Occlusal Force and Chewing After Periodontal Therapy

Stage III and Stage IV periodontitis are associated with loss of periodontal support, tooth mobility, and impaired oral function, which may affect occlusal force distribution and chewing performance. Although non-surgical periodontal therapy effectively improves periodontal health, its effect on functional occlusal parameters and mandibular movements has not been comprehensively evaluated using digital technologies.

This prospective interventional study will investigate changes in occlusal force distribution and chewing cycle characteristics in patients with Stage III or Stage IV periodontitis before and after non-surgical periodontal therapy. Participants will receive standardized periodontal treatment and will be assessed at baseline, 8-12 weeks after completion of active therapy, and 3 months following re-evaluation. The T-Scan digital occlusal analysis system will be used to record occlusal force distribution, occlusion time, disocclusion time, and force balance. The Modjaw jaw-tracking system will be used to look at chewing cycle characteristics and mandibular movements. The study aims to determine whether periodontal therapy leads to measurable improvements in oral function and to provide objective functional outcome measures that may support periodontal and prosthodontic treatment planning.

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Key information

Conditions

Periodontitis Mouth Diseases Periodontal Diseases Stomatognathic Diseases

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Adults aged 18-70 years.
Diagnosis of Stage III or Stage IV periodontitis (Grade A, B, or C) according to the 2018 World Workshop Classification.
Presence of at least 20 natural teeth, including posterior occlusal support.
No periodontal treatment within the preceding 12 months.
Willing and able to attend all scheduled follow-up appointments

Exclusion criteria

Systemic conditions known to impair periodontal healing, including:

Uncontrolled diabetes mellitus (HbA1c >7%)
Immunosuppressive therapy
Bisphosphonate therapy
Removable prostheses replacing multiple posterior teeth.
Pregnancy or breastfeeding.
Current occlusal splint wearers.
Planned dental treatment other than periodontal therapy during the study period.
Heavy smokers (>20 cigarettes/day).
Stage I or Stage II periodontitis, gingivitis, or a healthy periodontium.
Severe manual dexterity impairment preventing adequate oral hygiene.
Currently undergoing periodontal treatment.

Treatment and study plan

Non-surgical periodontal therapy

Procedure

Standardized non-surgical periodontal therapy consisting of oral hygiene instruction, supragingival debridement, and full-mouth subgingival instrumentation using ultrasonic scalers and hand instruments according to the European Federation of Periodontology (EFP) S3-level clinical practice guideline for Stage III and Stage IV periodontitis.

Primary outcomes

Change in Right-Left Occlusal Force Balance

Time frame: Baseline, 8-12 weeks after completion of non-surgical periodontal therapy, and 3 months after re-evaluation.

Change in right-left occlusal force balance measured using the T-Scan digital occlusal analysis system.

Secondary outcomes

Change in Chewing Cycle Characteristics

Time frame: Baseline, 8-12 weeks after therapy, and 3 months after re-evaluation.

Assessment of changes in chewing cycle characteristics measured using the Modjaw jaw tracking system.

Study contacts

Contact information is provided by the study sponsor or research team.

Haitham Elbishari, PhD

CONTACT

[email protected]

+971529131315

Sponsors and collaborators

Lead sponsor

Mohammed Bin Rashid University of Medicine and Health Sciences

Other

Registry information

Official study title

Digital Assessment of Occlusal Force Distribution and Chewing Cycles Before and After Periodontal Therapy in Patients With Stage III-IV Periodontitis

Important dates

Study start: 2026
Primary completion: 2028
Study completion: 2028
First posted: Aug 19, 2026
Registry last updated: Aug 19, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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