Influence of Smoking on Periodontal Healing One Year After Active Treatment

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03265821

Enrollment

4227

Registered

2017-08-29

Start date

2015-01-31

Completion date

2015-12-31

Last updated

2023-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Periodontal Diseases, Smoking

Keywords

Smoking, Periodontal treatment, Periodontal disease, Healing

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.

Interventions

PROCEDUREHealing after treatment

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 100 Years

Healthy volunteers

Yes

Inclusion criteria

* Individuals referred to a specialist clinic for periodontal treatment

Exclusion criteria

* edentulous individuals

Design outcomes

Primary

Measure	Time frame	Description
Probing pocket depth	1 year	Probing pocket depth

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026