Unerupted second primary mandibular molar positioned inferior to the second premolar: case report.

This report is a clinical case of a 7-year-old child who presented right impacted second primary mandibular molar. This tooth was positioned inferior to the second premolar successor and a supernumerary tooth superior to the second premolar. Clinical examination did not reveal systemic diseases ot trauma in the facial region. Treatment consisted of the extraction of the impacted second primary molar and the supernumerary tooth. Periodic examination was indicated for follow-up.

Complications in exodontia--accidental dislodgment to adjacent anatomical areas.

The authors report 4 cases of accidental dislodgement of teeth to adjacent anatomical areas during extraction. The causes and their prevention are discussed and solutions for the problem are suggested.

[Effect of antiseptic treatment of alveolar surgical wounds on bacterial growth on cotton suture threads]. / Efeito da anti-sepsia da ferida cirúrgica alveolar sobre o crescimento bacteriano em fios de sutura de algodão.

The objective of this study was to evaluate bacterial growth on cotton suture. The efficiency of cetylpyridinium chloride (50%), hydrogen peroxide (3%) and chlorhexidine (0.12%) in antisepsis was investigated. For that, 20 patients who were submitted to extraction of impacted lower third molars were studied. Five days after extraction, samples were obtained from the oral and alveolar sides of the sutures, before and after antisepsis of the wounds, and were submitted to bacteriological analysis. Bacterial growth was observed in all examined samples. The number of streptococci decreased after antisepsis and there were no statistically significant differences between the methods of antisepsis used.