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RecruitingNCT07034079Palatal rugaeUpdated Jul 7, 2026

The Impact of Palatal Rugae Addition to Complete Dentures on Patients' Satisfaction and Oral Health Related Quality of Life

A Phase 2 interventional study of complete dentures in Edentulism, sponsored by Pakistan Institute of Medical Sciences. Recruiting at 1 site in Pakistan. Open to participants aged 40 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-07.

Sponsored by Pakistan Institute of Medical Sciences · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
40 Years to 80 Years
Sex
All
01

Study summary

In conventional maxillary complete dentures, the palatal surface is typically smooth and polished, lacking the natural anatomy of the palatal rugae. While this design facilitates ease of cleaning, it may compromise the functional feedback required for speech and other oral functions. Since the palatal rugae contain mechanoreceptors essential for guiding the tongue during phonation and mastication, replicating these structures may enhance oral function and patient adaptation.

Given the variation in clinical outcomes reported in prior studies, a randomized crossover clinical trial is warranted to assess the impact of adding anatomically replicated palatal rugae to complete dentures.

Read the detailed description

In conventional maxillary complete dentures, the palatal surface is typically smooth and polished, lacking the natural anatomy of the palatal rugae. While this design facilitates ease of cleaning, it may compromise the functional feedback required for speech and other oral functions. Since the palatal rugae contain mechanoreceptors essential for guiding the tongue during phonation and mastication, replicating these structures may enhance oral function and patient adaptation.

Given the variation in clinical outcomes reported in prior studies, a randomized crossover clinical trial is warranted to assess the impact of adding anatomically replicated palatal rugae to complete dentures. This study aims to evaluate whether incorporating palatal rugae can improve patient satisfaction and oral health-related quality of life when compared to conventional dentures with a smooth palatal surface.

By assessing patient-reported outcomes in a controlled and systematic manner, this research will contribute valuable evidence toward optimizing complete denture design for better functional and psychological outcomes in edentulous patients.

OBJECTIVE

  • To compare conventional complete maxillary dentures with a smooth, polished palatal surface to those incorporating anatomical palatal rugae, in terms of patient-reported outcomes and oral health-related quality of life.
02

Conditions studied

  • Edentulism

Keywords

  • Palatal rugae
  • Oral health impact profile
  • Edentulism
  • complete denture
03

In context

Lead sponsor

Pakistan Institute of Medical Sciences is the lead sponsor of 51 studies on the registry; 24 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Patients aged 45-80 years.
  • Completely edentulous for at least 3 months.
  • Seeking new complete maxillary dentures for the first time.
  • Provided written informed consent
  • Motivated and compliant patients, willing to return for follow-up (helps reduce attrition bias)
  • Patients with Class I maxillomandibular relationship

Exclusion criteria

EXCLUSION CRITERIA

  • Patients with severe systemic diseases or neuromuscular dysfunction.
  • Presence of mental or auditory impairment.
  • History of oral pathology, xerostomia, or ankyloglossia (tied tongue).
  • Previous or experienced complete denture wearers.
  • Patient with strong gag reflex
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    with palatal rugae initially

    Received maxillary complete denture with palatal rugae first, followed by a smooth polished palatal surface denture after a 2-month adaptation period.

    Device: complete dentures

  • Experimental
    without palatal rugae initially

    Received a smooth polished palatal surface denture first, followed by a rugae-enhanced denture after a 2-month adaptation period.

    Device: complete dentures

Interventions

  • Devicecomplete dentures

    Participants were randomly allocated into two intervention sequences using a computer-generated randomization list. The two sequences were: * Group A: Received maxillary complete denture with palatal rugae first, followed by a smooth polished palatal surface denture after a 2-month adaptation period. * Group B: Received a smooth polished palatal surface denture first, followed by a rugae-enhanced denture after a 2-month adaptation period.

06

What researchers measure

Primary outcomes

  1. General satisfaction

    VAS score comparison between palatal contours

    Time frame: 2 months

Secondary outcomes

  1. Satisfaction with eating, taste, speech, phonetics, ease of cleaning

    OHIP

    Time frame: 2 months

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07034079
Lead sponsor
Pakistan Institute of Medical Sciences
Collaborators
School of dentistry, Shaheed Zulfiqar Ali Bhutto Medical University Islamabad Pakistan
Responsible party
Chawla Rashmi (Resident, Shaheed Zulfiqar Ali Bhutto Medical University) — Principal investigator
First posted
Jun 24, 2025
Start date
Jul 1, 2026 (estimated)
Primary completion
Dec 31, 2026 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
Jul 7, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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