopic study. United European Gastroenterol J. 2015 Apr;3(2):174-81. doi: 10.1177/2050640614550852.

    PubMed 25922678
  • Kanzow P, Wegehaupt FJ, Attin T, Wiegand A. Etiology and pathogenesis of dental erosion. Quintessence Int. 2016 Apr;47(4):275-8. doi: 10.3290/j.qi.a35625.

    PubMed 27022647

Questions about this trial

What is this clinical trial studying?

An observational study of Dental Erosion, run by University of Göttingen.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: paused, as of the sponsor's last update on 6 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Visual assessment of the BEWE-(basic erosive wear examination)-index (time frame: After removal of the probe (on second day)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02775149, which also lists 8 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Nov 2020.

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