Evaluation of Masticatory Performance in Patients With Periodontitis (PAROCHEW)

The objective of this observational study is to assess the correlation between the severity of periodontal involvement and masticatory performance in patients with periodontitis.

The secondary objectives are to identify periodontal parameters that may be associated with a reduction in masticatory performance.

This study includes a single group.

Participants will be asked to perform a masticatory performance test consisting of chewing a piece of gum for 20 cycles.

Study Overview

• Status: Not yet recruiting
• Conditions: Periodontitis; Oral Disease; Periodontitis, Adult

Detailed Description

The study will be conducted over a one-year period. Patients diagnosed with periodontitis during their treatment within the Department of Dentistry will be invited to participate in the study. After being provided with clear information about the study and after their lack of objection has been recorded, they will be asked to undergo a masticatory performance test consisting of chewing a piece of chewing gum. The chewing gum samples collected at the end of this test will be analyzed in the CROC laboratory to determine a masticatory performance value. All collected data will then be analyzed to address the study objectives.

• Study Type: Observational
• Enrollment (Estimated): 100

Contacts and Locations

• Study Contact: Name: Lise Laclautre; Phone Number: 0473754963; Email: promo_interne_drci@chu-clermontferrand.fr

Study Locations

• France
  • Clermont-Ferrand, France
    • CHU clermont-ferrand
    • Contact: Lise Laclautre; Phone Number: 0473754963; Email: promo_interne_drci@chu-clermontferrand.fr
    • Principal Investigator: Thomas DOUILLARD

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

Adult patients diagnosed with periodontitis and followed at a university hospital (CHU), recruited during routine periodontal care.

Description

Inclusion Criteria:

• Patients followed at the university hospital (CHU) with a diagnosis of periodontitis.
• No objection from the patient to participate in the study.
• Patients able to speak and understand French.

Exclusion Criteria:

• Minors.
• Patients under legal protection (guardianship, trusteeship, or judicial protection measures).
• Pregnant or breastfeeding women.
• Patients who refuse to participate in the study.

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Value of the patient's masticatory performance	Value of the patient's masticatory performance, obtained from the masticatory performance test (two-color chewing gum test) (quantitative variable).	Baseline

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pocket Depth	Periodontal probing depth. Unit of Measure: Millimeters (mm)	Baseline
Gingival recessions	Measurement of gingival recession depth. Unit of Measure : Millimeters (mm)	Baseline
Bleeding on Probing (BOP)	Percentage (%) of sites showing bleeding on probing.	Baseline
Plaque Index	Plaque accumulation assessed using a validated plaque index (specify full name of index).	Baseline
Tooth Mobility	Tooth mobility assessed using the Miller classification (Grade 0-3). Higher scores indicate greater mobility and worse periodontal condition. Unit of Measure: Millimeters (mm)	Baseline
Edentulism	Presence or absence of edentulism.	Baseline
Severity of periodontal disease assessed by stage.	Stage of periodontitis according to the Chicago classification. Categorical (Stage 1 (early-stage periodontitis) to Stage 4 (severe periodontitis) as defined by classification)	Baseline (T0)

Collaborators and Investigators

• Sponsor: University Hospital, Clermont-Ferrand

Study record dates

Study Major Dates

• Study Start (Estimated): September 1, 2026
• Primary Completion (Estimated): September 1, 2027
• Study Completion (Estimated): September 1, 2027

Study Registration Dates

• First Submitted: June 11, 2026
• First Submitted That Met QC Criteria: June 18, 2026
• First Posted (Actual): June 24, 2026

Study Record Updates

• Last Update Posted (Actual): July 6, 2026
• Last Update Submitted That Met QC Criteria: July 2, 2026
• Last Verified: March 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Periodontal Diseases; Stomatognathic Diseases; Pathologic Processes; Chronic Disease; Disease Attributes; Pathological Conditions, Signs and Symptoms; Periodontitis; Mouth Diseases; Chronic Periodontitis
• Other Study ID Numbers: RNI 2026 DOUILLARD

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No