Document Classification

Section Type: RESULTS

Text: For sites with PD4 mm at baseline, the sites treated with Er : YAG laser demonstrated mean PD change from (5. 61. 1) mm to (3. 61. 1) mm and to (3. 41. 0) mm at the end of 2 months and 4 months respectively and demonstrated mean AL change from (5. 11. 5) mm to (3. 91. 6) mm and to (3. 81. 7) mm at the end of 2 months and 4 months respectively, meanwhile the BI value showed significant decrease, P = 0. 000 ; the sites treated with conventional SRP demonstrated mean PD change from (5. 61. 1) mm to (3. 81. 1) mm and (3. 5 1. 0) mm at the end of 2 months and 4 months respectively and demonstrated mean AL change from (4. 81. 6) mm to (3. 81. 6) mm and (3. 61. 8) mm at the end of 2 months and 4 months respectively, and the BI value also showed significant improvement.