Dental practitioners have traditionally neglected halitosis despite its high priority for the public, but practitioners' interest in halitosis has recently increased. Although oral pathologic or physiologic halitosis is easily reduced by a suitable treatment based on the treatment needs, systemic and psychological conditions sometimes confuse practitioners. Since a halitophobic patient never agrees with the result that his/her oral malodour has been reduced or eliminated after treatment, this may cause a dilemma for practitioners. Generally, halitosis patients, even genuine ones, have different psychological characteristics concerning their own breath than other individuals. Adverse psychological aspects of these patients are often promoted by the practitioner's mismanagement. Treatment Needs (TN) were, therefore, established to prevent practitioners' mismanagement of halitosis patients. By following these TN, patients can receive proper treatments for halitosis. However, to choose proper treatment measures, practitioners must refer to articles published in peer-reviewed journals, then use critical thinking to judge whether a product is effective in reducing oral malodour. Although it is challenging for dental practitioners to deal with patients with psychological conditions such as pseudo-halitosis or halitophobia, if appropriate treatments are administered accurately the practitioner does not risk mismanagement.