Bad Breath has direct relation with periodontitis?

The answer is positive. The bad breath is a major cause of periodontitis. The bad breath, due to poor oral hygiene, smoking, in eating habits in teeth with caries, in general disorders (diabetes, gastrointestinal diseases, etc.), sinusitis, tonsillitis, etc.
The final solution to the problem of bad breath, can only give the dentist to identify and eliminate the cause of occurrence of bad breath