NCT05965076

Brief Summary

This study aims at comparing different procedures of Professional Oral Hygiene (POH) and Domiciliary Oral Hygiene (DOH) in Columbus Bridge ProtocolTM full-arch reinstated patients by dividing a sample of at least 74 patients into 4 groups with a 1:1:1:1 ratio. The patients will randomly be assigned to a "Standard" or "Glycine Perio Flow" Professional treatment, and to a "Standard" or "Angled" Toothbrush for their Domiciliary oral hygiene. Data about bacterial plaque presence is collected both before and after unscrewing the denture, when it comes to implant abutments. Instead, Denture Plaque Index will be collected after unscrewing the denture, by means of erythrosine and analyzed using a specific software that allows to compute the percentage of plaque on the denture. Patients will be seen after 3 months in order to figure out differences between DOH groups, by measuring plaque on abutments and on the denture after unscrewing it. At the moment there are no scientific studies trying to determine which professional and domiciliary procedures might be more efficient to control bacterial plaque in Columbus Bridge ProtocolTM reinstated patients. Statistically significant lower Plaque Index (PI) and Denture Plaque Index (DPI) scores are expected in patients treated with glycine perio flow, compared to standard treated patients. However, when it comes to angled toothbrush, lower PI and DPI are expected not to be statistically significant. Expectation from this study is to get information on how to improve full-arch patients' therapy in order to reduce peri-implant diseases which are related to bacterial plaque.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
74

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Start

First participant enrolled

February 6, 2023

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

July 6, 2023

Completed
22 days until next milestone

First Posted

Study publicly available on registry

July 28, 2023

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 15, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2024

Completed
Last Updated

July 23, 2024

Status Verified

July 1, 2024

Enrollment Period

1.7 years

First QC Date

July 6, 2023

Last Update Submit

July 20, 2024

Conditions

Keywords

glycineairflowfull-archangled toothbrush

Outcome Measures

Primary Outcomes (2)

  • Denture Plaque Index (DPI)

    This study's primary outcome is the plaque index on the denture (DPI). Plaque indexes will be determined by means of erythrosine (GC Tri Plaque ID GelTM, Tokyo, Japan). Pictures in jpg format will be taken with a digital Nikon D80 camera with 105mm macro lens and processed with ImageJ 1.45s software (National Institutes of Health, Bethesda, MD, USA). Pictures will be converted into binary monochrome images. Specific standard thresholds will be determined to differentiate the plaque pixels (blue) from the plaque free ones (pink). This procedure is already proven by literature.

    T0: first session (for professional oral hygiene).

  • Denture Plaque Index (DPI)

    This study's primary outcome is the plaque index on the denture (DPI). Plaque indexes will be determined by means of erythrosine (GC Tri Plaque ID GelTM, Tokyo, Japan). Pictures in jpg format will be taken with a digital Nikon D80 camera with 105mm macro lens and processed with ImageJ 1.45s software (National Institutes of Health, Bethesda, MD, USA). Pictures will be converted into binary monochrome images. Specific standard thresholds will be determined to differentiate the plaque pixels (blue) from the plaque free ones (pink). This procedure is already proven by literature.

    T1: second session, after 3 months (for domiciliary oral hygiene).

Secondary Outcomes (6)

  • Probing Depth (PD);

    T0: first session (for professional oral hygiene).

  • Probing Depth (PD);

    T1: second session, after 3 months (for domiciliary oral hygiene).

  • Bleeding on Probing (BoP);

    T0: first session (for professional oral hygiene).

  • Bleeding on Probing (BoP);

    T1: second session, after 3 months (for domiciliary oral hygiene).

  • Plaque Index on implant abutments

    T0: first session (for professional oral hygiene).

  • +1 more secondary outcomes

Study Arms (4)

Standard

ACTIVE COMPARATOR

Patients will be professionally treated with standard dental hygiene treatment, and they will use a standard toothbrush for their domiciliary oral hygiene.

Procedure: Standard Professional Oral HygieneBehavioral: Standard Domiciliary Oral Hygiene

Glycine

EXPERIMENTAL

Patients will be professionally treated by adding glycine perio-flow in the treatment, and they will use a standard toothbrush for their domiciliary oral hygiene.

Procedure: Glycine Perio FlowBehavioral: Standard Domiciliary Oral Hygiene

Angled toothbrush

EXPERIMENTAL

Patients will be professionally treated with standard dental hygiene treatment, and they will use an angled toothbrush for their domiciliary oral hygiene.

Behavioral: Angled ToothbrushProcedure: Standard Professional Oral Hygiene

Glycine - Angled toothbrush

EXPERIMENTAL

Patients will be professionally treated by adding glycine perio-flow in the treatment, and they will use an angled toothbrush for their domiciliary oral hygiene.

Procedure: Glycine Perio FlowBehavioral: Angled Toothbrush

Interventions

Professional plaque and tartar removal by means of titanium curettes, bridge and implant floss and glycine perio-flow.

GlycineGlycine - Angled toothbrush

Patients will be educated and motivated in domiciliary oral hygien by means of bridge and implant floss and an angled toothbrush.

Angled toothbrushGlycine - Angled toothbrush

Professional plaque and tartar removal by means of titanium curettes, bridge and implant floss.

Angled toothbrushStandard

Patients will be educated and motivated in domiciliary oral hygien by means of bridge and implant floss and a standard toothbrush.

GlycineStandard

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Age \>= 18years
  • Good systemic health, with ASA classification \<= 2
  • Columbus Bridge ProtocolTM reinstation from at least six months

You may not qualify if:

  • Heavy smokers (\>= 10 cigarettes per day)
  • Pregnancy or breastfeeding
  • Autoimmune diseases with or without oral involvement
  • Biological complications on at least one of the dental implants
  • Perimplantits diagnosis, defined according to Lindhe et al's criteria \[5\]
  • Radicular bone \<4mm, evaluated by means of RX
  • Use of gingival overgrowth inducing drugs
  • Cognitive or motor impairments
  • Full-arch reinstations performed in other structures
  • Respiratory issues
  • Infective diseases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

S.C. Riabilitazione Orale Protesi Maxillo-Facciale e Implantologia Dentaria

Torino, 10126, Italy

RECRUITING

Related Publications (3)

  • Lindhe J, Meyle J; Group D of European Workshop on Periodontology. Peri-implant diseases: Consensus Report of the Sixth European Workshop on Periodontology. J Clin Periodontol. 2008 Sep;35(8 Suppl):282-5. doi: 10.1111/j.1600-051X.2008.01283.x.

  • Abi Nader S, Eimar H, Momani M, Shang K, Daniel NG, Tamimi F. Plaque Accumulation Beneath Maxillary All-on-4 Implant-Supported Prostheses. Clin Implant Dent Relat Res. 2015 Oct;17(5):932-7. doi: 10.1111/cid.12199. Epub 2014 Jan 27.

  • Mensi M, Scotti E, Sordillo A, Agosti R, Calza S. Plaque disclosing agent as a guide for professional biofilm removal: A randomized controlled clinical trial. Int J Dent Hyg. 2020 Aug;18(3):285-294. doi: 10.1111/idh.12442. Epub 2020 May 26.

MeSH Terms

Conditions

Dental Plaque

Condition Hierarchy (Ancestors)

Dental DepositsTooth DiseasesStomatognathic Diseases

Central Study Contacts

Armando Crupi, Dr.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

July 6, 2023

First Posted

July 28, 2023

Study Start

February 6, 2023

Primary Completion

October 15, 2024

Study Completion

December 15, 2024

Last Updated

July 23, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will share

Locations