NCT02775149

Brief 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. 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.

Trial Health

20
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Trial recruitment is currently suspended
Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Nov 2016

Longer than P75 for all trials

Status
suspended

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 9, 2016

Completed
8 days until next milestone

First Posted

Study publicly available on registry

May 17, 2016

Completed
6 months until next milestone

Study Start

First participant enrolled

November 1, 2016

Completed
5.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2021

Completed
Last Updated

November 6, 2020

Status Verified

November 1, 2020

Enrollment Period

5.1 years

First QC Date

May 9, 2016

Last Update Submit

November 4, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

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

    After removal of the probe (on second day)

Secondary Outcomes (5)

  • Determination of unstimulated and stimulated saliva flow rate (ml/min).

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

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

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

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

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

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

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

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

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

Study Arms (1)

Reflux patients

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

Other: Collection of saliva samplesOther: Visual detection of BEWE-index

Interventions

Collection of saliva samples

Reflux patients

Visual detection of BEWE-index

Reflux patients

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Exploratory study

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (8)

  • 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.

    PMID: 18228057BACKGROUND
  • 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.

    PMID: 24993267BACKGROUND
  • 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.

    PMID: 15240067BACKGROUND
  • 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.

    PMID: 22004279BACKGROUND
  • 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.

    PMID: 22472533BACKGROUND
  • 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.

    PMID: 20696201BACKGROUND
  • 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.

    PMID: 25922678BACKGROUND
  • 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.

    PMID: 27022647BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

Saliva samples are obtained and retained for 10 years.

MeSH Terms

Conditions

Tooth Erosion

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic DiseasesTooth Wear

Study Officials

  • Annette Wiegand, Prof. Dr. med. dent.

    Dept. of Prev. Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Dr. med. dent.

Study Record Dates

First Submitted

May 9, 2016

First Posted

May 17, 2016

Study Start

November 1, 2016

Primary Completion

December 1, 2021

Study Completion

December 1, 2021

Last Updated

November 6, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will not share