NCT05120206

Brief Summary

Periodontitis patients, 40 cigarette smokers and 40 non-smokers (defined by cotinine measures in serum), were recruited to this double arm prospective cohort study. Data were collected 3 months following non-surgical and surgical periodontal treatment, and following 12 months with supportive periodontal therapy. Data collected were clinical attachment level, probing depth, bleeding on probing,oral bacteria, serum, blood (PAXgeneBlood), and gingival crevicular fluid.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Apr 2012

Typical duration for not_applicable

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

April 1, 2012

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2015

Completed
6.6 years until next milestone

First Submitted

Initial submission to the registry

October 5, 2021

Completed
1 month until next milestone

First Posted

Study publicly available on registry

November 15, 2021

Completed
Last Updated

November 15, 2021

Status Verified

November 1, 2021

Enrollment Period

2.9 years

First QC Date

October 5, 2021

Last Update Submit

November 2, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • PD ≥5 mm with BoP

    Corrected for clustering within patients, teeth, and sites over time, was the unit of the analysis and PD ≥5 mm with BoP was the outcome (dependent variable) dichotomized as present (1) or absent (0).

    24 months

Secondary Outcomes (10)

  • Teeth present

    24 months

  • Clinical periodontal attachmentloss

    24 months

  • Periodontal pocket depth

    24 months

  • Bleeding at site level

    24 months

  • Bleeding at patient level

    24 months

  • +5 more secondary outcomes

Study Arms (2)

Cigarette smokers with periodontitis

ACTIVE COMPARATOR

Periodontal therapy in cigarette smokers

Procedure: Non-surgical periodontal therapy: motivation and instruction in oral hygiene, debridement using handinstrumentation (Hu-Firedy,Chicago, IL, USA;and American Eagle Instruments,Missoula, MT,USA).

Non-smokers with periodontitis

ACTIVE COMPARATOR

Periodontal therapy in non-smokers

Procedure: Non-surgical periodontal therapy: motivation and instruction in oral hygiene, debridement using handinstrumentation (Hu-Firedy,Chicago, IL, USA;and American Eagle Instruments,Missoula, MT,USA).

Interventions

Non-surgical and surgical periodontal therapy in cigarette smokers and non-smokers

Also known as: Periodontal surgery: periodontal flap and gingivectomy with postoperative rinse with 0.2% chlorhexidine gluconate (Corsodyl, GlaxoSmithKline, London, UK).
Cigarette smokers with periodontitisNon-smokers with periodontitis

Eligibility Criteria

Age35 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • healthy subjects
  • age 35-75 years
  • diagnosed with chronic periodontitis
  • at least four non-adjacent teeth with proximal sites with a PD ≥6 mm and clinical attachment loss ≥5 mm with BoP and no radiographic signs of apical pathology.
  • either smokers (\>10 cigarettes per day for at least 5 years) or non-smokers (never smoked or not within the last 5 years).

You may not qualify if:

  • subjects who presented with any current medical condition or used medications known to affect periodontal healing
  • incorrectly reported smoking status
  • use of antibiotics within 6 months of the study
  • received subgingival scaling within 6 months of the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (2)

  • Bunaes DF, Lie SA, Enersen M, Aastrom AN, Mustafa K, Leknes KN. Site-specific treatment outcome in smokers following non-surgical and surgical periodontal therapy. J Clin Periodontol. 2015 Oct;42(10):933-42. doi: 10.1111/jcpe.12462. Epub 2015 Oct 28.

  • Bunaes DF, Mustafa M, Mohamed HG, Lie SA, Leknes KN. The effect of smoking on inflammatory and bone remodeling markers in gingival crevicular fluid and subgingival microbiota following periodontal therapy. J Periodontal Res. 2017 Aug;52(4):713-724. doi: 10.1111/jre.12438. Epub 2017 Mar 17.

MeSH Terms

Conditions

PeriodontitisCigarette Smoking

Interventions

Educational StatusOral HygieneGingivectomychlorhexidine gluconateChlorhexidinehalofantrine

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic DiseasesTobacco SmokingSmokingBehaviorTobacco Use

Intervention Hierarchy (Ancestors)

Socioeconomic FactorsPopulation CharacteristicsHygieneTherapeuticsPreventive DentistryDentistryOral Surgical ProceduresSurgical Procedures, OperativePeriodonticsBiguanidesGuanidinesAmidinesOrganic Chemicals

Study Officials

  • Dagmar F. Bunæs, PhD

    Department of Clinical Dentistry - periodontics, University of Bergen, Norway

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Prospective cohort study
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 5, 2021

First Posted

November 15, 2021

Study Start

April 1, 2012

Primary Completion

March 1, 2015

Study Completion

March 1, 2015

Last Updated

November 15, 2021

Record last verified: 2021-11

Data Sharing

IPD Sharing
Will not share