The objective of the study was to review the effectiveness of oral health education using traditional and advanced modes on improving KAP and oral hygiene status among orphanage school children". Materials & methods - The evidence on children's oral hygiene behaviors and their related health impacts, therapies to improve these behaviors, conditions, outcomes, and impediments to improvement have been carefully reviewed. PubMed, Google Scholar, Scopus, Elsevier, science direct, Medline, Research Gate, and bibliographic databases were searched for the articles from (2011-2023). Clinical trials conducted among 5 to 16 years old children were included. The publications were grouped based on their outcome measures: (i) Knowledge, attitude & practice component (ii) plaque and gingival health (iii) DMFT. The quality assessment was done using Higgins and Green. Cochrane Reviewer’s Handbook 2009. Results: A total of 988 references were identified, among them, 350 references were identified by literature search using Boolean operators, and the relevance of each article was determined by examining the title and abstract components in detail. Finally, 17 articles were selected for qualitative synthesis. Conclusion: This review concluded that conventional oral health education methods were found to be less effective than advanced methods. These advanced methods reduced the plaque and gingival component & increase the knowledge, attitude, and practice component, of oral health-related practices among children.