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Soft and Hard Tissue Changes Subsequent to Spontaneous Healing of the Extraction Sockets Using Cone-Beam Computed Tomography: A Cross-Sectional Study

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Abstract

Objective

This study sought to compare the thickness of hard and soft tissues between edentulous and contralateral tooth sites.

Materials and Methods

This split-mouth study evaluated 153 partially edentulous patients. The measurements were made on cone-beam computed tomography (CBCT) scans. The soft tissue thickness was measured at the cementoenamel junctional (CEJ) level, and at 2, 4, and 6 mm apical to the CEJ in the facial and palatal aspects. The bone thickness of the opposite quadrant was also recorded at 2, 4, and 6 mm apical to the CEJ. The Mann–Whitney U test and the Spearman's rank correlation coefficient were applied for further statistical analyses.

Results

At the edentulous sites, significant soft tissue loss was noted at the CEJ level (p < 0.0001) and a considerable gain was noted at 2, 4, and 6 mm apical to the CEJ (p = 0.004, p < 0.0001, p ≤ 0.0001, respectively). A significant hard tissue loss was noted at 2 mm apical to the CEJ but a significant hard tissue gain was observed at the edentulous sites (p < 0.0001). The soft tissue gain at 6 mm apical to the CEJ was significantly associated with an increase in buccolingual diameter (p = 0.004) while the hard tissue loss at 2 mm apical to the CEJ was significantly correlated with a reduction in buccolingual diameter (p = 0.020)

Conclusion

Different amounts of tissue thickness alterations occurred in different levels of socket.

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Acknowledgements

Authors kindly appreciate Dr. Mahshid Namdari for statistical analysis of the data.

Funding

The present study did not receive any particular grant from commercial, public, or not-for-profit funding agencies.

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Authors and Affiliations

  1. Oral and Maxillofacial Radiology Department, Dental School, Shahid Beheshti University of Medical Sciences, Evin, Tehran, Iran

    Yaser Safi

  2. Dental Research Center, Shahid Beheshti University of Medical Sciences, Daneshjoo Blvd, Velenjak St, Chamran Highway, 1983963113, Evin, Tehran, Iran

    Behnoosh Behnam & Mahdi Kadkhodazadeh

  3. Periodontics Department, Dental School, Shahid Beheshti University of Medical Sciences, Evin, Tehran, Iran

    Reza Amid

Authors
  1. Yaser Safi
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  2. Behnoosh Behnam
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  3. Reza Amid
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  4. Mahdi Kadkhodazadeh
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Contributions

RA and YS involved in study design; BB participated in data collection; MN involved in data analysis; MK participated in manuscript preparation.

Corresponding author

Correspondence to Mahdi Kadkhodazadeh.

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Conflict of interest

The authors declare that they have no conflict of interest to this study.

Ethics approval

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (Ethics committee of the Dental School of Shahid Beheshti University of Medical Sciences, Iran (IR.SBMU.RIDS.REC.1395.400)). and with the Helsinki Declaration of 1975, as revised in 2008. Informed consent was obtained from all patients for being included in the study.

Informed consent

Written informed consent was obtained from all patients to use their diagnostic radiographs in this research. It was explained that their identifying information would only be accessible to the researchers and would not be included in the article.

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Safi, Y., Behnam, B., Amid, R. et al. Soft and Hard Tissue Changes Subsequent to Spontaneous Healing of the Extraction Sockets Using Cone-Beam Computed Tomography: A Cross-Sectional Study. J. Maxillofac. Oral Surg. 21, 1168–1174 (2022). https://doi.org/10.1007/s12663-021-01651-9

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  • DOI: https://doi.org/10.1007/s12663-021-01651-9

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