Table 6.

Millers index of grading tooth mobility

Grade	Description
0	“Physiological” mobility measured at the crown level. The tooth is mobile within the alveolus to approximately 0.1-0.2mm in a horizontal direction
1	Increased mobility of the crown of the tooth to at the most 1 mm in a horizontal direction
2	Visually increased mobility of the crown of the tooth exceeding 1 mm in a horizontal direction
3	Severe mobility of the crown of the tooth in both horizontal and vertical directions impinging on the function of the tooth