ABSTRACT
Our aim was to investigate bacteremia caused by surgical extraction of partly erupted mandibular third molars. From 16 young adults, bacterial samples were taken from the third-molar pericoronal pocket and post-operatively from the extraction socket, and blood samples were drawn from the ante-cubital vein up to 30 min after surgery. Of the subjects, 88% had detectable bacteremia-50% 1 min after the incision, 44% immediately after extraction. The respective percentages at 10, 15, and 30 min were 44%, 25%, and 13%. Blood cultures contained 31 species (74% anaerobes), with 3.9 +/- 2.6 species isolated per subject. Most prevalent were the anaerobes Prevotella, Eubacterium, and Peptostreptococcus sp. and the aerobes viridans-group streptococci and Streptococcus milleri group. Any species found in the blood was also isolated from the mouth, from 93% of the pericoronal pockets and from 43% of the extraction sockets. Surgical dental extraction clearly causes bacteremia of a high frequency and lasting longer than thus far assumed.
Subject(s)
Bacteremia/microbiology , Bacteria, Anaerobic/classification , Molar, Third/surgery , Tooth Extraction , Adult , Bacteroidaceae Infections/microbiology , Eubacterium/isolation & purification , Female , Gingival Pocket/microbiology , Gram-Positive Bacterial Infections/microbiology , Humans , Male , Molar, Third/microbiology , Peptostreptococcus/isolation & purification , Prevotella/isolation & purification , Streptococcal Infections/microbiology , Streptococcus milleri Group/isolation & purification , Time Factors , Tooth Extraction/adverse effects , Tooth Socket/microbiology , Viridans Streptococci/isolation & purificationABSTRACT
The records were analyzed of 106 patients with sports-related dental traumas treated in 1983 at the public oral surgery unit in Helsinki, Finland; 51 were examined six years after injury. The mean age was 11.8 years (range 7-24 years). The woman/man ratio was 1:3. In 39% of cases, the injuries had arisen from ice hockey or skating; 30% happened during school hours; 80% were uncomplicated crown fractures, concussions or subluxations. During the six-year follow-up, of 80 teeth in 51 patients, root resorption was found in 6 teeth (7.5%), periapical lesions were noted in 2 teeth (2.5%), and obliteration of the pulp was seen in 4 teeth (5%). Three teeth (3.7%) had suffered loss of vitality. The pulp had been extirpated in 13 of the traumatized teeth (16%). In all, 13.7% of the patients were found to have complications six years later. The results showed that long follow-up periods are needed after dental injury.
Subject(s)
Athletic Injuries/epidemiology , Tooth Avulsion/epidemiology , Tooth Fractures/epidemiology , Tooth Injuries , Adolescent , Adult , Age Factors , Child , Dental Pulp Necrosis/etiology , Female , Finland/epidemiology , Follow-Up Studies , Humans , Male , Retrospective Studies , Sex Factors , Tooth Avulsion/complications , Tooth Avulsion/etiology , Tooth Fractures/complications , Tooth Fractures/etiologyABSTRACT
Maxillary fibrosarcoma of a 31-year-old female is described with special reference to immunofluorescent characterization of the extracellular matrix. Following extractions, endodontic treatment and occlusal adjustment the tumour was operated on. The spindle-shaped tumour cells displayed a herring-bone pattern. The tumour was diagnosed as a fibrosarcoma and graded as poorly differentiated. Immunostaining for the specific type I collagen was positive throughout the tumour matrix, whereas staining for type III collagen was faint and occasional, and did not definitely codistribute with reticulin. Staining for type IV collagen and fibronectin in the tumour matrix was negative.
