Completing this dissertation and my graduate degree could not have been accomplished without the many who were involved in the process of writing this dissertation. I would like to first and foremost acknowledge my Major Professor, Elena Bastida, to whom I am eternally grateful. Dr. Bastida devoted countless hours of constructive support, feedback, mentorship, knowledge and assistance. Dr. Bastida also displayed a limitless patience in editing and shaping this dissertation. I would like to express my gratitude to Dr. Bastida for her encouragement to fulfill my passion for oral health and for inspiring my interest in mixed-methods. I would also like to thank the rest of my committee for all their help and encouragement. Each of them was helpful in providing guidance and assistance during this dissertation process. I wish to thank Dr. Jesus Sanchez for being instrumental in encouraging me to pursue and continue my doctoral studies. He also provided valuable advice, ideas, suggestions and a tremendous statistical expertise that helped and supported me in accomplishing this work. I would also like to acknowledge Dr. Virginia McCoy and Dr. Jessy Dévieux for all their support, enthusiasm and for their commitment to promoting health in underserved populations. I would also like to express my gratitude to Dr. Mario De la Rosa and the Center for Research on Latino AIDS/HIV and Drug Abuse (CRUSADA) for their contribution to this dissertation. Also, I gratefully acknowledge Dr. Ana Karina Mascarenhas for taking time from her busy schedule and contributing her expertise to this project, to Dr. Oscar Arevalo for his willingness to share his professional knowledge and to Fitz Smith for all his time and help during all these years. vi I would like to thank the farmworker community in South Florida and, more specifically, those who agreed to participate in the study. Without their contribution, this study would not have been possible. Last but not least, I would like to thank my parents for always encouraging me to do my best and for their unconditional love and support. vii