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Retrospective Analysis of Complications and Survival of Teeth Restored Following Crown Lengthening

NCT07259187 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 81

Last updated 2025-12-02

No results posted yet for this study

Summary

The ultimate goal for every dental restoration is to restore and maintain the dentition's functionality along with preserving periodontal support. The long-term success of a restored tooth depends on the retention of a healthy periodontium. When restoring a short clinical crown, the clinician may contemplate placement of subgingival margin to gain additional length for retention purposes. Thus, crown lengthening procedure is performed to gain access to the natural tooth structure while maintaining the periodontal health and to increase the retention of the restoration. A full crown restoration is needed to protect the compromised tooth from fracture. The prognosis of these teeth depends on the long-term success rate of each component of the overall treatment and the follow up maintenance.

In order to assist dentists to make an evidence-based decision during treatment planning, this retrospective study aims to investigate the complications and survival rate of the teeth receiving crown following crown lengthening.

Conditions

  • Limited Tooth Structure
  • Crown Lengthening

Interventions

DIAGNOSTIC_TEST

Periapical radiograph

Clinical and radiographic examinations were completed for the treated teeth. For participants who had radiographs within past one year of examination no further radiographs were obtained. Demographic parameters, systemic and patient-related factors such as smoking, diabetes mellitus, parafunctional habits (self-reported or diagnosed bruxism and clenching), location of tooth (maxilla or mandible, anterior or posterior), history of treated periodontitis, history of endodontic treatment, and history of regular dental attendance were documented. Furthermore, periodontal status was evaluated by assessing mobility, probing pocket depth, bleeding index, plaque index, restorative margin position in relation to the gingival margin, and crown to root ratio based on periapical radiographs taken using long-cone parallel technique. In addition, prosthetic factors including crown material and opposing dentition, namely tooth, crown, or removable partial denture were recorded.

Sponsors & Collaborators

  • Mohammed Bin Rashid University of Medicine and Health Sciences

    lead OTHER

Principal Investigators

  • Maanas Shah, BDS MSD CAGS MRACDS · Mohammed Bin Rashid University of Medicine and Health Sciences

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-03-22
Primary Completion
2023-03-31
Completion
2023-06-30

Countries

  • United Arab Emirates

Study Locations

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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 NCT07259187 on ClinicalTrials.gov