Gingival Index of Loe and Silness | Medicalalgorithms.com

The Gingival Index (GI) was developed by Loe and Silness to describe the clinical severity of gingival inflammation as well as its location.

Appearance	Bleeding	Inflammation	Points
normal	no bleeding	none	0
slight change in color and mild edema with slight change in texture	no bleeding	mild	1
redness, hypertrophy, edema and glazing	bleeding on probing/pressure	moderate	2
marked redness, hypertrophy, edema, ulceration	spontaneous bleeding	severe	3

Teeth examined:

(1) maxillary right first molar

(2) maxillary right lateral incisor

(3) maxillary left first bicuspid

(4) mandibular left first molar

(5) mandibular left lateral incisor

(6) mandibular right first bicuspid

Surfaces examined on each tooth:

(1) buccal

(2) lingual

(3) mesial

(4) distal

Gingival Index for a specific tooth =

= AVERAGE (points for the 4 surfaces)

Gingival Index for type of tooth (first molar, first bicuspid, lateral incisor) =

= AVERAGE (Gingival Indices for the 2 teeth)

gingival index for patient =

= AVERAGE (Gingival Indices for all 6 teeth)

Limitations:

• Several subsequent modifications were made to better describe milder forms of inflammation or to eliminate the need to perform probing.

To read more or access our algorithms and calculators, please log in or register.