Computer Guided Esthetic Crown Lengthening

March 31, 2023 updated by: Eman Borham, Ain Shams University

Treatment of Excessive Gingival Display Using Conventional Esthetic Crown Lengthening Versus Computer Guided Esthetic Crown Lengthening: (A Randomized Clinical Trial)

The objective of the present study was to evaluate the effectiveness of surgical esthetic crown lengthening using digitally assisted 3D printed surgical stents in management of excessive gingival display due to altered passive eruption.

Study Overview

Detailed Description

The objective of the present study was to evaluate the effectiveness of surgical esthetic crown lengthening using digitally assisted 3D printed surgical stents in management of excessive gingival display due to altered passive eruption.

Primary objectives:

Wound healing Score: the clinical features of periodontal wound healing were measured according to Hagenaars et al using the following parameters: swelling of the soft tissue , color of the gingiva, probing pocket depth, bleeding index, plaque index, clinical attachment level. These signs were assessed at 1 week, 3 months and 6 months post-operative.

Operating time: the time needed to complete each procedure was calculated in minutes by using a stopwatch from the time of the first incision till the completion of bone removal.

Secondary objectives:

Patient satisfaction: was assessed using visual analogue scale at 24 hours, 7 days and 14 days post operatively. (Zero is for minimum pain and ten is for maximum pain).

Gingival margin stability: The position of gingival margin in relation to a reference point was evaluated immediately after surgery, 3 months and 6 months healing period .

Study Type

Interventional

Enrollment (Actual)

16

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Cairo, Egypt
        • Ain Shams University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 40 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Males and females within age range of 20-40 years.
  2. Systemic (medically) free individuals.
  3. Excessive gingival display in the esthetic zone (more than 3mm of gingival display at full smiling)
  4. Patients with good oral hygiene.

Exclusion Criteria:

  1. Smokers (15)
  2. Teeth with compromised periodontium.
  3. Pregnant and lactating females.
  4. The vulnerable group: patients with mental or physical disabilities.
  5. Patients with parafunctional habits.
  6. Medications that affect periodontal wound healing.
  7. Periodontal surgery in the esthetic zone in the past 6 months.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Test Group
Eight patients indicated for ECL were treated using digitally assisted crown lengthening utilizing 3D printed surgical stents.
Computer guided Esthetic crown lengthening
Active Comparator: Control Group
Eight patients indicated for ECL were managed by conventional crown lengthening.
Conventional Surgical Esthetic Crown Lengthening

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Wound Healing
Time Frame: Change in soft tissue features from 1 week to 6 months post operative
the clinical features of periodontal wound healing were measured according to Hagenaars et al using the following parameters: color of the gingiva (C) (a score of 0-2) 0=no redness, 1=moderate redness, 2=pronounced redness
Change in soft tissue features from 1 week to 6 months post operative
Operating time
Time Frame: During surgery
the time needed to complete each procedure from the first incision till the completion of bone removal
During surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Patient satisfaction
Time Frame: 1 day - 1 week - 2 weeks post operative
will be assessed using numerical visual analogue scale (scale of zero - no pain to ten- maximum pain)
1 day - 1 week - 2 weeks post operative
Gingival margin stability
Time Frame: Baseline - 3 months post operative - 6 months post operative
The position of gingival margin in reference to an index is measured from the incisal edge to the free gingival margin
Baseline - 3 months post operative - 6 months post operative

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 2, 2022

Primary Completion (Actual)

September 10, 2022

Study Completion (Actual)

October 12, 2022

Study Registration Dates

First Submitted

June 5, 2022

First Submitted That Met QC Criteria

August 21, 2022

First Posted (Actual)

August 23, 2022

Study Record Updates

Last Update Posted (Actual)

April 3, 2023

Last Update Submitted That Met QC Criteria

March 31, 2023

Last Verified

December 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Guided gummy smile correction

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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