NCT03098498

Brief Summary

This study compared the gain of periodontal attachment after concomitant one-stage removal of bacterial biofilms and subgingival calculus with a two-stage procedure removing subgingival calculus 6 weeks after the initial removal of soft subgingival bacterial biofilms.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
44

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2016

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

Study Start

First participant enrolled

June 1, 2016

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

March 27, 2017

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 31, 2017

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2017

Completed
7.1 years until next milestone

Results Posted

Study results publicly available

September 20, 2024

Completed
Last Updated

October 31, 2024

Status Verified

October 1, 2024

Enrollment Period

1.3 years

First QC Date

March 27, 2017

Results QC Date

June 1, 2022

Last Update Submit

October 7, 2024

Conditions

Keywords

periodontitisscalingattachment gainair polishingperiodontal lesion

Outcome Measures

Primary Outcomes (1)

  • Change in Clinical Attachment Loss

    Difference in millimeter (mm) in the distance between the cemento-enamel-junction and the probable bottom of the periodontal pocket recorded at baseline and at the end of the study in periodontal pockets with a baseline pocket depth ≥ 6 mm

    168 days (24 weeks)

Secondary Outcomes (4)

  • Change in Bleeding on Probing

    168 days (24 weeks)

  • Change in Probing Pocket Depth

    168 days (24 weeks)

  • Change in Gingival Index (GI)

    168 days (24 weeks)

  • Change in Plaque Index

    168 days (24 weeks)

Study Arms (2)

Two-Stage Subgingival Debridement

EXPERIMENTAL

Initially soft subgingival bacterial biofilms are removed from periodontal lesions by an airpolishing device and erythritol cleaning powder. 6 weeks later subgingival calculus is mechanically removed in a second step by mechanical scaling and root planing

Procedure: Subgingival Debridement

One-Stage Subgingival Debridement

ACTIVE COMPARATOR

Soft subgingival bacterial biofilms, as well as subgingival calculus are concomitantly removed from periodontal lesions by mechanical scaling and root planing

Procedure: Subgingival Debridement

Interventions

Removal of subgingival bacterial biofilms and subgingival calculus from periodontal lesions

Also known as: Scaling and Root Planing
One-Stage Subgingival DebridementTwo-Stage Subgingival Debridement

Eligibility Criteria

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

You may qualify if:

  • presence of periodontal disease
  • minimum of 1 tooth with an infrabony periodontal lesion and pocket depth ≥ 6mm
  • minimum of 15 natural teeth

You may not qualify if:

  • systemic disease interfering with periodontal healing (e.g. diabetes)
  • antibiotic therapy ≤ 12 month prior to study participation
  • necessity for preventive antibiotic therapy during dental interventions
  • inability to comply with the study protocol

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Dept. of Periodontology, University Hospital Wuerzburg

Würzburg, 97070, Germany

Location

MeSH Terms

Conditions

PeriodontitisPeriodontal Attachment Loss

Interventions

Tooth ExfoliationRoot Planing

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic DiseasesPeriodontal Atrophy

Intervention Hierarchy (Ancestors)

Dental Physiological PhenomenaDigestive System and Oral Physiological PhenomenaDental ScalingDental ProphylaxisPeriodonticsDentistrySubgingival CurettagePreventive Dentistry

Results Point of Contact

Title
Dr. Yvonne Jockel-Schneider
Organization
Department of Periodontology, University Hospital Wuerzburg

Study Officials

  • Ulrich Schlagenhauf, Prof. Dr.

    Chairman Dept. of Periodontology, University Hospital Wuerzburg, Germany

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The examiner performing the assessment of periodontal attachment gain is not aware of the type of the preceding intervention therapy (one-stage vs. two-stage) provided to the patient.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: controlled prospective parallel group intervention trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chairman Dept. of Periodontology

Study Record Dates

First Submitted

March 27, 2017

First Posted

March 31, 2017

Study Start

June 1, 2016

Primary Completion

September 1, 2017

Study Completion

September 1, 2017

Last Updated

October 31, 2024

Results First Posted

September 20, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

Locations