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Objectives <p>This study aimed to accurately assess the gingival phenotype by comparing the mean gingival thickness (GT) measured at various levels with a single-point GT measurement.</p> Materials and methods <p>Fifty participants were divided into thin and thick gingival phenotype groups according to two different classifications. The first classification was based on the GT measured at the base of the gingival sulcus (GT1), whereas the second classification was based on the mean of the GT (GTm) measured at the base of the gingival sulcus (GT1 point) and 1&#xa0;mm apical (GT2 point) and 2&#xa0;mm apical to the base of the gingival sulcus (GT3 point). The GT was measured using the transgingival method from the buccal region of 1195 teeth, including the incisors, canines, premolars, and first molars, and was statistically analyzed.</p> Results <p>The mean GT was 0.95 ± 0.25&#xa0;mm for GT1, 0.97 ± 0.3&#xa0;mm for GT2, 0.81 ± 0.22&#xa0;mm for GT3, and 0.91 ± 0.22&#xa0;mm for the overall GTm. Good agreement was found between the GTm and GT1 and GT2 (k = 0.712; k = 0.758, <i>p</i> &lt; 0.001for both), and moderate agreement was found between the GTm and GT3 (k = 0.534, <i>p</i> &lt; 0.001). In both classifications, the effect of the dental arch location on the GT was found to be statistically significant.</p> Conclusion <p>Standardized methods are required to minimize the differences in measurements from different vertical levels, which can influence gingival phenotype classification.</p> Clinical trial registration <p>ClinicalTrials.gov identifier: NCT06369506.</p> Clinical relevance <p>Multiple gingival thickness measurements showed that gingival phenotype varied depending on the vertical level of the gingiva measurement point. Gingival phenotype assessment based on the mean of multiple gingival thickness measurements provided precise results, emphasizing the clinical importance of multiple measurements.</p>

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Evaluation of gingival phenotype: the role of gingival thickness measurements from different vertical gingival levels

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月25日

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  • Sude Yildirim Bolat,
  • Muge Lutfioglu

摘要

Objectives

This study aimed to accurately assess the gingival phenotype by comparing the mean gingival thickness (GT) measured at various levels with a single-point GT measurement.

Materials and methods

Fifty participants were divided into thin and thick gingival phenotype groups according to two different classifications. The first classification was based on the GT measured at the base of the gingival sulcus (GT1), whereas the second classification was based on the mean of the GT (GTm) measured at the base of the gingival sulcus (GT1 point) and 1 mm apical (GT2 point) and 2 mm apical to the base of the gingival sulcus (GT3 point). The GT was measured using the transgingival method from the buccal region of 1195 teeth, including the incisors, canines, premolars, and first molars, and was statistically analyzed.

Results

The mean GT was 0.95 ± 0.25 mm for GT1, 0.97 ± 0.3 mm for GT2, 0.81 ± 0.22 mm for GT3, and 0.91 ± 0.22 mm for the overall GTm. Good agreement was found between the GTm and GT1 and GT2 (k = 0.712; k = 0.758, p < 0.001for both), and moderate agreement was found between the GTm and GT3 (k = 0.534, p < 0.001). In both classifications, the effect of the dental arch location on the GT was found to be statistically significant.

Conclusion

Standardized methods are required to minimize the differences in measurements from different vertical levels, which can influence gingival phenotype classification.

Clinical trial registration

ClinicalTrials.gov identifier: NCT06369506.

Clinical relevance

Multiple gingival thickness measurements showed that gingival phenotype varied depending on the vertical level of the gingiva measurement point. Gingival phenotype assessment based on the mean of multiple gingival thickness measurements provided precise results, emphasizing the clinical importance of multiple measurements.