Analysis of factors associated with the success of microimplant-assisted rapid palatal expansion.

INTRODUCTION: Success-related factors of microimplant-assisted rapid palatal expansion (MARPE) were evaluated, including age, palatal depth, suture, and parassutural bone thickness, suture density and maturation, and the relation to corticopuncture (CP) technique, as well as skeletal and dental effects. METHODS: Sixty-six cone-beam computed tomography scans were analyzed before and after rapid maxillary expansion procedures in 33 patients aged 18-52 years for both sexes. The scans were generated in digital imaging and communications in medicine file format and analyzed in the multiplanar reconstruction of the regions of interest. Palatal depth, suture thickness, density and maturation, age, and CP were assessed. To evaluate dental and skeletal effects, the sample was divided into 4 groups: successful MARPE (SM), SM + CP technique (SMCP), failure MARPE (FM), and FM + CP (FMCP). RESULTS: Successful groups presented more skeletal expansion and dental tipping than failure groups (P <0.05). The mean age of the FMCP group was significantly higher than the SM groups; suture and parassutural thickness significantly related to the success, and patients who received CP showed a success rate of 81.2% compared with 33.3% in the no CP group (P <0.05). Suture density and palatal depth did not show a difference between the success and failure groups. Suture maturation was higher in SMCP and FM groups (P <0.05). CONCLUSIONS: Older age, thin palatal bone, and higher stage of maturation can influence the success of MARPE. CP technique in these patients appears to have a positive impact, increasing the chance of treatment success.

Avaliacão do uso da amoxicilina em, diferentes períodos no tratamento de abscessos dentoalveolares / Evaluation ot use of amoxicillin in different periods for the treatment of dentaolveolar abscess

O objetivo foi avaliar a eficácia da amoxicilina em diferentes periodos (3 e 7 dias) no tratamento coadjuvante de abscessos dentoalveolares após realização de drenagem. Foram avaliados 20 voluntários divididos em 2 grupos (n=10): G1 - 19 de amoxicilina, antes do procedimento de drenagem e 500mg de 8/8h por 3 dias; G2 - 1 9 de amoxicilina antes do procedimento e 500mg de 8/8h por 7 dias. Foram avaliados o edema, dor, febre, supuração e trismo, e os voluntários tiveram acompanhamento clínico diário. O edema foi avaliado em duas medidas (Tragus a Asa do Nariz e Tragus a Comissura Labial). A abertura bucal e o edema foram avaliados antes da drenagem, 1, 2, 3 e 7 dias após. Para a avaliação de dor foi utilizada a escala analógica visual (EAV) antes e nos intervalos O, 1 h, 2h, 4h, 12h, 1 dia, 2 dias, 3 dias e 1 semana após. Os resultados fora m su bmetidos à a ná I ise estatística (Kruska II-Wa II is), com n ivel de sig n ificâ ncia de 5%. Quanto aos parâmetros clínicos avaliados, não foram observadas diferenças estatisticamente significantes entre os grupos [p>0,05), e nenhum dos voluntários apresentou complicações no período do pós-atendimento. Concluiu-se que, após a intervenção clínica, a eficácia da amoxicilina nos períodos avaliados foi similar na amostra avaliada

The aim of this study was to compare the use of amoxicillin for different time intervals (3 and 7 days) for treatment of acute dentoalveolar abscesses after performing drainage. Twenty volunteers were divided into two groups (n = 10): G 1 - The volunteers received 1 9 of amoxicillin before the drainage procedure, and 500mg of amoxicillin every 8 hours for 3 days; G2 - The volunteers received 19 of amoxicillin before the drainage procedure, and 500mg of amoxicillin every 8 hours for 7 days. For each patient followed-up, acute infectious conditions were investigated, and pain, edema, fever, suppuration and trismus were evaluated. To evaluate pain was used a visual analog scale [VAS) in the intervals O, 1 h, 2h , 4h , 12 h , 1,2 and 3 days and 1 week after the drainage. The results were submmited to statistical analysis [Kruskal - Wallisl. with a significance levei of 5 %. There was no statistically significant difference between the groups considering the parameters evaluated [p>0.05). None of the volunteers had complications in the post clinical care assessed. It was concluded that after clinical intervention, the effectiveness of the use of amoxicillin in periods of 3 and 7 days was similar in the evaluated volunteers