Peri-implantitis and Systemic Inflammation
LASSO
Local and Systemic Effects of Peri-implantitis and Its Treatment (LASSO). A Randomised Controlled Clinical Trial
1 other identifier
interventional
138
1 country
1
Brief Summary
To investigate the effects of peri-implantitis (a disease around dental implants) and its treatment at both local and systemic levels using clinical and biological parameters. One study with two parts which will run simultaneously. An initial observational study comparing cases and controls and a subsequent interventional study in which the cases will proceed to treatments and all participants will be followed up for 6 months.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jul 2023
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 11, 2020
CompletedStudy Start
First participant enrolled
July 19, 2023
CompletedFirst Posted
Study publicly available on registry
July 27, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedJuly 27, 2023
July 1, 2023
2 years
December 11, 2020
July 19, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Inflammation
Serum CRP
6-months after treatment
Secondary Outcomes (5)
Inflammation
Baseline, 3 and 6-months after treatment
Endothelial Function
Baseline, 3 and 6 months after treatment
OCT
Baseline, 3 and 6 months after treatment
Blood flow
Baseline, 3 and 6 months
Gingival tissue thickness
Baseline, 3 and 6 months after treatment
Study Arms (3)
Group A - Non-surgical hand instruments
ACTIVE COMPARATORAfter appropriate local anaesthesia of the treatment site supragingival, subgingival and implant surface debridement will be undertaken with Hu-Friedy titanium implant hand instruments only. Any remaining supragingival deposits will be polished using a contra-angle handpiece, rubber cup and Cleanic polishing paste.
Group B - Non-surgical Air-flow
ACTIVE COMPARATORAfter appropriate local anaesthesia of the treatment site supragingival, subgingival and implant surface debridement will be undertaken using EMS PerioFlow with Plus powder (Erythritol) and supplemented with EMS Piezon and EMS AirFlow and Plus powder as required.
Group C - Surgical Air-flow
ACTIVE COMPARATORAfter appropriate local anaesthesia of the treatment site a full thickness mucoperiosteal flap will be raised to adequately expose the tissue defect. Supragingival, subgingival and implant surface debridement will be undertaken using EMS PerioFlow with Plus powder (Erythritol) and supplemented with EMS Piezon and EMS AirFlow and Plus powder as required.
Interventions
An air/powder device for surface decontamination
To improve the surgical access for implant decontamination
Eligibility Criteria
You may qualify if:
- At least 18 years of age and in good general health
- A minimum of 20 teeth
- Participants must have at least one implant in situ with peri-implantitis as per its case definition
- Must voluntarily agree to sign the consent form
You may not qualify if:
- Currently on any weight reduction program
- History of diabetes
- Uncontrolled or currently undergoing treatment for systemic medical conditions
- Chronic treatment (defined as 2 weeks or more) of antibiotic, anti-inflammatory or anticoagulant therapy during the month preceding the baseline assessment
- Taking statins drugs
- History of alcohol or drug abuse
- Self-reported pregnancy or breastfeeding
- Patients who have active periodontitis as per its case definition and/or have had treatment for periodontitis within the last 1 year
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University College London
London, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor & Head of Department of Periodontology
Study Record Dates
First Submitted
December 11, 2020
First Posted
July 27, 2023
Study Start
July 19, 2023
Primary Completion
July 31, 2025
Study Completion
December 31, 2025
Last Updated
July 27, 2023
Record last verified: 2023-07