Understanding the fundamental principles of tooth movement could reduce the duration of treatment and achieve a stable outcome, resulting in patient satisfaction. Hyperbaric oxygen therapy was a modality in which a patient inhaled 100% O2 while subjected to high atmospheric pressure. Hyperbaric oxygen therapy facilitated the supply of oxygen to the human body's organs and tissues and served a variety of applications, including patient care and wound treatment. This review article aimed to describe animal studies of the potential effects of hyperbaric oxygen therapy in orthodontic therapy. It was conducted using a systematic literature review method, including searching PubMed and Google Scholar for publications relevant to the research topics. The search was filtered to include only research on orthodontic treatment and hyperbaric oxygen therapy and was published in any year. Articles that did not specify biological components of orthodontic tooth movement (OTM) were excluded. The Preferred Reporting Items identified the papers for the Systematic Reviews and Meta-Analyses (PRISMA) strategy, which resulted in the selection of 11 publications. Hyperbaric oxygen therapy affected parameters of biomarkers representing the clinical, molecular, and cellular biology of bone formation and resorption in periodontal tissues in responding to orthodontic physical forces, including alkaline phosphatase, collagen synthesis, osteoblast, osteoclast, osteocyte, type I collagen, vascular endothelial growth factor, osteocalcin, fibroblast, matrix metalloproteinase-8, transforming growth factor-β, partial pressure of oxygen, partial pressure of carbon dioxide, trabecular bone density, and tooth mobility. Hyperbaric oxygen therapy induced an inflammatory response to follow OTM events during active orthodontic therapy. Hyperbaric oxygen therapy might play a role in the tissue healing process during passive treatment. Nonetheless, additional research should be conducted to establish the efficacy of hyperbaric oxygen therapy in orthodontics.

Background: Oral condition is one of substantial factors in general health. Good oral health will determine dental fitness or readiness in military troops. Oral diseases affecting soldiers may have negative impacts in readiness on deployment or fight and contributes to lowering morale among personnel. At the recruitment stage, the prevalence of periodontal disease is low and controlled before the commencement of the training. As a matter of fact, periodontal health was not considered to be maintained and found to be worsening through the course of time. In the end, many of soldiers were found to suffer from periodontal diseases. Method : This review article aims to discuss several factors in military way of life related to oral condition.Result : Lack of oral hygiene practices, stress, deficiency of nutritious food, and smoking among military personnel may contribute to the prevalence of periodontal disease. Several attempts should be incorporated in military life to reduce the negative impacts of these factors on oral health.Conclusion: Periodontal therapy should be provided early in the military careers and repeated at intervals specific to the needs of each personnel. Several risk factors contributing to the development and severity of periodontal disease should be assessed and overcome to arrest the progression of the disease.