Clinical evaluation of periodontitis types affected cumulative and annually radiographic periodontal alveolar bone loss using the treatment of Sandwich’s technique

Table 2.

The difference of mean ARPAL (mm/yr.) in differentperiodontal disease type of CP by disease severity.

CP Stage A    n  Mean (SD)  Stage B   n  Mean (SD)  Stage C   n  Mean (SD) Significance

Mild
Moderate
Severe
- 0.08 (0.03) 264
-0.15(0.04) 49
-0.26(0.09) 81
- 0.06 (0.14) 264
+0.02(0.16) 49
-0.06(0.47) 23
- 0.07 (0.03) 264
-0.12(0.04) 49
-0.19(0.05) 23
*
****
***
Significance      ****     ****     ****