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[SBI verus GI: a clinical study]
Insights
The Sulcus Bleeding Index (SBI) demonstrated greater sensitivity than the Gingival Index (GI) in detecting gingival inflammation in children. Specifically, SBI outperformed GI in identifying bleeding in papillary gingival units.
Area of Science:
- Periodontology
- Dental diagnostics
Background:
- Gingival health assessment relies on indices to quantify inflammation.
- The Gingival Index (GI) and Sulcus Bleeding Index (SBI) are commonly used diagnostic tools.
- Comparative sensitivity analysis is crucial for selecting optimal clinical assessment methods.
Purpose of the Study:
- To compare the diagnostic sensitivity of the Gingival Index (GI) and the Sulcus Bleeding Index (SBI).
- To evaluate the performance of GI and SBI in detecting early signs of gingival inflammation in children.
Main Methods:
- A comparative study involving 230 children aged 11-15 years (111 Swedish, 119 Swiss).
- Two independent investigators assessed 22 anterior gingival units per child using either GI or SBI.
- Statistical analysis, including the chi-squared test, was employed to compare index sensitivity across different gingival units.
Main Results:
- The Sulcus Bleeding Index (SBI) showed significantly higher sensitivity than the Gingival Index (GI) in 61.4% of comparisons.
- The GI was more sensitive in only 13.6% of cases, primarily for marginal gingival units.
- SBI demonstrated superior sensitivity for all papillary gingival units, irrespective of dental arch.
Conclusions:
- The Sulcus Bleeding Index (SBI) is a more sensitive indicator of gingival inflammation than the Gingival Index (GI) in pediatric populations.
- SBI's enhanced sensitivity, particularly for papillary regions, suggests its utility in early detection of periodontal disease.
- Clinical practice may benefit from prioritizing SBI for comprehensive gingival health evaluations in children.
Abstract:
The goal of the present study was to compare the sensitivity of the Gingival Index (GI) and the Sulcus Bleeding Index (SBI). The study was performed on 111 Swedish and 119 Swiss children, 11 to 15 years old. Two investigators examined 22 gingival units in the anterior region of each child, one using the GI and the other the SBI. The examinations were conducted separately. In order to test the sensitivity of the indices the index values for each gingival unit were divided into 2 groups: the first group included all values SBI = 0, GI > 0 and the second group all values GI = 0, SBI > 0 (all other relationships were ignored). These 2 groups were compared using the @chi-squared" test for each gingival unit. In 44 comparisons (2 groups of children X 22 gingival units) the SBI was significantly more sensitive than the GI 27 times (61.4%), the GI was more sensitive 6 times (13.6%) and in 11 comparisons (25%) no significant difference between the indices could be found. When the findings for gingival units in the maxilla and in the mandible were examined separately, the GI was more sensitive than the SBI 5 times in the maxilla (2 groups X 11 gingival units = 22 comparisons) and once in the mandible. These were in all cases marginal (M) gingival units. On the other hand, for all papillary units, whether in maxilla or mandible, the SBI was always significantly more sensitive.