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Not yet recruitingNCT06397521Updated May 3, 2024

Gingival Margin Stability Following Esthetic Crown Lengthening Utilizing a Double Periodontal Surgical Guide

An interventional study of Crown lengthening in Crown Lengthening, sponsored by Ain Shams University. Not yet recruiting at 1 site in Egypt. Open to participants aged 25 Years to 45 Years. Per ClinicalTrials.gov, last updated 2024-05-03.

Sponsored by Ain Shams University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 9 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
21
Allocation
Randomized
Ages
25 Years to 45 Years
Sex
All
01

Study summary

In patients with excessive gingival display, esthetic crown lengthening procedure by means of scalpel, diode laser or electro-surgery could result in the same gingival marginal stability at 3 and 6 months follow up.

Read the detailed description

Scalpel crown lengthening has been recommended as the gold standard for treating excessive gingiva. Two other established tools used for gingivectomy procedures are electrosurgery and lasers. Laser crown lengthening may have the advantages of less bleeding during the procedure, faster healing, and less pain following the procedure. Electrosurgery which involves the application of a high- frequency electric current to the gingiva has been shown to produce minimal bleeding, ease and speed of cutting and reduced postoperative pain. The null hypothesis that the three techniques for aesthetic crown lengthening (ACLP) would show equivalent gingival margin stability at 3 and 6 months follow up.

02

Conditions studied

  • Crown Lengthening

Keywords

  • Digital
  • Surgical guide
03

In context

Lead sponsor

Ain Shams University is the lead sponsor of 1,876 studies on the registry; 423 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
25 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Altered passive eruption as presence of quadratic anterior teeth [crown width/length ratio

    • 0.85 ].
  • Gingival margin located coronal to the tooth cervical convexity and >2 mm of gingival band display during maximum smile.
  • Patients with treated periodontal disease (i.e., stage I of periodontitis);

Exclusion criteria

Exclusion Criteria:

  • Patients with systemic contraindications for oral surgery as uncontrolled diabetes.
  • patients on drug therapy related with drug-associated gingival enlargement.
  • Areas in which the remaining amount of keratinized gingiva after the submarginal incision is less than 3 mm.
  • Previous surgical treatment in the same area.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
21 participants (estimated)

Study arms

  • Experimental
    Scalpel crown lengthening

    Crown lengthening will be performed utilizing double periodontal surgical guide with scalpel.

    Procedure: Crown lengthening

  • Experimental
    Laser crown lengthening

    Crown lengthening will be performed utilizing double periodontal surgical guide with diode laser.

    Procedure: Crown lengthening

  • Experimental
    Electrosurgery crown lengthening

    Crown lengthening will be performed utilizing double periodontal surgical guide with electrosurgery.

    Procedure: Crown lengthening

Interventions

  • ProcedureCrown lengthening

    Investigation of the three techniques for aesthetic crown lengthening

06

What researchers measure

Primary outcomes

  1. position of the gingival margin

    position of the gingival margin (GM) (Degree of Gingival Rebound) after performing an aesthetic crown lengthening procedure

    Time frame: 3 and 6 months postoperative

07

Study locations

1 site
  • Doaa Adel Salah Khattab
    Cairo, Abbassia 11566, Egypt
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 3, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06397521
Lead sponsor
Ain Shams University
Responsible party
Doaa Adel Salah Khattab (Associate Professor, Ain Shams University) — Principal investigator
First posted
May 3, 2024
Start date
May 20, 2024 (estimated)
Primary completion
Dec 20, 2024 (estimated)
Completion
Dec 31, 2024 (estimated)
Last update
May 3, 2024

Study contacts

Doaa Adel-Khattab, PhD
Contact
dr.doaa.adel-khattab@dent.asu.edu.eg
01006814258
Doaa Adel-Khattab, PhD
study chair · Associate Professor Faculty of Dentistry, Ain Shams University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2024. You cannot join it, but the record below documents what was studied.

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