Higher oral disease rates are concentrated mostly in specific segments of the population and in them, chronic psychiatric patients have been documented in other countries for having poorer oral health than most other segments of the population Objective: Relationship of psychiatric disorders with cleaning habits, adverse habits, periodontal conditions and prosthetic status. Materials and Methods: A cross-sectional study with the simple random sampling of 700 psychiatric patients aged between 35-74 years attending the psychiatric outpatient department of two government hospitals ie. Patna Medical College and Hospital (PMCH) & Nalanda Medical College and Hospital (NMCH). Results: Among psychiatric patients, majority brush their teeth using the brush and paste and, clean their teeth once per day and had no adverse habits. Majority of sextants in psychiatric patients had CPI-2(calculus) score and LOA-1(4-5mm loss of attachment) score. When compared with the type of condition, the majority were from schizophrenia group and on medication and the association was statistically significant (p<0.001). Majority needed 1 unit prosthesis in maxillary arch and 2 unit prosthesis in mandibular arch, among which maximum was suffering from schizophrenia and association was statistically significant (p<0.001). Conclusion: An oral health care system must have three concurrent approaches to care: treatment of oral diseases, oral disease prevention, and oral health promotions In order to gain a deeper understanding of the research area, further investigations of oral health in psychiatric populations both hospitalized and in outpatient care is needed.
