NCT04140929

Brief Summary

Based on the poor situation of residents in German nursing homes with regard to oral health, a cluster-randomized Trial will be carried out in Rhineland-Palatindate, Germany. Dentists investigated residents to identify dental or oral hygiene problems. In the invention group, dentists' recommendations will be reinstructed to the nursing staff by dental assistance.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
358

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

October 24, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 28, 2019

Completed
3 days until next milestone

Study Start

First participant enrolled

October 31, 2019

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2023

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2024

Completed
Last Updated

April 1, 2025

Status Verified

December 1, 2023

Enrollment Period

3.8 years

First QC Date

October 24, 2019

Last Update Submit

March 26, 2025

Conditions

Keywords

nursing homesoral hygienequality of lifehealth services research

Outcome Measures

Primary Outcomes (1)

  • General Oral Health Assessment Index (GOHAI)

    The GOHAI is an established instrument for measuring oral health-related quality of life (OHRQoL) in older people. It comprises twelve items in four domains (functional limitations, pain/discomfort, psychological aspects, behavioral aspects), which are recorded ordinally scaled from 0 (never true) to 5 (always true).

    12 months

Secondary Outcomes (7)

  • Pain scale

    12 months

  • European Group Quality of life-5 Dimenions-5 Levels (EQ-5D-5L)

    12 months

  • Decayed-Missing-Filled-Teeth (DMFT)

    12 months

  • Geriatric Debris Index (GDI-S)

    12 months

  • Periodonal Sulcus Index (PSI)

    12 months

  • +2 more secondary outcomes

Study Arms (2)

Intervention group

EXPERIMENTAL

In the intervention group, a range of clinical parameters are recorded and the dentists prepares an individual oral hygiene and care recommendation, based on the Oral Health Tool Box. The Box is also used for instructing the dental assistants and the nursing staff for each patient individually. It is then determined when and how the dental assistants re-evaluates the oral hygiene and care process and reinstructs and remotivates the nursing staff. If the examination reveals a need for dental treatment (possibly requiring referral and transport), this will be communicated to the nursing staff. The dental assistant will further receive a training in communication, enabling them in reinstruction and remotivation. Dentists and dental assistants will further receive a training in geriatric dentistry by the State Commissioner of the German Society for Geriatric Dentistry.

Other: Oral Health Tool Box

Control group

NO INTERVENTION

In the control group, the residents receive care as usual. This includes the recording of the same parameters are recorded as in intervention group, a standardized form is filled out and handed over to the nursing staff. As in the case of Intervention group, the nursing staff is informed in the event of a need for treatment. No further measures are applied.

Interventions

Please see, description of the intervention group

Intervention group

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Nursing homes without an existing dental cooperation agreement. Eligible are residents with a degree of care dependency of 3 to 5 (moderate to severe) as rated by an expert rater of the German statutory health insurance.

You may not qualify if:

  • lack of consent (of the home management and/or the residents or their proxies or legal guardians) and residents in respite carer

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Schleswig-Holstein

Kiel, Germany

Location

Related Publications (2)

  • Nordblom NF, Hertrampf K, Habig S, Gabelmann S, Schlattmann P, Orawa H, Meyer G, Gassmann G, Abraham J, Wobst LM, Schwendicke F. Cost-effectiveness-analysis of oral health remotivation and reinstruction in nursing homes in a cluster-randomized controlled trial. J Dent. 2025 Feb;153:105520. doi: 10.1016/j.jdent.2024.105520. Epub 2024 Dec 13.

  • Hertrampf K, Schlattmann P, Meyer G, Gassmann G, Abraham J, Hammen V, Schwendicke F. Oral health improvement for nursing home residents through delegated remotivation and reinstruction (MundZaRR Study): study protocol of a cluster-randomised controlled trial. BMJ Open. 2020 Sep 25;10(9):e035999. doi: 10.1136/bmjopen-2019-035999.

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Cluster-randomized controlled trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle Investigator

Study Record Dates

First Submitted

October 24, 2019

First Posted

October 28, 2019

Study Start

October 31, 2019

Primary Completion

July 31, 2023

Study Completion

April 30, 2024

Last Updated

April 1, 2025

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

After completion of the whole study, the results will be published

Locations