Skip to content

Comparing Impression Techniques for Maxillary Complete Denture Retention

Effect of Two Impression Techniques on Retention of Maxillary Complete Denture in Pakistani Population: A Double-blinded Crossover Randomized Controlled Trial

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06497621
Enrollment
35
Registered
2024-07-12
Start date
2025-07-01
Completion date
2027-03-31
Last updated
2024-07-12

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

Conditions

Denture Retention, Patient Satisfaction

Keywords

Crossover, Complete Denture, Retention, Poly-vinyl siloxane

Brief summary

The primary objective of this protocol is to compare retention in maxillary complete dentures using single-versus two-step Poly-vinyl Siloxane (PVS) impressions in edentulous patients at denture delivery. Secondary objectives include assessing patient satisfaction with impression methods and denture satisfaction after a two-month adaptation and comparing post-delivery adjustment visits.

Interventions

PROCEDURESingle step PVS impression

Single-step final impression method for complete denture fabrication using medium body PVS for border molding and wash impression in a single-step (i.e., one insertion of impression tray in mouth).

PROCEDUREConventional two-step PVS impression

Border molding with heavy-body PVS first, followed by wash impression with light-body PVS

Sponsors

Aga Khan University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
TRIPLE (Subject, Caregiver, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
35 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Patients with mild to moderately resorbed maxillary alveolar ridge * Patients with bimaxillary edentulous arches * Patients aged between 35 to 85 years willing to participate in the study * Patients who could be available for follow up visits

Exclusion criteria

* Patients with palatal torus or bony exostoses or severe undercuts in the maxillary arch * Patients with uncontrolled diabetes, osteoporosis, osteomalacia and osteopenia * Patients with xerostomia * Patients with mucosa covering the denture bearing area with signs of inflammation, ulceration, or hyperplasia. * Patients undergoing radiotherapy or chemotherapy or maxillofacial surgery * Patients suffering from maxillofacial trauma * Patients with neuromuscular disorders * Patients with clinical signs and symptoms of temporomandibular joint dysfunction * Patients with highly resorbed maxillary ridge and/ or flabby ridge * Patient with hypersensitivity to silicone materials

Design outcomes

Primary

MeasureTime frameDescription
Retention of maxillary denture using digital force meterAt the delivery appointment for each denture at an average of 2.5 week from the start of denture fabrication and at 8th week (+/- 3 days)Three readings will be taken for each maxillary denture using digital force meter, and an average will be calculated in units for Newton (N) or Kg.m/s2.

Secondary

MeasureTime frameDescription
Patient satisfaction with impression methods via the Burdens in Dental Impression-Making Questionnaire (BiDIM-Q)At the delivery appointment for each denture at an average of 2.5 week from the start of denture fabrication and at 8th week (+/- 3 days)The questionnaire consists of 12 questions covering various aspects of the impression-making process. Prosthodontists will request patients to score each question from 1 to 100 to gauge their response. A higher score for an aspect of the impression-making procedure will indicate a higher degree of satisfaction.
Denture satisfaction using the Denture Satisfaction (DS) questionnaire.At 2 monthsThe questionnaire comprises 11 questions, answered on a 4-point Likert-type scale to assess the patient's experience with the dentures provided.

Other

MeasureTime frameDescription
Number of post-insertion visits for denture adjustmentAt the end of adjustment period of each denture at an average of 1-month after denture deliveryThe research team will record the post-delivery visits required to adjust dentures fabricated from two different impression methods in the study Pro-forma.

Contacts

Primary ContactKazmi MR Principle investigator, FCPS
syed.murtaza@aku.edu+923212412423

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026