Basic and patient-oriented researchTreatment of Delayed-Onset Infections After Impacted Lower Third Molar Extraction
Section snippets
Patients and Methods
A retrospective study was made of 33 delayed-onset infections that had occurred after impacted lower third molar extractions done between 2001 and 2005 in the Oral Surgery and Implantology Department of the School of Dentistry of the University of Barcelona, Spain. The inclusion criterion was an inflammatory swelling of the operated area accompanied by pain or the presence of suppuration that began at any time subsequent to suture removal 1 week postoperatively.
All patients had 1 lower third
Results
The mean age of the patients was 26.3 ± 8.9 years (SD). Twenty-two were females and 11 were males. The median time elapsed from extraction to the delayed-onset infection was 29 days (range, 11 to 210 days) (Fig 1). The duration of postinfection antibiotic treatment ranged from 4 to 28 days (median = 7 days) (Table 1). Twenty-two of the 33 infections resolved with antibiotics alone (Table 1). Nineteen of 22 patients were managed with a single antibiotic (amoxicillin-3, amoxicillin plus
Discussion
Several reports have established the main features of delayed-onset infections.10, 11, 12, 15 Some large sample studies report that 1.5% of lower third molar extractions develop this complication.10, 11, 15 A recent case-controlled study in our department concluded that total soft tissue coverage, a lack of distal space, and a vertical or mesioangular tilt are significant risk factors for the development of delayed-onset infections.13 Furthermore, it also identified an important relationship to
Acknowledgment
The authors thank Maria Eugenia De-Castro-Avellaner, DDS, for help in the data sampling.
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