SBI Sulcus-Bleeding-Index

Sulcus Bleeding Index by Muhlmann & Son¹

The sulcus-bleeding index is added to the gingiva indices and is used to assess the degree of development of gingiva. In combination with the collection of a plaque  index  (See Modified-approximal-plaque index ). it can be checked whether the patient is permanently performing good oral hygiene or only cleans his teeth before visiting the dentist.

Inflammation grade

1. Grade 0 normal-looking gingiva, no bleeding after probing
2. Grade 1 normal-looking gingiva, bleeding after probing
3. Grade 2 a little gingiva inflammation, bleeding after probing
4. Grade 3, such as Grade 2, additionally slight gingiva swelling
5. Grade 4, such as Grade 3, additionally severe gingiva swelling
6. Grade 5 such as grade4, additional spontaneous bleeding and possibly ulceration of gingiva

References

MUHLEMANN, H. R. & SON, S. Gingival bleeding-a leading symptom in initial gingivits. Helvetica odontologica acta, 15: 107- 113 (1971).