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The Effect of Functional Crown Lengthening Versus Deep Margin Elevation on Periodontal Tissues

NCT07380126 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2026-02-02

No results posted yet for this study

Summary

The present study will evaluate and compare the effect of functional CL and DME in the treatment of posterior teeth with class II caries clinically and on the level of TNF-α in the GCF of treated teeth.

Clinical evaluation of periodontal tissue in the form of probing depth as a primary outcome, clinical attachment level, plaque index, bleeding index, gingival index, pink aesthetic score, Radiographic evaluation of biological width and the level of TNF-α in the GCF as a secondary outcome.

Conditions

  • TNF Alpha

Interventions

PROCEDURE

Functional Crown lengthening

patients will undergo functional crown lengthening by raising a full thickness flap with osseous resection to establish a distance of 3 mm between the cervical margin of the cavity and the bone crest. Osteoplasty was performed in the adjacent and neighboring tooth surfaces to accomplish a smooth bone contour. The flaps will then be sutured in their new position

PROCEDURE

Deep Margin Elevation

patients will undergo deep margin elevation through a two-step direct restoration performed using the concepts of Progressive Matrixing and Wedging where the Deep subgingival cavity margin will be acquired. Then isolation by rubber dam. A curved matrix will seal the margin without any gingival or rubber dam entrapped in between. One step adhesive system will be performed under rubber dam isolation. Composite resin base is applied to raise the margin by about 2 mm. A bulk fill packable or flowable composite can be used. Finishing will be done using polishing strips and disks. Finally a bitewing radiograph will be taken to check the presence of overhangs or gaps before the final restoration.

Sponsors & Collaborators

  • Ain Shams University

    lead OTHER

Principal Investigators

  • Doaa A. Khattab, Associate Professor · Faculty of Dentistry - Ain shams university

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-02-01
Primary Completion
2026-09-01
Completion
2026-10-01

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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 NCT07380126 on ClinicalTrials.gov