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Digital vs Conventional VFR in Post-Orthodontic Retention

NCT07760935 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 52

Last updated 2026-08-12

No results posted yet for this study

Summary

This study is comparing two ways of making a retainer, the clear, removable kind worn after braces to see whether the way it's made affects gum health. One type is made using a digital scan of the teeth, and the other is made the traditional way, using a plaster mold. The study will look at how each type affects plaque buildup, gum swelling, and the depth of the space between the tooth and gum over a six-month period.

About 52 people who have just finished braces on both their upper and lower teeth will take part. Participants will be assigned to one of two groups: one group will receive a digitally made retainer, and the other will receive a traditionally made retainer.

Retainer Fitting Before the study begins, each participant's retainer is custom-made for their teeth, either from a digital scan or a plaster mold, depending on which group they're in. Participants will wear their retainer for 22 hours a day, taking it out only to eat and brush their teeth.

Daily Care Throughout the study, participants will follow the same tooth-brushing and gum-care routine, so that any differences seen between the two groups can be linked to the retainer itself rather than to differences in oral hygiene. Participants will be asked to avoid using mouthwash while wearing the retainer.

Check-Up Visits

Participants will attend four check-ups over six months:

Before the retainer is placed (baseline) One month after placement Three months after placement Six months after placement

At each visit, a dentist will check the teeth and gums for plaque buildup, gum swelling or bleeding, and pocket depth (the space between the tooth and gum) using a small measuring tool called a probe.

Follow-Up The final check-up at six months marks the end of the study for each participant. Participants can leave the study at any time if they choose.

Conditions

  • Periodontal Disease; Gingivitis; Dental Plaque; Malocclusion (Post-orthodontic Treatment)

Interventions

DEVICE

Digital Vacuum-Formed Retainer

PETG, 1.5 mm, fabricated via intraoral scan and 3D-printed model

DEVICE

Conventional Vacuum-Formed Retainer

PETG, 1.5 mm, fabricated via alginate impression and plaster model

Sponsors & Collaborators

  • Ziauddin University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
15 Years
Max Age
30 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-09-30
Primary Completion
2027-10-31
Completion
2027-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07760935 on ClinicalTrials.gov