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On the relationship between gingival morphotypes and different crown shape assessments in young Caucasians

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Abstract

Objectives

The objective of this study was to determine the relationship between crown length as well as crown width and gingival morphotypes (primary aim) and their correlation with tooth shape and papilla height (secondary aim).

Material and methods

Thirty-six adult subjects were evaluated in this clinical study according to their gingival morphotype (GM) defined by transparency of a periodontal probe through the buccal gingival margin. Eighteen subjects comprised the thin entity group and 18 the control group thick entity, respectively. Besides crown length (CL) and crown width (CW), two different methods to assess crown shape (CW/CL ratio) were compared and analysis of their relation to papilla height was performed.

Results

Nineteen female and 17 male volunteers were enrolled in this study, with a mean age of 24.9 years (±3.4; minimum 18, maximum 35). A statistical significant difference for the crown length could be detected between both groups (p < 0.05) but not for crown width. No significant difference was found for apical or coronal CW/CL ratio besides on tooth 22.

Conclusion

Within the limitations of this study and within this young Caucasian study population, only crown length seems to have an association with different gingival morphotypes. Furthermore, papilla height and crown shape do not have a clear correlation on tooth level.

Clinical relevance

Crown shape seems to be not a strong parameter in assessing the gingival morphotype.

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Authors and Affiliations

  1. Department of Periodontology, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-Straße 45, 58455, Witten, Germany

    Kai R. Fischer & Anton Friedmann

  2. Department of Periodontology, Julius-Maximilians-University, Wuerzburg, Germany

    Kai R. Fischer, Timo Richter & Stefan Fickl

Authors
  1. Kai R. Fischer
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  2. Timo Richter
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  3. Anton Friedmann
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  4. Stefan Fickl
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Corresponding author

Correspondence to Kai R. Fischer.

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Conflict of interest

The authors declare that they have no competing interests.

Funding

The study was solely self-funded by the authors’ institutions.

Ethical approval

The Julius-Maximilians-University’s Ethical Committee of the Medical Faculty approved the consent form and study protocol (236/12).

Informed consent

Each participant signed informed consent after thorough explanation of the nature, risks and benefit of this clinical investigation.

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Fischer, K.R., Richter, T., Friedmann, A. et al. On the relationship between gingival morphotypes and different crown shape assessments in young Caucasians. Clin Oral Invest 20, 2185–2190 (2016). https://doi.org/10.1007/s00784-016-1720-8

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  • DOI: https://doi.org/10.1007/s00784-016-1720-8

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