Skip to content

Effect of Nicotine Gingival Fibroblast Intoxication on the Response of Periodontal Treatment

Effect of Nicotine Gingival Fibroblast Intoxication on the Response of Periodontal Treatment, in Conventional and Non Smokers: a Controlled Clinical Trial

Status
Enrolling by invitation
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07491627
Acronym
ENIPT's
Enrollment
56
Registered
2026-03-24
Start date
2025-01-06
Completion date
2029-06-01
Last updated
2026-04-22

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

Conditions

Periodontitis, Smoking Cessation, Tobacco Dependence

Keywords

periodontitis, nicotine gingival intoxication, periodontal outcomes, periodontitis non surgical treatment

Brief summary

Impact of nicotine gingival intoxication on the clinical outcomes after periodontitis non surgical treatment

Detailed description

In patients suffured of periodontitis, to evaluate the effect of nicotine gingival tissue intoxication and others smoking indicators on the severity of periodontitis and outcomes after nonsurgical periodontal treatment."

Interventions

PROCEDUREperiodontal non-surgical treatment

The procedure will consist of non-surgical periodontal treatment (NSPT), consisting of the removal of supra- and subgingival plaque using ultrasonic instruments. Prior to the NSPT, all unstimulated saliva will be collected using Eppendorf. During local anesthesia for the NSPT, a gingival tissue biopsy will be performed using a 2mm wide and 4mm deep punch in the maxillary retromolar area behind the last tooth in the arch.

Sponsors

University of Liege
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Intervention model description

comparison between smokers and non-smokers

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

patient suffured of periodontitis, smoker and non-smoker * patient suffured of periodontitis * smoker and non-smoker * presence of a minimum of 6 teeth at each arch * minimum of 6 teeth with pocket depth of 5 mm * signed informed consent

Exclusion criteria

* diabetes, * connective tissue disease * pregnancy * radiotherapy * chemotherapy * psychological disease * previous periodontal therapy * antibiotics intake

Design outcomes

Primary

MeasureTime frameDescription
nicotine/cotinine in gum (ng/ml)the day of the periodontal non surgical treatmentconcentration cotinine and nicotine (ng/ml)

Secondary

MeasureTime frameDescription
PD (mm)baseline, the day of periodontal non- surgical treatment(PNST) , 3,6 and 12 months after PNSTs afterperiodontal pocket depth (mm) Secondary outcomes: percentage of sites with PD ≥ 6 mm, furcation involvement, mobility assessment, bleeding on probing score (BoP), plaque score (PI).
% PD ≥ 6 mm (%)baseline, the day of periodontal non- surgical treatment(PNST) , 3,6 and 12 months after PNSTs afterpercentage of sites with PD ≥ 6 mm
FTND score ( 0 to 9)the day of periodontal non-surgical treatmentFagerström test for nictnie dependance ( scale from 0 to 9) 0-2: Very low dependence 3-4: Low dependence 5: Medium dependence 6-7: High dependence 8-10: Very high dependence
PY (number/year)the day of periodontal non-surgical treatmentnumber of packet of cigarettes smoked per year
NCC (0 to 100)the day of periodontal non-surgical treatmentnumber of cigartes consummed per day * PK: number of packet of cigarettes smoked per year * FTND: Fagerström test for nictnie dependance
Furc (I,II or III)baseline, the day of periodontal non- surgical treatment(PNST) , 3,6 and 12 months after PNSTs afterfurcation involvement
periodontal ouctomesbaseline, the day of periodontal non- surgical treatment(PNST) , 3,6 and 12 months after PNSTs aftertooth mobility ( 1,2 or 3)
BOP (%)baseline, the day of periodontal non- surgical treatment(PNST) , 3,6 and 12 months after PNSTs afterbleeding on probing
PI (%)baseline, the day of periodontal non- surgical treatment(PNST) , 3,6 and 12 months after PNSTs afterplaque score

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 23, 2026