OBJECTIVE: The aim of this controlled clinical trial was to evaluate the effect of topically applied povidone-iodine (PVP-I) used as an adjunct to non-surgical treatment of interproximal class II furcation involvements. MATERIAL AND METHODS: Thirty-two patients presenting at least one interproximal class II furcation involvement that bled on probing with probing pocket depth (PPD) >5 mm were recruited. Patients were randomly chosen to receive either subgingival instrumentation with an ultrasonic device using PVP-I (10%) as the cooling liquid (test group) or identical treatment using distilled water as the cooling liquid (control group). The following clinical outcomes were evaluated: visible plaque index, bleeding on probing (BOP), position of the gingival margin, relative attachment level (RAL), PPD and relative horizontal attachment level (RHAL). BAPNA (N-benzoyl-L-arginine-p-nitroanilide) testing was used to analyze trypsin-like activity in dental biofilm. All parameters were evaluated at baseline and 1, 3 and 6 months after non-surgical subgingival instrumentation. RESULTS: Six months after treatment, both groups had similar means of PPD reduction, RAL and RHAL gain (p>0.05). These variables were, respectively, 2.20±1.10 mm, 1.27±1.02 mm and 1.33±0.85 mm in the control group and 2.67±1.21 mm, 1.50±1.09 mm and 1.56±0.93 mm in the test group. No difference was observed between groups at none of the posttreatment periods, regarding the number of sites showing clinical attachment gain >2 mm. However, at 6 months posttreatment, the test group presented fewer sites with PPD >5 mm than the control group. Also at 6 months the test group had lower BAPNA values than control group. CONCLUSION: The use of PVP-I as an adjunct in the non-surgical treatment of interproximal class II furcation involvements provided limited additional clinical benefits.

OBJECTIVES: The aim of this study was to evaluate the influence of the crown shape on the outcomes of root coverage procedures. MATERIAL AND METHODS: Eighty patients with Miller class I gingival recessions in maxillary canines or premolars were selected. The recession areas were treated using the subepithelial connective tissue grafting. The following clinical parameters were analyzed: crown length (CL) and width (CW), recession height and width, probing depth, clinical attachment level, width and thickness of the keratinized tissue and percentage of root coverage achieved. These measurements were recorded at baseline and 6 months after the surgical procedure. The CW/CL ratio was calculated for each tooth and the median obtained (0.83). Patients were then ranked into two groups, according to the shape of the tooth with gingival recession: Group A - square crown shape (CW/CL values above 0.83) and Group B - long and narrow crown shape (CW/CL values below 0.83). RESULTS: No statistically significant differences (p>0.05) were found between groups in any of the clinical parameters at baseline. After 6 months, both groups presented improved clinical outcomes for all parameters analyzed compared to baseline (p>0.05). The mean percentages and standard deviations of root coverage achieved in Group A and Group B was 91.37 (16.75) and 85.49 (23.55), respectively (p>0.05). CONCLUSIONS: Crown shape did not influence the root coverage obtained with the subepithelial connective tissue graft technique.

O objetivo deste estudo foi avaliar o efeito do controle de placa supragengival sobre os parâmetros clínicos e bioquímicos da periodontite crônica. Foram selecionados 25 pacientes apresentando pelo menos 4 sítios com profundidade de sondagem > 5 mm, não fumantes e sem alterações sistêmicas relevantes. A avaliação clínica e bioquímica foi feita antes e 21 dias após a remoção dos fatores retentivos de placa, exodontia dos dentes condenados e instrução de higiene bucal. A análise estatística foi feita através do teste t de Student pareado (p<0,05) e demonstrou redução da porcentagem de sítios com sangramento à sondagem de 42,72 ± 15,83 para 35,87 ± 13,30 (p=0,002). Redução na profundidade de sondagem foi observada nos dentes anteriores (média inicial/final: 2,88 mm/2,78 mm; p=0,01) e faces interproximais (média inicial/final: 3,80 mm/3,65 mm; p=0,001). Houve aumento de 66,81% para 68,65% (p=0,03) no número de sítios com profundidade de sondagem de 1 a 3 mm e redução de 26,21% para 24,17% (p=0,04) nos de 4 a 6 mm. O valor do BAPNA apresentou redução de 51,44 ± 20,78 para 38,64 ± 12,34 (p=0,04). Baseado nesses achados pôde-se concluir que o controle de placa supragengival tem efeitos benéficos, principalmente relacionados à redução da inflamação gengival e da atividade de enzima tipo tripsina no biofilme subgengival (BAPNA).

Supragingival plaque control is a requisite for the success of any periodontal procedure. However, little is know about the effect of this procedure alone on periodontitis. The aim of this study was to determine the effect of supragingival plaque control on clinical and biochemical parameters of chronic periodontitis. Twenty-five subjects exhibiting at least 4 pockets > 5mm, non-smokers and with no relevant systemic diseases, were selected for the study. The clinical and biochemical assessments were done before and 21 days after removal of plaque retentive factors, extraction of affected teeth and instruction in oral hygiene. The statistical analysis was done with the Student paired t-test (p<0,05) and demonstrated a reduction on the percentage of sites with bleeding on probing from 42.72 ± 15.83 to 35.87 ± 13.30 (p=0.002). Reduction in probing depth was detected on anterior teeth (initial/final mean: 2.88 mm/2.78 mm; p=0.01) and interproximal sites (initial/final mean: 3.80 mm/3.65 mm; p=0.001). There was an increase from 66.81% to 68.65% in the number of sites with probing depth of 1 to 3mm and a decrease from 26.21% to 24.17% in those with probing depth of 4 to 6mm. The BAPNA results showed a decrease from 51.44 ± 20.78 to 38.64 ± 12.34 (p=0.04). This study demonstrated that supragingival plaque control provides a reduction in gingival inflammation and alterations in the subgingival microflora detected by the BAPNA test.

No atual contexto de uso crescente e precoce de drogas (fármacos recreacionais), legais ou não, a finalidade deste trabalho foi avaliar as condições de saúde bucal de 102 indivíduos, do sexo masculino, da instituição de recuperação Esquadrão da Vida, em Bauru - SP. O diagnóstico desta condição foi feito por meio da experiência de cárie (CPOD), placa bacteriana (PHP), índice gengival e teste de fluxo salivar. Objetivou-se também a implantação e verificação da eficácia de um programa educativo-preventivo. A idade média dos internos foi de 29,17 anos (dp = 11,40; n = 95). Dos internos (n = 102), 72,54% tinham o hábito de comer entre as refeições e 69,60% não utilizavam fio dental. O CPOD observado foi de 14,88 (dp = 6,38; n = 86) e, quando correlacionado à idade, obteve-se r = 0,55 (p < 0,001 - estatisticamente significante). O PHP inicial foi de 2,34 (dp = 0,69; n = 14) e, decorridos 3 meses, reduziu para 1,91 (dp = 0,74; n = 14). O fluxo salivar inicial foi de 1,31 ml/min (dp = 0,7; n = 97), sendo apenas 13 reavaliados após 3 meses, devido à flutuação deste grupo populacional, obtendo-se 1,13 ml/min (dp = 0,49). O índice gengival e o PHP iniciais apresentaram r = 0,30 (p = 0,002 - estatisticamente significante). A necessidade objetiva de tratamento verificada e a importância subjetiva conferida à saúde bucal apresentaram correlação negativa (r = -0,26; p = 0,019 - estatisticamente significante), indicando que a valorização da saúde bucal repercute sobre os cuidados em saúde e tem reflexos sobre o processo saúde-doença bucal.

Considering the current context of increasing and early utilization of licit or illicit drugs (habit-forming substances), the aim of this study was to evaluate the oral health conditions of 102 males from the Esquadrão da Vida rehabilitation center, in Bauru, São Paulo, Brazil. The evaluation was carried out by means of the assessment of caries experience (DMFT), dental plaque (PHP), gingival index and salivary flow. This study also aimed at instituting an educational-preventive program and evaluating its efficacy. The subjects’ mean age was 29.17 years (sd = 11.40; n = 95). From all subjects (n = 102), 72.54% had the habit of eating between meals, and 69.60% did not utilize dental floss. The observed DMFT was 14.88 (sd = 6.38; n = 86). The initial PHP was 2.34 (sd = 0.69; n = 14) and, after 3 months, it was reduced to 1.91 (sd = 0.74; n = 14). The initial salivary flow was 1.31 ml/min (sd = 0.7; n = 97). Due to the fluctuation of this group, only 13 of the original subjects were reevaluated after 3 months, when a salivary flow of 1.13 ml/min (sd = 0.49) was registered. The initial gingival index and PHP presented r = 0.30 (p = 0.002 - statistically significant). The objective need for treatment and the subjective importance given to oral health were negatively correlated (r = -0.26; p = 0.019 - statistically significant), which indicates that the value attributed to oral health influences health care and affects the oral health-sickness process.