Abstract Background: The maintenance of peri-implant health is critical for the long-term success of dental implants. This study aims to evaluate the oral hygiene habits and knowledge levels regarding peri-implant health and disease among dental implant patients. Materials and Methods: A cross-sectional observational study was conducted with a sample size of 150 dental implant patients. Data was collected using a structured questionnaire that assessed oral hygiene habits, knowledge of periimplant health, and the occurrence of peri-implant disease. Clinical examinations were performed to assess the peri-implant status using parameters such as plaque index (PI), bleeding on probing (BOP), and probing depth (PD). Results: The study revealed that 60% of the participants brushed their teeth twice daily, while 25% used interdental aids regularly. Knowledge about peri-implant health was found to be moderate, with 45% of participants correctly identifying key preventive measures. The prevalence of peri-implant mucositis was 30%, and peri-implantitis was observed in 15% of the sample. A significant association was found between poor oral hygiene habits and the occurrence of peri-implant disease (p < 0.05). Conclusion: The findings highlight the need for improved patient education regarding peri-implant care. Despite moderate knowledge levels, inadequate oral hygiene practices contribute to a high prevalence of peri-implant diseases. Targeted educational interventions are essential to enhance patient outcomes and ensure the longevity of dental implants.