NCT03265821

Brief Summary

The aim of this study was to investigate whether cigarette smoking had any impact on the clinical outcomes 1 year after active periodontal treatment. Eligible for the study were 5680 individuals 20-85 years, referred to the specialised clinic for periodontal treatment at Gävle County Hospital between the years of 1980 and 2015. Before examination, all individuals filled in a questionnaire regarding their medical health, medication and smoking habits. Excluded were edentulous individuals and where clinical data 1-year after active treatment, or smoking habits were missing (n=1453). Complete data for analyses was available for 4227 individuals.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
4,227

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2015

Shorter than P25 for all trials

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

January 1, 2015

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2015

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

August 28, 2017

Completed
1 day until next milestone

First Posted

Study publicly available on registry

August 29, 2017

Completed
Last Updated

June 29, 2023

Status Verified

June 1, 2023

Enrollment Period

11 months

First QC Date

August 28, 2017

Last Update Submit

June 27, 2023

Conditions

Periodontal DiseasesSmoking

Keywords

SmokingPeriodontal treatmentPeriodontal diseaseHealing

Outcome Measures

Primary Outcomes (1)

  • Probing pocket depth

    Probing pocket depth

    1 year

Interventions

Healing after treatmentPROCEDURE

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Individuals 20-85 years, referred to the specialised clinic for periodontal treatment at Gavle County Hospital, Sweden between the years of 1980 and 2015.

You may qualify if:

  • Individuals referred to a specialist clinic for periodontal treatment

You may not qualify if:

  • edentulous individuals

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Periodontal DiseasesSmoking

Condition Hierarchy (Ancestors)

Mouth DiseasesStomatognathic DiseasesBehavior

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Reg dental hygienist, medical doctor

Study Record Dates

First Submitted

August 28, 2017

First Posted

August 29, 2017

Study Start

January 1, 2015

Primary Completion

December 1, 2015

Study Completion

December 1, 2015

Last Updated

June 29, 2023

Record last verified: 2023-06