**2. Methodology**

The chapter was prepared by conducting a thorough review of the existing literature on potentially malignant disorders in the oral and maxillofacial region from the reputable scientific databases, including PubMed, Scopus, ScienceDirect, Google Scholar, and Cochrane using Boolean operators. The article search was carried out using relevant keywords. The inclusion criteria for preparing this chapter were articles about genetic aspects of OPMDs published online, articles in English, and articles with

### *Genetic Revelation of the Potentially Malignant Disorders in the Oral and Maxillofacial… DOI: http://dx.doi.org/10.5772/intechopen.112697*

both experimental and observational research. Incomplete and inaccessible articles were excluded. Data retrieval began with selecting and determining literature that was relevant to the objectives and met the inclusion criteria. Next, literature that met the inclusion criteria was extracted. Data extracted from each piece of literature included author, year of publication, title, and journal name. Studies that specifically examined the genetic aspects of these disorders were carefully selected. Through a critical analysis of the chosen studies, the information was synthesized to provide a cohesive and informative overview of the genetic revelation of potentially malignant disorders in the oral and maxillofacial region. The methodology implemented here ensured the inclusion of proper references and allowed peers to reproduce the experiments and obtain consistent outcomes.
