RESUMO
AIM: To examine microbiological and immunological alterations following two periodontal surgical techniques, over a 6-month period. MATERIALS AND METHODS: A total of 30 chronic periodontitis patients participated in the present randomized controlled clinical trial and were randomized in two groups. Modified Widman flap (MWF) was applied in the control group and apically positioned flap (APF), without intervention to the bone, in the experimental group. Gingival crevicular fluid samples and subgingival plaque samples from the operated sites were collected at baseline, 6th, 12th and 24th post-operative week. RESULTS: No major differences were noticed in immunological and microbiological profile of patients receiving either modified MWF or APF, for a period of 6 months. CONCLUSIONS: The choice of the periodontal surgical procedure does not seem to affect the immunological and the microbiological profile of patients with chronic periodontitis.
Assuntos
Periodontite Crônica/cirurgia , Placa Dentária/microbiologia , Líquido do Sulco Gengival/imunologia , Retalhos Cirúrgicos/cirurgia , Actinomyces/isolamento & purificação , Adulto , Idoso , Bacteroides/isolamento & purificação , Periodontite Crônica/imunologia , Periodontite Crônica/microbiologia , Placa Dentária/imunologia , Índice de Placa Dentária , Raspagem Dentária/métodos , Feminino , Seguimentos , Líquido do Sulco Gengival/microbiologia , Humanos , Interleucina-10/análise , Interleucina-1beta/análise , Interleucina-4/análise , Interleucina-6/análise , Interleucina-8/análise , Masculino , Pessoa de Meia-Idade , Índice Periodontal , Porphyromonas gingivalis/isolamento & purificação , Estudos Prospectivos , Aplainamento Radicular/métodos , Streptococcus mitis/isolamento & purificação , Retalhos Cirúrgicos/classificação , Treponema denticola/isolamento & purificação , Fator de Necrose Tumoral alfa/análiseRESUMO
AIM: To radiographically assess, by means of digital subtraction radiography, crestal bone loss following two periodontal surgical techniques, over a period of 6 months. MATERIAL AND METHODS: A total of 30 chronic periodontitis patients participated in this randomized controlled clinical trial and were separated into two groups. Modified Widman flap was applied in the control group and apically positioned flap, without intervention to the bone, in the experimental group. Clinical measurements (plaque index, gingival bleeding index, probing pocket depth and clinical attachment level) were recorded at baseline, 6 weeks, 3 and 6 months after surgery. Digital radiographs were taken at baseline, 1, 3, 6 weeks, 3 and 6 months after surgical treatment and subtracted digitally in pairs. RESULTS: Both groups showed statistically significant improvement of clinical parameters. Statistically significant differences between the two groups were observed only in probing pocket depth (PPD) at 6 weeks interval, where the test group showed more reduction (smallest statistically significant differences observed, SSSDO = 0.64). Both groups showed the same rate of crestal bone resorption. CONCLUSIONS: Bone resorption of the alveolar crest is a phenomenon that is observed as a consequence of periodontal surgical treatment without significant differences between the two techniques. Furthermore, both surgical techniques lead to satisfactory clinical results, indicating that bone removal during periodontal surgical treatment is not always necessary.
