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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

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Abstract

Objective

The current clinical trial was conducted to evaluate the effect of proximal indirect restorations in endodontically treated posterior teeth with deeply located margins following deep margin elevation compared to surgical crown lengthening.

Material and methods

Deep proximal cavities in endodontically treated posterior teeth were randomly assigned into two groups; deep margin elevation (DME) or crown lengthening (CL). The clinical attachment level (CAL), probing depth (PD), bleeding on probing (BOP), crestal bone level (CBL), and secondary caries were evaluated at the baseline, 1, 3, 6, 9, and 12 months.

Results

A total of 20 proximal cavities were included in the study; there was no significant difference between the two groups regarding mean CAL values at the baseline and 1 month, while there was a significant difference between the two groups in all other periods. Regarding the PD, there was no statistical significance between the two groups except at 9 and 12 months, where CL showed higher mean PD values than DME. There was no statistically significant difference in BOP or CBL between the two groups.

Conclusions

DME and CL are considered clinically successful with favorable biologic responses.

Clinical relevance

The deep margin elevation approach could provide a more conservative solution when relocating deeply seated cervical margins in a more coronal position. DME reduced the number of visits and time needed for the restoration of endodontically treated teeth. Surgical crown lengthening remains a gold standard procedure in the re-establishment of the supracrestal tissue attachment, especially in cases where cervical margins are beyond the elevation capacity.

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Data Availability

The data that support the findings of this study are not openly available due to reasons of sensitivity and are available from the corresponding author upon reasonable request.

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Author information

Authors and Affiliations

  1. Department of Conservative Dentistry, Faculty of Dentistry, Cairo University, Cairo, Egypt

    Ahmed Tarek Farouk & Olfat El Sayed Hassanein

  2. Operative Dentistry Department, Faculty of Dentistry, Misr International University, Cairo, Egypt

    Ahmed Tarek Farouk & Ola Ibrahim Fahmy

  3. Department of Periodontology, Faculty of Dentistry, Cairo University, Cairo, Egypt

    Ahmed M. Elkady & Hani ElNahass

  4. Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Centre of the Johannes Gutenberg-University Mainz, Mainz, Germany

    Hani ElNahass

Authors
  1. Ahmed Tarek Farouk
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  2. Olfat El Sayed Hassanein
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  3. Ola Ibrahim Fahmy
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  4. Ahmed M. Elkady
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  5. Hani ElNahass
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Contributions

A T: performed all the restorative clinical steps, Conceptualization, Writing original draft.

A.K: performed all periodontal clinical steps.

O.H. Methodology,supervision.

O.F. editing and reviewing, validation.

H. N. methodology,Writing original draft.

Corresponding author

Correspondence to Hani ElNahass.

Ethics declarations

Ethics approval and consent to participate

All the study participants were informed about all the details of the study, and all of them signed a written consent; furthermore, they all agreed on the use of the data for publication. Ethical approval was obtained by the Ethics Committee (CREC) of the Faculty of Dentistry Cairo University.

Competing interests

The authors declare no competing interests.

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Farouk, A.T., Hassanein, O.E.S., Fahmy, O.I. et al. 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. Clin Oral Invest 28, 24 (2024). https://doi.org/10.1007/s00784-023-05434-z

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