Labels:sky OCR: VIETNAM MINISTRY HEALTH INSTITUTE OF ODONTO-STOMATOLOGY HEAD OF MAXILLO FACIAL DEPARTMENT DENTAL SCHOOL OF HO CHI MINH CITY 201A Nquyen Chi Thanh District 5 Ho Chi Minh City Phone: /++ 84/8/ 855 67 32 855 36 98 857 65 29 Telefax: / ++ 84/ 855 13 94 MAXILLC Nguyen Thank