II International Dental Meeting - UNICAMP and XI Dental Meeting of Piracicaba - 2004 All abstracts appear as submitted by the authors without editing 530 Braz J Oral Sci. 3(10) Abstracts - II International Dental Meeting - UNICAMP and XI Dental Meeting of Piracicaba - 2004 1. Evaluation of two periodontal techniques to remove 2. Necrotizing fasciitis of odontogenic origin impacted subgingival third molar. GOMES, P. P*; LUNA, A. H. B.; ALBERGARIA-BARBOSA, J. R.; CHAVES, A. J. P*; CHAVES, F. C. A. ; NOGUEIRA, P. S. V.; PASSERI, L. A. NASCIMENTO, L. R. ; COSTA, M. E. G. The management of odontogenic infections forms a significant This study compared the results of two types of flap used to remove component of the workload of oral and maxillofacial surgeons. These impacted lower third molar. Twenty patients were selected and divided infections often arise as well-localized lesions, which respond favorably into two groups: ten subjects were operated with a distal wedge flap to appropriate management. However, delayed or inappropriate (without relaxant) and the other ten with single flap (with relaxant). treatment may result in progression to a life-threatening illness. The Periodontal examinations consisting of measurements of gingival patients usually have sought treatment from general dental or medical sulcus depth in the faces: disto-buccal, buccal, mesio-buccal, practitioners prior to presentation. Unfortunately, common features distolingual, lingual, mesio-lingual and distal were done around of the treatment administered by them include reluctance to establish mandibular second molar adjacent to the tooth extracted, and maintain surgical drainage and an over-reliance upon antimicrobials preoperatively and ninety days after removal of impacted molar. as the primary mode of treatment. It is important that treatment Analyses of measurement indicated that there was no significant methods with proven efficacy be adopted when treating these potentially difference between the two flap techniques; therefore, the choice of serious conditions. Much of the reluctance to manage infections flap technique is one operator preference. There was a significant surgically can be attributed to a lack of appreciation of the surgical decrease in mean sulcus depth at some measured points for both flap anatomy of maxillofacial infections, and uncertainty regarding the techniques, indicating a healthier condition around mandibular second actual techniques of establishing drainage. One potential risk is the molars ninety days after the surgical removal of mandibular third necrotizing fasciitis (NF) that was first described in 1871. In 1952, the molars. term was coined for the necrotizing soft tissue infections in which the fascia is invariably involved. Necrotizing fasciitis is characterized by its devastating and rapid-progressing course. The purpose of this presentation is to review the literature and the cases treated on our service, and describe a NF case. 3. Expression of RANK during the alveolar wound healing 4. Plan of treatment for case of intrusion of incisors process. A immunohistochemical study. permanent superior central CLÁUDIO, C. C.*; ERVOLINO, E.; CASATTI, C.; RIZOLO, R. MURAKAWA, A. C.*; SBRANA, M. C.; SONODA, C. K.; POI, J. C.; OKAMOTO, T.; OKAMOTO, R. W. R; SOTTOVIA, A. D. From all of the proteins involved in the bone tissue dynamics, we The dental intrusion is a traumatism form characterized by the may consider Rank as a label of bone remodelation process, since this displacement of the tooth for the interior of the alveolus. The protein acts in osteoclastogenesis. The alveolar wound healing process diagnosis can be obtained by the unevenness of the incisal board involves events like bone neoformation and late bone remodelation between the committed tooth and the adjacent tooth, besides the and considering this, we performed this study with the aim to evaluate radiographic exam. It’s considered by provoking considerable damages to the periodontal ligament and alveolar bone. In that case, the the expression of RANK during the cronology of this process that is correct conduction of the treatment becomes important to favor the already well described in literature. For this study, we used 24 rats, repair. This paper has as objective the report of a clinical case, in that had the right upper incisive extracted. The animals were perfused which after the occurrence of dental traumatism, the patient observed with 4% paraformaldehyde at 7, 14, 21 and 28 pos operative days the absence of the elements 11 and 21. To the clinical and radiographic and the sections of the pieces were obtained in cryostat.The exam the total intrusion of both teeth was verified. The plan of immunohistochemistry reactions were performed using Rank antibody instituted treatment was the dental extruding, endodontic therapy, and dyaminobenzidine as a cromogen. The results showed the systemic antibioticoterapy and restoration of the fractured area. The expression of RANK in the cells present in the bone formed during repositioning of the teeth was gotten after 3 months with the use of the alveolar wound healing process. We also observed greater movable apparel. The endodontic therapy consisted of changes of expression of this protein at 7 and 14 pos operative days. We can hydroxide of calcium for the control of the radicular reabsorption. conclude from our results, that Rank is expressed in the bone cells The fractured area was recuperated with system it attacks acid and during the alveolar bone healing and that there are changes in the composed resin and previously, there was the need of a surgery for intensity of the label in the different periods that were studied. correction of the gingival contour. The result has been showing favorable Supported by FAPESP and CAPES and has demonstrated the importance of the correct conduction of the treatment plan, considerating the severity of the trauma. 5. Osseous repair after periapical surgery: a 13-month long 6. Removal of miniplates used in the treatment of oral and radiograph accompaniment. maxillofacial fractures: retrospective analysis of 5 years JACOB, V. P.*; MESSORA, M. R.; FURLANETO, F. A. C.; SILVA, CORTEZ, A. L. V.*; BRASILEIRO, B. F.; PASSERI, L. A.; MORAES, M. J. R.; MARIANO, R. C.; NAGATA, M. J. H. The use of miniplates and screws with internal rigid fixation for the Periapical surgery is a complicated proceeding wich is subordinated treatment of oral and maxillofacial fractures allows function during to some technique, anatomic and biologic interferences. To minimize osseous healing period, better oral hygiene, comfort and early return the factors that make difficult this kind of oral surgery, calcium to diary activities. To study the reasons for miniplates removal in all hydroxide is considerated an ideal material to decrease root of the patients who were attended by the Oral and Maxillofaciol resorption, playing bactericidal action on the residual microorganisms Surgeons from FOP-Unicamp. Retrospective analysis of the clinical and stimulating the hard tissue formation. We describe here a case of charts of the patients from april, 1999, to march, 2004. The data periapical surgery where was applied the Ca(OH)2 on the end reviewed related to gender, age, indication for using fixation, the resectioned root. R.A.S., 24 years old, appeared at EFOA/Ceufe surgery region, number of plates, necessity of removal and time until removal clinic with a periapical lesion wich involved elements 21 and 22, procedure. From 1892 charts of patients, there were 386 patients after passing for repeated endodontic treatments. Her mainly (335 men and 52 women) included. There were 549 maxillofacial complaint was a fistula in that area, with suppuration and pain by fractures with 850 miniplates used for surgical treatment. From the pression. Physique and radiographic examination were maden and total, 51 (6% of all miniplates) were removed (27 men and 7 women thus a periapical surgery was indicated. Elements 21 and 22 were – ratio 3.85:1, respectively). The miniplates removal occurred because submitted to an apicectomy and calcium hydroxide was applied. The of symptomatic (85.29%) and non-symptomatic reasons (14.71%). patient was attended with radiograph examinations along 13 months Miniplates removal may be necessary in short or long time, therefore and we observed a great radiolocence decrease with a satisfactory the need for careful post-operative follow-ups are indispensable. osseous repair. The technique was successful since we could’t note any clinical lesion either. 531 Braz J Oral Sci. 3(10) Abstracts - II International Dental Meeting - UNICAMP and XI Dental Meeting of Piracicaba - 2004 7. Midface advancement: report of a case 8. Clinical evaluation of the effectivity of the heterogenous organic bovine grafts associated with the bovine embryo bone morphogenetic SERRA, E. C. S.*; BARBEIRO, R. H.; ASSIS, A. F.; LANDGRAF, H; protein in maxillary sinus augmentation: histologic analysis KLUPPEL, L.; SCARTEZINI, G. R.; DANTAS, J. F. SERRA E SILVA, F. M.; PEREIRA, C. L.; MOREIRA, R. W. F.; Surgical treatment of patients with dentofacial deformities must take MAZZONETTO, R. in account data obtained from facial, cephalometric and dental casts analysis.When maxillary repositioning is necessary, Lefort I The sinus lift technique using autogenous bone promotes adequate bone formation osteotomy is the most used procedure, offering predictive and stable for the insertion of implants in the posterior maxilla, but the necessity of a results. However, depending on specific characteristics of the donor site causes more discomfort and morbitidy to the patient. Several bone deformity, others procedures are necessary in order to obtain an substitutes have been studied with the purpose of avoiding the necessity for a adequate cosmetic result. For those patients who present true midface harvesting site. The aim of the present study was to evaluate the clinical and hypoplasia association of others osteotomies of the fixed facial histological behavior of bovine grafts associated with the bone morphogenetic skeleton or the implantation of alloplastic material are reliable protein (Gen-Ox® + Gen-Pro®), when compared with autogenous grafts. options.