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Comparative in vitro study of two methods for gingival biotype assessment
Leticia Sala1, Raquel Alonso-Pérez2, Ruben Agustin-Panadero3
1Professor, Department of Periodontology, School of Dentistry, Mississippi Institution of Madrid. Spain.
Journal of Clinical and Experimental Dentistry
|November 3, 2018
Summary
Transgingival needle probing accurately measures gingival thickness, unlike the tension-free caliper which struggles with thick biotypes. This finding is crucial for effective periodontal diagnosis and treatment planning.
Area of Science:
- Periodontology
- Dental Implantology
Background:
- Gingival thickness is critical for various dental treatments.
- Accurate measurement methods for gingival thickness are essential but not well-established.
- The study compares two methods against a direct measurement standard.
Purpose of the Study:
- To assess the accuracy of transgingival needle probing (TGNP) and tension-free caliper (TFC) for measuring gingival thickness.
- To compare these methods against direct physical measurements in an in vitro model.
Main Methods:
- Gingival thickness was measured in 27 female pigs at implant sites using TGNP, TFC, and direct visualization after mucosal incision.
- Statistical analysis involved Wilcoxon test for paired samples with a 95% confidence level.
Main Results:
- Of 324 measured points, 59% had a thin biotype, correctly identified by TGNP (84%) and TFC (86%).
- 41% had a thick biotype; TGNP identified this in 76% of cases, while TFC identified it in 0%.
Conclusions:
- Transgingival needle probing is an accurate method for measuring gingival thickness at various levels.
- The tension-free caliper is not suitable for assessing gingival biotype, particularly thick biotypes.
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