Recent scientific studies have shown how interaction with an animal can alleviate particular conditions of stress and conflict, thus representing a solid support for minor patients with social behavior problems or with physical or mental disabilities. In this co-therapy, a fundamental role is played by the relationship that is established between the human being and the animal, a very particular relationship capable of bringing about positive changes, in both members, but especially in the man who, benefiting from this push for change, can improve his own situation, whatever it is, and follow with greater interest and involvement the actual therapy activities proposed by the team that is following him.

Inclusion Criteria:

• Patients had to be between 5 and 16 years old;
• Patients with disability;
• Non-collaborating or with limited collaboration (Frankl Scale 1 or 2);
• Patients with a Plaque Control Record (PCR) of 40% or more;
• Patients with partial autonomy in home oral hygiene procedures.

Exclusion Criteria:

• Patients with fear of dogs;
• Patients with dog hair allergy;
• Patients with infectious disease;
• Tetraplegic and visually impaired subjects.