In dentistry, antibacterial drugs are indicated for pre-established infections, as well as for the prevention of bacteremia in the face of invasive procedures in patients with a systemic condition that allows the spread of these bacteria in the bloodstream. Therefore, the objective of the present study was to review in the scientific literature, the current concepts related to the prescription of antibacterials in dentistry. It is of utmost importance to create measures to correctly carry out the antibacterial prescription, in order to avoid an inappropriate prescription of these drugs. The improper use of these drugs causes damage to the patient's systemic health, contributing to bacterial resistance. The rational use of these drugs also encompasses the health professional's knowledge about the prescribed substance, and the user must correctly guide the user regarding the dosage and the intervals for using the drug. The training of the dental surgeon on the theoretical and practical knowledge of pharmacology must be constantly updated, since the prescription encompasses everything from the use of substances to the necessary information that must be contained.

The use of a biomodel allows for simulation and aids in team communication, can be used as prostheses, reduces surgical time, and is a reliable copy of bone tissue. Thus, this work aims to report a clinical case of using the biomodel in orthognathic surgery, in order to demonstrate the benefits obtained with the use of biomodels in surgical planning, such as reducing time, increasing predictability, pre-modeling of titanium plates used in bone fixations. Melanoderma patient, male, sought dental care, with dissatisfaction of facial aesthetics and difficulty in phonation, chewing and breathing. After a detailed physical examination and evaluation through imaging tests, Angle skeletal classification III was identified, with indication for surgical treatment. The trans-operative was simplified and faster due to the previous model of the plates and precision of adaptation of them in the bone surface. The use of biomodels and the previous modeling of fixation plates favored greater surgical precision, through the reduction of trans-operative morbidity and reduction of surgical time. Thus, it emphasizes that this type of approach can be an important ally in the treatment of correction of dento-facial deformities. Furthermore, the knowledge of these new tools enabled a better diagnosis and surgical precision.