Journal of AdvancedMedical and Dental Sciences Research

Introduction/ Objectives: There exists a large number of papers that are published in around 500 journals within dentistry. Most of these published papers are observational studies with fewer experimental studies. Main objective of the present article is to provide basic knowledge of  the study designs, qualitative and quantitative data, framing  questions for designing a research for different types of studies, sampling methods, bias that occur during conducting the research. Sources/data: We made a survey of two renowned orthodontic journals (American Journal of Orthodontics and Dentofacial Orthopedics, Angle of orthodontics) from January 2009 to October 2014 and found that most of the studies were observational (65.3%) and the rest were experimental studies (34.6%). Selection criteria: The original research articles from these journals were selected and categorized into observational and experimental studies. Case reports, clinician’s corners etc. have been excluded. Conclusion: In this article, information about the step-wise approach is provided regarding research methodology relevant to our clinical research.