Atrophic Mandibular Ridge in Edentulous PatientsNCT07892716
Comparison Between Neutral Zone and Admixed Impression Techniques for Atrophic Mandibular Ridges
A study testing Neutral zone impression technique and Admixed impression technique in people with Atrophic Mandibular Ridge in Edentulous Patients, run by Watim Medical & Dental College.
Trial summary
This study aims to compare two impression techniques, the neutral zone technique and the admixed impression technique, for making complete dentures in patients with atrophic mandibular ridges (severely resorbed lower jaw ridges). Read more about this study
- Who is it for?
- Ages 50 to 70 years
- Conditions the study is for
- Atrophic Mandibular Ridge in Edentulous Patients
- What is being tested?
- Neutral zone impression technique and Admixed impression technique
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- No sites listed yet
- Study dates
- Sep 2027to Mar 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 50 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients aged 50 to 70 years Completely edentulous in lower jaw Atrophic mandibular ridge as per operational definition Patients coming for new complete denture or havin ill fitting denture
- -
Who cannot join
- History of trauma or surgery history of neuromuscular disorders affecting tongue,lips or cheeks history of oral infections or untreated oral lesions history of systemic conditions where denture impression is not advised history of suitabilty for implant supported prosthesis history of poor cooperation or unable to follow dentists instruction during impression
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Comparison Between the Neutral Zone and Admixed Impression Techniques in the Management of Atrophic Mandibular Ridges
This study aims to compare two impression techniques, the neutral zone technique and the admixed impression technique, for making complete dentures in patients with atrophic mandibular ridges (severely resorbed lower jaw ridges). A total of 60 patients aged 50-70 years will be included and divided into two groups of 30 patients each. One group will receive complete dentures made using the neutral zone technique, while the other group will receive complete dentures made using the admixed impression technique. Patient comfort during impression making will be assessed and compared between the two techniques to determine which technique provides greater comfort for patients with atrophic mandibular ridges.
- Being tested
- Neutral zone impression technique, Admixed impression technique
- Keywords
- neutral zone technique, admixed impression technique, atrophic manibular ridge, complete denture, patient comfort, edentulous mandible
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Neutral zone impression techniqueProcedure or surgery
A denture impressin technique used for fabrication of mandibular complete dentures in patients with atrophic mandibular ridges.The technique records the neutral zone to guide denture tooth arrangement and polished surface.
Admixed impression techniqueProcedure or surgery
admixed impression technique for fabrication of complete denture in atrophic mandibular ridges
| Study group | Role | What they receive |
|---|---|---|
| Neutral zone technique | Experimental | Paients will undergo mandibular impression making using neutral zone technique for the management of atrophic mandibular ridges.Patient comfort during the impression procedure will be assessed using a structured four item questionnaire Receives: Procedure: Neutral zone impression technique |
| Admixed impression technique | Active comparator | Patients will undergo mandibular impression making using the admixed impression technique for management of atrophic mandiular ridges.Patient comfort during the impression will be assessed using same structure four item questionnaire. Receives: Procedure: Admixed impression technique |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean total patient comfort score during impression making
Patient comfort during the impression procedure will be assessed using a structured four item questionnaire evaluating difficulty in tongue movements,irritation during impression,difficulty in following the dentists instructions and duration of the impression procedure.Each item will be scored on a 5 point likert scale and the four scores will be summed to obtain total comfort score ranging from 4 to 20.Higher scores indicate greater patient comfort.The mean total comfort scores will be compared between neutral zone and admixed impression teachnique groups.
Measured: Immediately after completion of the impression procedure
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Oct 2026
- Study startSep 2027 (estimated)
- Primary completionDec 2027 (estimated)
- Study completionMar 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Atrophic Mandibular Ridge in Edentulous PatientsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- People will be assigned to one of two parallel groups.Group A will receive the neutral zone impression technique and Group B will receive the admixed impression technique. Outcomes will be compared between the two groups.
- Masking
- None (open label)
- Enrolment
- 60 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Watim Medical & Dental College
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Seema Kazim, Watim Medical & Dental College
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07892716
- Sponsor's protocol ID
- WMDC/R&D(ERB)/2025/244
- Status last verified
- Oct 2026
- First submitted
- 18 Oct 2026
- Last updated
- 23 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Individual participants level data will not be shared with other researchers.Study findings will be reported in aggregate form whilw maintaining the confidentiality and privacy of participants.
Publications
Raja IM, Hosein M, Khan MA. Comparison between the neutral zone and admixed impression techniques in the management of atrophic mandibular ridges. Med Forum. 2022;33(2):109-113.
Study at a glance
From the registry record, last updated by the sponsor on 23 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison Between the Neutral Zone and Admixed Impression Techniques in the Management of Atrophic Mandibular Ridges
- ClinicalTrials.gov ID
- NCT07892716
- Acronym / sponsor ID
- WMDC/R&D(ERB)/2025/244
- Keywords
- neutral zone technique, admixed impression technique, atrophic manibular ridge, complete denture, patient comfort, edentulous mandible
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 60 participants (estimated)
- Lead sponsor
- Watim Medical & Dental CollegeUniversity, hospital or other
- Study start
- Sep 2027 (estimated)
- Primary completion
- Dec 2027 (estimated)
- Study completion
- Mar 2028 (estimated)
- First posted
- 23 Oct 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to compare two impression techniques, the neutral zone technique and the admixed impression technique, for making complete dentures in patients with atrophic mandibular ridges (severely resorbed lower jaw ridges). A total of 60 patients aged 50-70 years will be included and divided into two groups of 30 patients each. One group will receive complete dentures made using the neutral zone technique, while the other group will receive complete dentures made using the admixed impression technique. Patient comfort during impression making will be assessed and compared between the two techniques to determine which technique provides greater comfort for patients with atrophic mandibular ridges.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- People will be assigned to one of two parallel groups.Group A will receive the neutral zone impression technique and Group B will receive the admixed impression technique. Outcomes will be compared between the two groups.
| Arm | Type | Receives |
|---|---|---|
| Neutral zone technique | Experimental | Procedure: Neutral zone impression techniquePaients will undergo mandibular impression making using neutral zone technique for the management of atrophic mandibular ridges.Patient comfort during the impression procedure will be assessed using a structured four item questionnaire |
| Admixed impression technique | Active comparator | Procedure: Admixed impression techniquePatients will undergo mandibular impression making using the admixed impression technique for management of atrophic mandiular ridges.Patient comfort during the impression will be assessed using same structure four item questionnaire. |
Who may qualify
- Ages
- 50 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Patients aged 50 to 70 years Completely edentulous in lower jaw Atrophic mandibular ridge as per operational definition Patients coming for new complete denture or havin ill fitting denture
- -
Key exclusion criteria (1 listed)
- History of trauma or surgery history of neuromuscular disorders affecting tongue,lips or cheeks history of oral infections or untreated oral lesions history of systemic conditions where denture impression is not advised history of suitabilty for implant supported prosthesis history of poor cooperation or unable to follow dentists instruction during impression
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Neutral zone impression techniqueA denture impressin technique used for fabrication of mandibular complete dentures in patients with atrophic mandibular ridges.The technique records the neutral zone to guide denture tooth arrangement and polished surface. | Procedure or surgery | Neutral zone technique |
| Admixed impression techniqueadmixed impression technique for fabrication of complete denture in atrophic mandibular ridges | Procedure or surgery | Admixed impression technique |
Primary outcome
Mean total patient comfort score during impression making
Time frame: Immediately after completion of the impression procedure
Patient comfort during the impression procedure will be assessed using a structured four item questionnaire evaluating difficulty in tongue movements,irritation during impression,difficulty in following the dentists instructions and duration of the impression procedure.Each item will be scored on a 5 point likert scale and the four scores will be summed to obtain total comfort score ranging from 4 to 20.Higher scores indicate greater patient comfort.The mean total comfort scores will be compared between neutral zone and admixed impression teachnique groups.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Oct 2026.
- BackgroundRaja IM, Hosein M, Khan MA. Comparison between the neutral zone and admixed impression techniques in the management of atrophic mandibular ridges. Med Forum. 2022;33(2):109-113.
- Individual participant dataSharing planned: No. Individual participants level data will not be shared with other researchers.Study findings will be reported in aggregate form whilw maintaining the confidentiality and privacy of participants.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Questions about this trial
What is this clinical trial studying?
A study testing Neutral zone impression technique and Admixed impression technique in people with Atrophic Mandibular Ridge in Edentulous Patients, run by Watim Medical & Dental College.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 23 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Seema kazim, BDS (0092 3435562364, skazim952@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Mean total patient comfort score during impression making (time frame: Immediately after completion of the impression procedure). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07892716, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Oct 2026.