Analysis of causes of tooth extraction postoperative bleeding

Abstract

Objective To explore the causes of bleeding after tooth extraction,and provide clinical preventive interventions for the occurrence of bleeding after tooth extraction.Methods 120 cases of bleeding after tooth extraction patients were selected as research subjects,their clinical data were retrospectively analyzed.Results The location of bleeding after tooth extraction analysis were as following:bleeding mandibular molar proportion of 46.7％ ;maxillary molar tooth bleeding proportion of 36.6％ ; anterior mandibular molar tooth bleeding after the proportion 6.7 ％ ;maxillary premolar bleeding proportion was 5.8％ ;the anterior mandible proportion of 2.5 ％ ;the anterior maxilla proportion 1.7％ ;extraction postoperative bleeding time more concentrated within 8 hours after surgery,65.0％ ;occur 15.8％ in the proportion of 8 to 12 hours after surgery;14.2％ in the proportion of 13 to 24 hours after surgery;bleeding time of over 24 hours compared to 5.0％ ;retrospective analysis found the cause of the bleeding,gingival the tissue tearing lead to bleeding the proportion of 41.7％ ; extraction sockets tissue residues cause bleeding ratio of 15.0％ ;sutures become loose resulting in bleeding was 4.2％ ;alveolar bone fracture cause bleeding ratio of 13.3％ ;tooth fossa vascular ruptured bleeding ratio of 9.2％.Conclusion After tooth extraction bleeding occurred within 8h after surgery,to mandibular teeth bit bleeding is the most common,cause more bleeding after tooth extraction,strictly regulate the operation for bleeding has an important role in the prevention of tooth extraction. Key words: Tooth extraction; Gingival hemorrhage; Factor analysis, statistical