Digital tool aims to make gummy smile surgery more precise
NCT ID NCT07575087
First seen Jun 25, 2026 · Last updated Sep 04, 2026 · Updated 2 times
Summary
This study tested whether a custom digital surgical guide helps dentists perform crown lengthening more accurately than the usual method. Twenty-four adults with gummy smiles due to a condition called altered passive eruption took part. The digital guide uses 3D scans and imaging to plan both gum and bone removal, while the traditional method relies on the dentist's visual judgment and manual measurements. The researchers measured how much tooth showed after three months, along with surgery time, pain, and satisfaction.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Dual digitally fabricated surgical guide (procedure)
- What this could lead to
- If successful, this digital guide could make crown lengthening surgery more precise, faster, and less painful for patients with gummy smiles.
- What could go wrong
- This is a small, early-stage trial with only 24 participants, so results may not apply to everyone. The digital guide may not improve outcomes enough to justify its cost or complexity.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
18 people
The number who actually took part.
- Started
-
Jul 2024
- Finished
-
Feb 2026
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 40 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients presenting with gummy smile due to altered passive eruption (Type B1) * Presence of at least 6 maxillary anterior teeth indicated for crown lengthening * Good oral hygiene and ability to maintain plaque control * Systemically healthy patients Exclusion Criteria: * Poor oral hygiene * Smokers * Pregnancy or lactation * Systemic diseases affecting periodontal tissues * Previous periodontal surgery in the study area * Active periodontal disease * Presence of periapical pathology in the study area * Ongoing orthodontic treatment * Gummy smile due to skeletal or muscular causes
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Gingival overgrowth are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
School of Dental Medicine
Damascus, Syria
More trials for these conditions
Other studies related to the condition(s) this trial covers.