Abstract
BackgroundThe gingival thickness seems to have an important role in different dental treatments. There are different methods of quantifying this thickness, but it is not known which of them can be the most effective. The objective to assess the accuracy of two different methods for gingival thickness measurement: the transgingival needle probing (TGNP) and the tension-free caliper (TFC) in an in vitro model, by comparing them with direct physical measurements (reference standard).Material and MethodsGingival thickness (GT) was evaluated in 27 female pigs with four implant sites 1, 2 and 3mm from the gingival margin with three different methods: 1) transgingival needle probing 2) tension-free caliper and 3) Direct visualization after making a incision in the mucosa and measuring GT with a periodontal probe. Wilcoxon test for paired samples were used with a confident level of 95%.ResultsA total of 324 points were measured, 59% of the sites presented a thin biotype with DV, it was correctly assessed with the TGNP in 84% of the times and in 86% with the TFC. 41% of the sample presented thick biotype, 76% was the percentage measured with the TGNP and 0% of the sites evaluated with TFC resulted in this biotype.ConclusionsTransgingival needle probing constitutes an accurate method when measuring GT at different levels. Tension free caliper is not a good tool for assessing the gingival biotype as long as it is unable to predict thick biotype. Key words:Periodontal Biotype, Gingival Thickness, Periodontal Tissue and Diagnosis.
Highlights
Scientific interest has focused to determine the influence of gingival biotypes on dental treatments
A total of twelve measurements per specimen were made at 1mm, 2 and 3mm apical to the central aspect of the periimplant margin of each implant, where soft tissue mean thicknesses obtained with the reference standard (DV) were 1.15±0.49 mm, 1.42±0.65 mm and 1.54±0.76 mm respectively. -Test Results
TGNP using an injection needle or an endodontic tool with a silicone limiter seems to be accepted as an accurate method despite it has not been scientifically validated for that purpose [13,34,35]
Summary
Scientific interest has focused to determine the influence of gingival biotypes on dental treatments. This lack of accuracy, described as the amount of agreement between the information from the test under evaluation and the reference standard, in the methods and indices to evaluate the soft tissues make difficult to establish a definition of the gingival esthetic parameters in relation to successful implant restorations[10] This in vitro study has the outcome to assess the accuracy of two different methods for gingival thickness measurement: the transgingival needle probing and the tension free-caliper in an in vitro model, by comparing them with direct physical measurements (reference standard). The objective to assess the accuracy of two different methods for gingival thickness measurement: the transgingival needle probing (TGNP) and the tension-free caliper (TFC) in an in vitro model, by comparing them with direct physical measurements (reference standard). Tension free caliper is not a good tool for assessing the gingival biotype as long as it is unable to predict thick biotype
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