MCOH group (n=32) . The baseline assessments included periodontal status, PCR, GBI (describe the achronym) and a systematic questionnaire on lifestyle factors (smoking, alcohol, food, exercise, sleep, and stress). The intervention group received tailored MCOH sessions that comprised goal-setting, emotional hurdle assessment and action planning, whereas the control group received conventional OHI.

Control group (n=32.)Control group received traditional OHI using the tell-show-do method, which was personalized based on the individual PCR and GBI. The recommendations were tailored to each participant, based on personalized instructions to improve plaque control, decrease of gingival inflammation and facilitate optimal patient compliance, contributing to oral hygiene performance.

The control group received traditional OHI using the tell-show-do method, which was personalized based on the individual PCR and GBI. The recommendations were tailored to each participant, based on personalized instructions to improve plaque control, decrease of gingival inflammation and facilitate optimal patient compliance, contributing to oral hygiene performance.

The intervention group was actively engaged in an iterative, collaborative process, based on the following steps:

Definition of the goals of oral hygiene and lifestyle styles according to the SMART model (Specific, Measurable, Achievable, Realistic, Timely):

The percentage value was calculated as follows: Number of surfaces with plaque / Total number of surfaces examined × 100. The lower the percentage, the better the plaque control; the higher the percentage, the worse the oral hygiene.

The calculation to the GBI was as follows: number of bleeding sites/number of evaluated sites ×100. obtain the percentage value was as follows: number of bleeding sites/number of evaluated sites ×100