As stated by The Cochrane Collaboration on their website, the practice of evidence-based medicine means integrating individual clinical expertise with the best available external clinical evidence from systematic research. Understanding Periodontal Research fills a significant gap in the literature by providing oral health and periodontal researchers with a comprehensive overview of the methodological aspects that are important when planning, conducting, and analyzing their research projects. It is designed to be easy to understand for beginners in the field, yet will also serve as a useful tool for those who are more experienced. Undergraduate and postgraduate dental students, dental hygienists, dental practitioners, and associated professionals who are interested in understanding the principles of periodontal research will all benefit from the clear information and guidance contained in this book.