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Deep Margin Elevation Vs Crown Lengthening

Biological Evaluation of Indirect Restorations in Endodontically-treated Posterior Teeth With Deeply Located Proximal Margins Following Deep Margin Elevation Versus Surgical Crown Lengthening: A Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05381298
Enrollment
20
Registered
2022-05-19
Start date
2020-09-02
Completion date
2022-05-05
Last updated
2022-05-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endodontically Treated Teeth

Brief summary

The present clinical trial will be conducted to reject or accept the null hypothesis that in endodontically treated posterior teeth with deeply located proximal margins, will the Deep Margin Elevation will have better results from surgical crown lengthening in terms of biological criteria?

Interventions

PROCEDUREDeep Margin Elevation using resin composite

After completion of the root canal treatment of the offended tooth and comprehensive evaluation of the obtained treatment, the randomly allocated patients will undergo deep margin elevation procedure where rubber dam isolation will be accomplished Followed by proper matricing and wedging ) followed by selective enamel etching for 10 seconds then universal adhesive application following the manufacturer instructions followed by application of flowable resin composite for the first 1 mm and light cured for 20 seconds according to the manufacturer recommendations followed by application of packable bulk fill composite to elevate the margins and light cured following the manufacturer instructions.

Participants in this group will undergo surgical crown lengthening in which an internal bevel incision will be done buccally and lingually followed by full thickness flap reflection using mucoperiosteal elevator, then interproximal bone removal will be done using end cutting bur to the planned position away from the margins by 3 mm. The flap will be displaced apically with apically positioned sutures. Postoperative instructions will be given to the patient aiming to control postsurgical complications including pain and swelling. Suture removal and assessment of the surgical site will be done after two weeks

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* Patients underwent endodontic treatment in the posterior region * 18-40 years * Male and Females * Medically free patients * Patients with healthy periodontium * Patients with thick biotype. * Patients having proximal margins violating the biological width

Exclusion criteria

* Patients with chronic periodontal disease. * Patients with persistent poor oral hygiene. * Patients with unsuccessful root canal treatment. * Periapical Abscess or Fistula. * Patients with proximal margins beyond the bone level. * Patients with developmental dental anomalies. * Patients undergoing or will start orthodontic treatment * Patients with removable prosthesis

Design outcomes

Primary

MeasureTime frameDescription
Clinical Attachment Level12 monththe clinical attachment level will be measured from restoration margin to the base of the clinical gingival sulcus according to Günay et al

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026