Alveolar osteitis (AO) is an unpleasant experience for a patient and for a dentist. Therefore, the dentist needs to find a way to prevent this complication. This study aims to evaluate if artificial collagen dressings reduce the incidence of AO. Two hundred and eight-seven extractions were carried out by visiting staff over two and a half years. The sockets were treated with collagen dressings immediately after the extractions. The incidence rate of AO was 0.7%. The risk factors of AO were examined statistically. No correlation was observed between age, gender, smoking, diabetes mellitus, indication, or location of extraction and the incidence of AO. This study found that collagen dressings had clinical benefits in reducing AO.