Postoperative Infections

The goal of this observational study is to learn how to better predict and prevent intra- and postoperative complications in oral surgery in adult patients referred for oral surgical procedures. The study aims to understand how accurately surgeons can foresee complications and which patient, tooth, and surgery related factors influence the outcomes. The research questions are: * What is the incidence of intra and postoperative complications in oral surgery? * Which factors predict these complications, and how accurately can surgeons anticipate them? * Can the development of an AI tool reduce postoperative complications? Participants will: * Receive standard oral surgery treatment at a private referral clinic (Specialtandlægerne Sjælland). * Have clinical information collected about their procedure, medical history, and personal characteristics (including anxiety level). * Conduct a short questionnaire, the STAI-6 and the I-PANAS-SF. * Have the surgeon record their prediction of whether complications are expected. * Be followed in the postoperative lapse to document whether complications occur after surgery.

Our aim is to evaluate chlorhexidine-hyaluronic acid containing gel on postoperative wound healing regarding impacted lower third molar surgery.

The aim of this trial is to test whether postoperative antibiotics targeted towards bacteria in the urine can reduce the risk of infection after surgical removal of the bladder (cystectomy) compared to a standardised antibiotic prophylaxis. Participants undergoing cystectomy will be randomly assigned to postoperatively receive (A) a standardised orally administered antibiotic prophylaxis currently given at Rigshospitalet, Copenhagen or (B) a conventional orally administered antibiotic prophylaxis targeting bacteria found in the urine postoperatively. The investigators' hypothesis is that the targeted prophylactic antibiotic strategy will reduce the number of infection-related readmissions within 90 days of surgery compared to the standardised prophylaxis.