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Rehabilitation of Partially Dentate Patients with Modified Acrylic-Based Versus Cobalt-Chromium Removable Partial Dentures: A Randomized Controlled Clinical Trial

Rehabilitation of Partially Dentate Patients with Modified Acrylic-Based Versus Cobalt-Chromium Removable Partial Dentures: A Randomized Controlled Clinical Trial”

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
PACTR
Registry ID
PACTR202606630966882
Enrollment
108
Registered
2026-06-02
Start date
2026-07-01
Completion date
Unknown
Last updated
2026-09-14

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

Conditions

Oral Health

Interventions

modified design acrylic based RPD

Sponsors

James Muriithi Nyaga
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: All patients in need of a removable partial denture presenting in the clinics in the study areas during the study period. Aged between 20 and 59 years. The patients who are not enrolled as participants in another clinical study. The opposing dental arch will be dentate, with a well-distributed contact relationship with the new prosthesis, and will have healthy dental and periodontal tissues. Non -allergic to polymers and metallic alloys, Willingness to comply with study procedures, including maintaining good oral hygiene, prosthesis care, and compliance with the recall reviews.

Exclusion criteria

Exclusion criteria: Partially dentate patients who do not qualify to have their missing teeth replaced using the RPDs will be excluded from the study. Patients with systemic disorders, oral disease, occlusal discrepancy, abnormal oral habits such as bruxism and those diagnosed with TMJ problems will be excluded. Physical or psychological disorders prohibiting removable prosthesis use and qualitative assessment of oral rehabilitation, heavy smokers (>10 cigarettes/day), Evidence of present alcohol and/or drug abuse, Physical disability that may interfere with the ability to perform oral hygiene, and patients undergoing other active dental treatment will be excluded. Patients with poor oral hygiene who are not compliant with oral hygiene measures, patients already wearing partial dentures, and those with severe deep bite, supra-eruption, and severe crowding related orthodontic treatment needs, which may impact the prosthesis fitting, occlusion, and oral hygiene measures, will be excluded from the study. Patients with mucosal inflammation, stomatitis, ulcerations or flabby tissues, healing sockets, or retained roots on the saddle areas will also be excluded in this study.

Design outcomes

Primary

MeasureTime frame
ORAL HEALTH RELATED QUALITY OF LIFE (OHRQoL) USING THE FOLLOWING TOOTLS QUALITATIVE ASSESSMENT OF PATIENT VISUAL ANALOG SCALE (VAS) AS USED BY GRANDMONT ET AL AND ORAH HEALTH IMPACT PROFILE OHIP-14 ;PERIODONTAL TISSUES RES PERIODONTAL STATUS 1. TOOTH MOBILITY (MILLER’S CLASSIFICATION) ? NO MOBILITY ? LESS THAN 1 MM MOVEMENT IN THE HORIZONTAL PLANE ? MORE THAN 1 MM MOVEMENT IN THE HORIZONTAL PLANE ? MOVEMENT IN THE HORIZONTAL AND VERTICAL DIRECTIONS 2. PERIODONTAL DISEASE INDEX (PDI) – RAMFJORD, 1959(COBINES THE GINGIVAL INFLAMMATION, PROBING DEPTHS, AND ATTACHMENT LOSS) 0- NORMAL GINGIVA, NO INFLAMMATION 1- MILD INFLAMMATION – SLIGHT CHANGE IN COLOR, SLIGHT EDEMA, NO BLEEDING ON PROBING 2-MODERATE INFLAMMATION – REDNESS, EDEMA, GLAZING, BLEEDING ON PROBING 3-SEVERE INFLAMMATION – MARKED REDNESS AND EDEMA, SPONTANEOUS BLEEDING, ULCERATION 4. POCKET FORMATION UP TO 3 MM, NO GINGIVAL RECESSION 5. POCKET 3–6 MM, WITH ATTACHMENT LOSS 6. POCKET >6 MM, ADVANCED BONE/ATTACHMENT LOSS PLAQUE ASSESSMENT 3. THE ASSESSMENT OF PLAQUE INDEX (SILNESS & LÖE, 1964) 0- NO PLAQUE PRESENT 1-PLAQUE DETECTED ON PROBING OR USE OF A DISCLOSING AGENT 2-PLAQUE CLINICALLY VISIBLE TO THE NAKED EYE 3-HEAVY PLAQUE ACCUMULATION 4. THE ASSESSMENT OF PLAQUE INDEX ON THE PROSTHESES (MODIFIED PLAQUE INDEX FOR PROSTHESES) 0 NO VISIBLE PLAQUE 1PLAQUE COVERING LESS THAN 1/3 OF THE PROSTHEIS 2PLAQUE COVERING BETWEEN 1/3 AND 2/3 OF THE PROSTHESIS 3HEAVY PLAQUE COVERING MORE THAN 2/3, POSSIBLY WITH CALCULUS AND STAINING

Secondary

MeasureTime frame
Structural durability of the Modified Acrylic based RPD

Countries

Kenya

Contacts

Public ContactTonnie Muli

Dental representative at Kenya Medical and Dentist Council and Senior Lecturer Unit of preventive and periodontology University of Nairobi

mullitonnie@yahoo.com+254708414997

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Sep 19, 2026