Postoperative pain and edema control following different protocols of preemptive analgesia in the surgical removal of impacted third molars: A triple-blind parallel randomized placebo-controlled clinical trial.

This randomized controlled clinical trial aimed to evaluate the preemptive effects of acetaminophen, ibuprofen, ketoprofen, nimesulide or dexamethasone on postoperative pain and edema in the surgical removal of impacted third molars. Participants underwent bilateral surgeries at 2 different times and were randomly given the test drug or placebo (split-mouth). Postoperative pain, edema and rescue medication were evaluated at different times. Study power was >80% for the observed effect size in the crossover repeated measures design. Differences between test drug and placebo were the response variable. Generalized Estimation Equation models were adjusted for each outcome. Sample comprised 5 groups (n = 20 each). Ibuprofen and nimesulide showed higher overall effects on pain scores over time, with no differences between them (p = 0.557). Acetaminophen showed significantly lower overall effects in edema control over time, when compared to other test drugs, that showed similar effects. Lower quantity of rescue medication were also observed for ibuprofen and nimesulide, with no differences between them (p = 0.999). Ibuprofen and nimesulide showed beneficial overall preemptive effects. Hence, in the decision-making process for preemptive analgesia in impacted third molar surgeries, ibuprofen and nimesulide should be considered on a case-by-case basis as the drugs of choice.

Avaliação da eficácia de diferentes protocolos de analgesia preemptiva em cirurgias odontológicas / Evaluation of the effectiveness of different preemptive analgesia protocols in dental surgery

A analgesia preemptiva tem como princípio a administração de fármacos antes do início dos estímulos dolorosos, a fim de reduzir ou prevenir a dor pós-operatória. Apesar da sua importância, os efeitos da analgesia preemptiva em cirurgias odontológicas reportados na literatura ainda são conflitantes. Assim, o objetivo deste estudo foi avaliar a eficácia clínica de diferentes classes de medicamentos para analgesia preemptiva, em 2 propostas de investigação 1) cirurgias para exodontia de terceiros molares impactados; 2) cirurgias periodontais a retalho. Para tal, foram realizados ensaios clínicos randomizados placebo-controlados onde os participantes recebiam, 1 hora antes da cirurgia, o medicamento teste e o placebo em cirurgias distintas, em um desenho boca-dividida. Na primeira proposta de investigação, de um total de 376 pacientes com necessidade de exodontia de terceiros molares inferiores classe IIB, foram selecionados 100 pacientes, com idade entre 18 - 30 anos (22,4±2,9), alocados em 5 grupos (n = 20 por grupo), sendo: 1) paracetamol; 2) cetoprofeno; 3) ibuprofeno; 4) nimesulida; 5) dexametasona). Através de escala visual analógica, dor pós-operatória foi avaliada nos tempos 1h, 6h, 12h, 24h, 48h e 72h e edema foi avaliado nos tempos baseline, 24h, 48h, 72h e 7 dias pós-operatórias. As diferenças entre o medicamento de teste e o placebo foram determinadas como a variável de resposta. Um modelo de Equação de Estimativa Generalizada foi ajustado para cada variável desfecho e os grupos foram comparados pelo teste de Tukey. O ibuprofeno e a nimesulida apresentaram efeitos preemptivos gerais mais altos no controle de dor ao longo do tempo, sem diferenças entre eles (p = 0,557). O paracetamol mostrou efeitos gerais mais baixos no controle do edema ao longo do tempo, quando comparado aos outros medicamentos em teste, que mostraram efeitos semelhantes (p<0,05). Também foram observados melhores resultados na quantidade de medicamentos de resgate para o ibuprofeno e a nimesulida, sem diferenças entre eles (p = 0,999). Ibuprofeno e a nimesulida mostraram melhores efeitos preemptivos gerais nas cirurgias de terceiros molares inferiores impactados e assim devem ser considerados caso a caso como medicamentos de escolha em analgesia preemptiva. Na segunda proposta de investigação, de um total de 360 indivíduos com necessidade de cirurgias a retalho, foram selecionados 40 pacientes, com idade entre 18 a 60 anos (43,40 ± 11,91), alocados em 2 grupos (n = 20 por grupo), sendo 1) ibuprofeno; 2) nimesulida. Através da escala visual analógica, dor pós-operatória foi avaliada nos tempos 1h, 6h, 12h, 24h, 48h e 72h. As diferenças entre medicamento teste e placebo foram determinadas como a variável de resposta. Um modelo de Equação de Estimativa Generalizada separado foi ajustado para cada variável desfecho e os grupos foram comparados pelo teste de Tukey. O uso de medicação de resgate foi menor e o tempo pós-operatório foi maior nos grupos teste ibuprofeno e nimesulida em comparação ao placebo (p<0,001). E o grupo nimesulida apresentou escores de EVA mais baixos nos tempos T12, T24, T72 horas (p<0,001; p<0,001; p<0,007), mostrando-se um coadjuvante benéfico para o controle da dor pós-operatória em cirurgias periodontais a retalho.

Preemptive analgesia has as its principle the administration of drugs before the start of painful stimuli, in order to reduce or prevent postoperative pain. Despite its importance, the effects of preemptive analgesia in dental surgeries reported in the literature are still conflicting. Thus, the objective of this study was to evaluate the clinical efficacy of different classes of drugs for preemptive analgesia, in 2 different research proposals: 1) surgeries for extraction of impacted third molars; 2) periodontal flap surgeries. To this end, randomized placebo-controlled clinical trials were carried out where the participants received, 1 hour before surgery, the test drug and the placebo in different surgeries, in a mouth-divided design. In the first research proposal, from a total of 376 patients in need of extraction of lower third molars, class IIB, 100 patients were selected, aged between 18 - 30 years (22.4 ± 2.9), allocated in 5 groups ( n = 20 per group), being: 1) acetaminophen; 2) ketoprofen; 3) ibuprofen; 4) nimesulide; 5) dexamethasone). Through a visual analog scale, postoperative pain was assessed at 1h, 6h, 12h, 24h, 48h and 72h and edema was assessed at baseline, 24h, 48h, 72h and 7 postoperative days. Differences between test drug and placebo were determined as response variable. A separate Generalized Estimation Equation model was separated for each outcome variable and the groups were compared using the Tukey test. Ibuprofen and nimesulide higher overall preemptive sinks in pain controls over time, with no differences between them (p = 0.557). Paracetamol general effects resulting from lower control of edema over time, when compared to other drugs under test, which affect other similar effects (p <0.05). Better results were also observed in the quantity of rescue drugs for ibuprofen and nimesulide, with no differences between them (p = 0.999). It was concluded that ibuprofen and nimesulide are the main general preemptive effects in impacted lower third molar surgeries. Thus, in the decision-making process for preemptive analgesia, ibuprofen and nimesulide should be considered case by case as the drugs of choice. In the second research proposal, from a total of 360 individuals in need of retail surgery, 40 patients were selected, aged between 18 and 60 years (43.40 ± 11.91) years, allocated in 2 groups (n = 20 per group), being 1) ibuprofen; 2) nimesulide. Through the visual analog scale, postoperative pain was assessed at 1h, 6h, 12h, 24h, 48h and 72h. The differences between the test drug and the placebo were determined as the response variable. A separate Generalized Estimation Equation model was separated for each outcome variable and the groups were compared using the Tukey test. The nimesulide group had lower complementary EVA scores at times T12, T24, T72 hours (p <0.001; p <0.001; p <0.007). The use of rescue medication was less secondary and the postoperative time was longer in the ibuprofen and nimesulide test groups compared to placebo (p <0.001). Thus, nimesulide can be considered a beneficial adjunct to the control of postoperative pain in periodontal flap surgeries.

Alterações bucais e o grau de dependência de idosos institucionalizados / Mouth changes and degree of dependency of institutionalized elderly / Alteraciones bucales y el grado de dependencia de ancianos institucionalizados

Este estudo objetiva relatar as alterações bucais e o grau de dependência de idosos institucionalizados. Um estudo observacional, transversal, baseado no levantamento da saúde bucal do Projeto Saúde Bucal Brasil (SB, 2010; Brasil, 2011), e Federação Dentária Internacional (FDI, 2009), sobre a classificação de dependência. O índice de ataque de cárie (CPO-D) dos idosos é elevado, edentulismo total expressivo, 52,9% são independentes, sendo que 80% faz a própria higienização bucal. Embora haja um expressivo número de idosos independentes que realizam a própria higiene bucal, os resultados indicam uma saúde bucal precária dos idosos institucionalizados.

Describe oral changes and level of dependency of institutionalized elderly. This cross-sectional observational study according to the rates adopted by the Oral Health Survey (SB 2010) and World Dental Federation on the classification of dependency. DMFT was high (31.0), total edentulism expressive, 52.9% were independente, 80% made their own oral hygiene. Although there is an evident great part of independent individuals who make their own oral hygiene, the results indicate that oral health of institutionalized elderly is very poor.

Este estudio objetiva relatar las alteraciones bucales y el grado de dependencia en ancianos institucionalizados. Un estudio observacional basado en el levantamiento de salud bucal (SB, 2010) y la Federación Dentaria Internacional (CPOD) alto, edentulismo total expresivo, el 52,9% de los ancianos independientes, siendo que el 80,0% hacía su propia higienización bucal. Aunque hay un evidente número de ancianos independientes y que realizan su propia higiene bucal, los resultados indican una salud bucal precaria de los ancianos institucionalizados.

Treatment of experimental periodontal disease by laser therapy in simvastatin-modified rats.

OBJECTIVE: The aim of this study was to evaluate low-level laser therapy (LLLT) as an adjuvant treatment for scaling and root planing (SRP) for the treatment of induced periodontitis in simvastatin-modified rats. MATERIAL AND METHODS: A total of 180 rats were evenly divided into two groups: Veh - receiving oral administration of polyethylene glycol (vehicle); S - receiving oral administration of Simvastatin. Periodontal disease was induced in both groups at the first mandibular molar. After seven days, the ligature was removed and the animals were divided into subgroups according to the following local treatments: NT - no treatment; SRP - scaling and root planing and irrigation with saline solution; and LLLT ¬- SRP and laser irradiation (660 nm; 0.03 W; 4 J). Ten animals in each subgroup/local treatment were euthanized at 7, 15 and 30 days. Samples of gingival tissue were processed to analyze the tissue oxidative damage and radiographic analysis. Levels of oxidative stress were analyzed by the expressions of Tripeptideglutathione (TG), Malondialdehyde (MDA) and Carbonylated Proteins (CP). RESULTS: The animals in S group had higher levels of TG and lower levels of MDA and CP compared with Veh group (p<0.05). Radiographically, in the intragroup analysis Veh and S, LLLT showed lower bone loss (BL) compared with NT and SRP, in all experimental periods (p<0.01). In addition, a lower BL was observed for the animals of Veh group treated with LLLT compared with treatment SRP in the S group, in all experimental periods. CONCLUSION: Within the limits of this study, we can conclude that LLLT was effective as adjuvant treatment for SRP protecting against the occurrence of oxidative tissue damages as well as for reducing alveolar bone loss in experimentally induced periodontitis simvastatin-modified rats.

Treatment of experimental periodontal disease by laser therapy in simvastatin-modified rats

Abstract Low intensity laser can be used as a promising alternative in the treatment of periodontal disease. Objective The aim of this study was to evaluate low-level laser therapy (LLLT) as an adjuvant treatment for scaling and root planing (SRP) for the treatment of induced periodontitis in simvastatin-modified rats. Material and Methods A total of 180 rats were evenly divided into two groups: Veh - receiving oral administration of polyethylene glycol (vehicle); S - receiving oral administration of Simvastatin. Periodontal disease was induced in both groups at the first mandibular molar. After seven days, the ligature was removed and the animals were divided into subgroups according to the following local treatments: NT - no treatment; SRP - scaling and root planing and irrigation with saline solution; and LLLT ¬- SRP and laser irradiation (660 nm; 0.03 W; 4 J). Ten animals in each subgroup/local treatment were euthanized at 7, 15 and 30 days. Samples of gingival tissue were processed to analyze the tissue oxidative damage and radiographic analysis. Levels of oxidative stress were analyzed by the expressions of Tripeptideglutathione (TG), Malondialdehyde (MDA) and Carbonylated Proteins (CP). Results The animals in S group had higher levels of TG and lower levels of MDA and CP compared with Veh group (p<0.05). Radiographically, in the intragroup analysis Veh and S, LLLT showed lower bone loss (BL) compared with NT and SRP, in all experimental periods (p<0.01). In addition, a lower BL was observed for the animals of Veh group treated with LLLT compared with treatment SRP in the S group, in all experimental periods. Conclusion Within the limits of this study, we can conclude that LLLT was effective as adjuvant treatment for SRP protecting against the occurrence of oxidative tissue damages as well as for reducing alveolar bone loss in experimentally induced periodontitis simvastatin-modified rats.

Local application of statins in the treatment of experimental periodontal disease in rats.

OBJECTIVE: The objective of this study was to evaluate the local effects of statins as adjuvants for treatment by scaling and root planing (SRP) of periodontal disease induced in rats. MATERIAL AND METHODS: Ninety rats were used in the present experiment. Periodontal disease was induced in all animals using a cotton thread placed in the left first mandibular molar. After 7 days of induction, the bandage was removed and the animals were divided into three groups: 1) NT group (n=30), no treatment; 2) SRP group (n=30): SRP and irrigation with control gel; 3) S group (n=30) - SRP and irrigation with Simvastatin. Ten animals from each group were euthanized at 7, 15 and 30 days after treatment. Gingival biopsy specimens were processed to analyze the expression of matrix metalloproteinase 8 (MMP-8). The mandibles were removed and submitted to radiographic and laboratory processing for histometric analysis. RESULTS: The S group showed a significantly lower expression of MMP-8 compared to NT and SRP groups in all experimental periods. In the radiographic and histometric analyses between the groups, S group showed a significantly lower bone loss (BL) compared to NT and SRP groups in all experimental periods. CONCLUSIONS: Within the limits of this study, it can be concluded that locally applied statin was effective as an adjuvant treatment for SRP in rats with induced periodontal disease.

Local application of statins in the treatment of experimental periodontal disease in rats

Abstract Objective The objective of this study was to evaluate the local effects of statins as adjuvants for treatment by scaling and root planing (SRP) of periodontal disease induced in rats. Material and Methods Ninety rats were used in the present experiment. Periodontal disease was induced in all animals using a cotton thread placed in the left first mandibular molar. After 7 days of induction, the bandage was removed and the animals were divided into three groups: 1) NT group (n=30), no treatment; 2) SRP group (n=30): SRP and irrigation with control gel; 3) S group (n=30) - SRP and irrigation with Simvastatin. Ten animals from each group were euthanized at 7, 15 and 30 days after treatment. Gingival biopsy specimens were processed to analyze the expression of matrix metalloproteinase 8 (MMP-8). The mandibles were removed and submitted to radiographic and laboratory processing for histometric analysis. Results The S group showed a significantly lower expression of MMP-8 compared to NT and SRP groups in all experimental periods. In the radiographic and histometric analyses between the groups, S group showed a significantly lower bone loss (BL) compared to NT and SRP groups in all experimental periods. Conclusions Within the limits of this study, it can be concluded that locally applied statin was effective as an adjuvant treatment for SRP in rats with induced periodontal disease.

Drug addiction: self-perception of oral health / Drogadição: Autopercepção em Saúde Bucal / Adicción a las drogas: auto percepción de la salud bucal

Objective: To report the self-perception of substance-abusing individuals who were in a recovery process regarding sociodemographic conditions and general and oral health. Methods: Descriptive cross-sectional study conducted in a recovery center for drug addiction in Alfenas, Minas Gerais, Brazil, in 2015, with 39 men aged over 18 years old. Data were collected using a semi-structured questionnaire that addressed: socioeconomic status, selfperception of general and oral health, access to dental care, relationship with the dentist, and other issues. In order to assess the self-perception of oral health, the variable was dichotomized into "satisfactory" and "unsatisfactory", which refer to what the individual acknowledges as a good or poor condition of oral health, using Fisher's exact test with 5% significance level. Results: Most frequent diseases were depression, 35.90% (n=14), insomnia, 35.9%, (n=14) and recurring headache (23.1%; n=9); however, 61.50% (n=24) of the participants reported not getting sick easily, which contrasts with their self-perception. Regarding oral health, only 30.50% (n=12) of the participants reported brushing their teeth three times a day; 53.80% (n=21) had dentinal hypersensitivity; 41.00% (n=16) had dry mouth and bad breath; 30.80% (n=12) claimed to have bruxism and reported having one or more loose teeth; 28.20% (n=11) reported clenching the teeth in an exaggerated way, and 33.30% (n=13) reported feeling tooth pain. Conclusion: The self-perception of individuals ­ under 30 years old, single, white or mulattos ­ regarding their general health was contradictory, as they rated it as good but have reported depression, insomnia and weight loss; additionally, oral health was considered poor with unsatisfactory conditions, which highlights the harmful effects of substance abuse.

Objetivos: Relatar a autopercepção de indivíduos drogaditos que se encontravam em estágio recuperatório, quanto às condições sociodemográficas, de saúde geral e bucal. Métodos: Estudo descritivo e transversal realizado em 2015 em um centro de triagem de recuperação de dependentes químicos, em Alfenas, MG, Brasil, com 39 internos do sexo masculino e acima de 18 anos. Por meio de um questionário semi-estruturado, investigaram-se temas referentes à condição socioeconômica, percepção dos internos em relação à própria saúde geral e bucal, acesso ao tratamento odontológico, relacionamento com o cirurgião-dentista, entre outros. A variável autopercepção em saúde bucal foi dicotomizada em "satisfatória" e "insatisfatória" para aplicação do teste Exato de Fisher, com nível de significância de 5%. Resultados: As doenças mais frequentes foram depressão, 35,90% (n=14), insônia, 35,9%, (n=14) e dor de cabeça recorrente (23,1%; n=9), apesar de 61,50% (n=24) dos internos afirmarem não ficar doentes, indicando autopercepção conflitante. Ao serem questionados sobre a frequência de escovação diária, apenas 30,50% (n=12) mencionaram três vezes ao dia, 53,80% (n=21) com sensibilidade dentinária; 41,00% (n=16) com sensação de boca seca e mal hálito; 30,80% (n=12) bruxismo, 28,20% (n=11) apertamento dental e 33,30% (n=13) dor em algum dente. Conclusão: A autopercepção dos internos analisados com menos de 30 anos, solteiros, brancos ou mulatos, quanto ao seu estado geral de saúde era contraditória, já que classificaram como boa, mas relataram depressão, insônia e perda de peso; e saúde bucal foi considerada ruim com condições insatisfatórias, que destacam os efeitos nocivos do uso de drogas.

Objetivo: Relatar la auto percepción de individuos drogadictos que estaban en proceso de recuperación, respecto las condiciones socio-demográficas y la salud general y bucal. Métodos: Estudio transversal y descriptivo realizado en un centro de recuperación para drogadicción en Alfenas, Minas Gerais, Brasil, en 2015, com 39 hombres con más de 18 años. Los datos fueron recogidos a través de un cuestionario semiestructurado que investigaba la posición socioeconómica, la auto percepción de la salud general y bucal, El acceso al cuidado dental, la relación con el dentista y otros temas. Para evaluar la auto percepción de la salud bucal la variable fue dividida en "satisfactoria" y "no satisfactoria" la cual refiere a los conocimientos del individuo sobre la buena o mala condición de salud bucal utilizando la prueba de Exacto de Fisher con El 5% de nivel de significancia. Resultados: Las enfermedades más frecuentes fueron la depresión con el 35,90% (n=14), el insomnio con el 35,9%, (n=14) y dolor de cabeza recurrente (23,1%; n=9); sin embargo, el 61,50% (n=24) de los participantes relataron no enfermarse con facilidad lo que contrasta con su auto percepción. Respecto a la salud bucal, solamente el 30,50% (n=12) de los participantes relataron cepillar los dientes tres veces al día; El 53,80% (n=21) tuvieron hipersensibilidad dental; el 41,00% (n=16) tuvieron la sensación de boca seca y mal aliento; El 30,80% (n=12) reclamaron de bruxismo y relataron tener uno o más dientes perdidos; el 28,20% (n=11) relataron apretar los dientes de manera exagerada y el 33,30% (n=13) relataron tener dolor de diente. Conclusión: La auto percepción de los individuos - por abajo de los 30 años, solteros, blancos o mulatos - respecto su salud general fue contradictoria ya que clasificaron como buena aunque reportaron la depresión, el insomnio y La pérdida de peso; además, la salud bucal fue considerada pobre con condiciones no satisfactorias, las cuales resalta los efectos nocivos de la substancia abusiva.