Effects of multiple sessions of antimicrobial photodynamic therapy (aPDT) in the treatment of periodontitis in patients with uncompensated type 2 diabetes: A randomized controlled clinical study.

BACKGROUND: The aim of this study was to compare, through clinical and microbiological analysis, the use of multiple applications of aPDT as an adjuvant therapy to non-surgical periodontal treatment of stage III and IV grade C periodontitis in type 2 diabetic (DM2) patients. METHODS: Thirty-four patients with non-compensated DM2 and periodontitis were randomly divided into two groups: SRP Group (n = 17): scaling and root planing (SRP); and SRP+aPDT Group (n = 17): SRP followed by 3 consecutive aPDT applications, immediately, 48 and 96 h after in pockets with probing depth (PD) ≥5 mm. In SRP+aPDT, after 1 min of irrigation with methylene blue (10 mg/ml), the sites were irradiated with a 660 nm diode laser for 50 s (157 J/cm2, 4.7 J, 100 mW). Porphyromonas gingivalis (P. gingivalis) and Prevotella intermedia (P. intermedia) were quantified by real-time qPCR. Periodontal clinical and microbiological data (baseline, 90 and 180 days) were statistically analyzed (α = 5%). RESULTS: There was a significant reduction in PD and bleeding on probing at 90 and 180 days post-treatment in both groups (p<0.05). The SRP+aPDT group presented a significant reduction in the number of residual pockets at 90 and 180 days (p<0.05). The SRP+aPDT group presented reduced PD means in deep pockets 180 days post-treatment (p<0.05). No differences were observed in P. gingivalis and P. intermedia levels (p>0.05). CONCLUSION: The results of present study indicate that the use of multiples aPDT sessions as adjuvant therapy in the periodontal treatment of uncompensated diabetic patients with periodontitis promotes additional clinical benefits.

Prevalence of Gingival Hyperplasia Induced by Anticonvulsants: A Systematic Review / Prevalência da Hiperplasia Gengival Induzida pelo uso de anticonvulsivantes: Revisão sistemática

Objective: Gingival hyperplasia (GH) is one of the side effects of anticonvulsant drugs. The aim of this study was to verify the prevalence of GH associated with the use of anticonvulsant, through a systematic review. Material and Methods: Systematic search was done at databases Pubmed and Embase between January 1984 and March of 2020 for identification of articles addressing the prevalence of GH associated with the use of anticonvulsant drugs. The methodological index for non-randomized studies (MINORS) was independently assessed for quality in the selected papers. Results: The search identified 4.471 references. Nine articles were selected and evaluated 632 participants. All of the studies included in the systematic review showed a low risk of bias. The anticonvulsants used by patients were carbamazepine, ethosuximide, phenytoin, primidone, phenobarbital, sodium valproate. The studies showed a correlation between different types of anticonvulsants and GH prevalence, with a range from 0% to 73%. Among the anticonvulsants used, phenytoin showed the greatest incidence of GH, varying between 15.61% and 73% in patients. Conclusion: In the analysis of the results obtained in the literature, it is possible to notice that the great majority of studies presented incidence of GH associated with anticonvulsant use. However, further studies are necessary to understand the anticonvulsant action mechanism inducing GH, as well as the prevention forms, given that GH is a significant side effect. (AU)

Objetivo: Hiperplasia gengival (HG) é um dos efeitos colaterais das drogas anticonvulsivantes. O objetivo deste estudo foi verificar a prevalência de HG associada ao uso de anticonvulsivantes, por meio de uma revisão sistemática. Material e Métodos: A busca sistemática foi realizada nas bases de dados Pubmed e Embase entre janeiro de 1984 e março de 2020 para identificação de artigos que abordassem a prevalência de HG associada ao uso de drogas anticonvulsivantes. Foi avaliado independentemente, o risco de viés através do "Methodological index for non-randomized studies" (MINORS), para análise da qualidade dos trabalhos selecionados. Resultados: A pesquisa identificou 4.471 referências. Nove artigos foram selecionados e avaliaram 632 participantes. Todos os estudos incluídos na revisão sistemática mostraram baixo risco de viés. Os anticonvulsivantes utilizados pelos pacientes foram carbamazepina, etossuximida, fenitoína, primidona, fenobarbital e valproato de sódio. Os estudos mostraram correlação entre os diferentes tipos de anticonvulsivantes e a prevalência de HG, com variação entre 0% a 73%. Entre os anticonvulsivantes utilizados, a fenitoína apresentou a maior incidência de HG, variando entre 15,61% e 73% em pacientes. Conclusão: Na análise dos resultados obtidos na literatura, é possível notar que a grande maioria dos estudos apresentou incidência de HG associada ao uso de anticonvulsivantes. No entanto, estudos adicionais são necessários para compreender o mecanismo de ação do anticonvulsivante para a indução da HG, bem como as formas de prevenção, dado que a HG é um efeito colateral significativo (AU)

Antimicrobial photodynamic therapy (aPDT) with curcumin and LED, as an enhancement to scaling and root planing in the treatment of residual pockets in diabetic patients: A randomized and controlled split-mouth clinical trial.

INTRODUCTION: Residual pockets represent a risk factor for periodontal disease progression. Diabetes Mellitus (DM) may impair prognosis after cause-related therapy, mainly due to the chronic hyperglycemia that negatively influences tissue repair. This study evaluated the clinical efficacy of antimicrobial photodynamic therapy (aPDT) with curcumin (CUR) solution (100 mg/L) and LED irradiation (465-485 nm), as an adjunctive therapy to scaling and root planing (SRP), in the treatment of residual pockets in type 2 diabetic patients. METHODS: Individuals with type 2 DM and chronic periodontitis presenting at least one residual pocket per quadrant were selected (n = 25). In each patient, all residual pockets with probing depth (PD) ≥5 mm and bleeding on probing (BOP) were allocated to receive, according to quadrant: 1) SRP (SRP group); 2) SRP and irrigation with CUR solution (100 mg/L) (CUR group); 3) SRP and LED irradiation (InGaN, 465-485 nm, 0.78 cm², 78 mW, 100 mW/cm², 60 s) (LED group); 4) SRP, irrigation with CUR solution (100 mg/L), one minute of pre-irradiation, and LED irradiation (InGaN, 465-485 nm, 60 s) (aPDT group). Clinical parameters of PD, gingival recession (GR), clinical attachment level (CAL), BOP and visible plaque index (PI) were evaluated at baseline, three and six months post-therapies. Differences between the examination periods in each group were analyzed by Friedman's test for non-parametric data, while parametric data were submitted to analysis of variance (One-way ANOVA), followed by Tukey's test. Intergroup comparisons were performed by Kruskal-Wallis test. RESULTS: In an intergroup comparison, the mean values for PD, GR, CAL, BOP and PI were not different at baseline, three and six months (p > 0.05). The intragroup comparison evidenced reduction in PD and BOP in all treatment groups at three and six months (p < 0.05). Significant CAL gain was notable only for the aPDT and LED groups at three months in comparison to baseline data (p < 0.05). CONCLUSION: Treatment of residual pockets in patients with type 2 DM through association of SRP with aPDT (CUR solution 100 mg/L and LED irradiation) or LED irradiation may yield short-term (three months) clinical benefits regarding CAL gain.

Efeitos da terapia fotodinâmica antimicrobiana (aPDT) em múltiplas sessões no tratamento da periodontite em pacientes diabéticos tipo 2: estudo clínico controlado randomizado / Effects of multiple applications of antimicrobial photodynamic therapy (aPDT) in the periodontitis treatment in diabetic type 2 patients: randomized controlled trial

Introdução: Diabetes melito e periodontite crônica são doenças crônicas comuns que apresentam uma relação bidirecional entre si. A terapia fotodinâmica antimicrobiana (aPDT) apresenta-se como uma terapia que promove redução bacteriana e pode aumentar os benefícios da terapia periodontal. O objetivo deste estudo foi comparar, por meio de análise clínica, o uso de múltiplas aplicações da aPDT como terapia coadjuvante ao tratamento periodontal não cirúrgico no tratamento da periodontite em pacientes diabéticos tipo 2. Métodos: Trinta e quatro pacientes diabéticos tipo 2 descompensados portadores de periodontite crônica foram selecionados e randomicamente divididos em dois grupos: Grupo RAR (n=17): pacientes que receberam raspagem e alisamento radicular (RAR) em sessão única. Grupo RAR+aPDT (n=17): pacientes que receberam RAR em sessão única seguido de 3 aplicações de aPDT (0h, 48h e 96h) após o término da RAR nas bolsas moderadas e profundas. Os exames clínicos foram realizados no início (baseline), 90 e 180 dias após o tratamento. Foram avaliados os parâmetros clínicos de profundidade de sondagem (PS), nível de inserção clínica (NIC), recessão gengival (RG), sangramento à sondagem (SS) e índice de placa vísivel (IPV) de boca toda. Os dados foram submetidos à análise estatística. Resultados: Aos 90 e 180 dias foi verificada melhora significativa em PS e SS em ambos os grupos (p<0,05). No grupo RAR+aPDT, houve redução estatisticamente significante do número de bolsas com PS≥5mm e com sangramento aos 90 e 180 dias (p<0,05). Ambos os grupos reduziram o número de bolsas moderadas, a média de PS em bolsas moderadas nos dois períodos avaliados e a média de PS em bolsas profundas aos 90 dias (p<0,05). Apenas o grupo RAR+aPDT reduziu a média de PS de bolsas profundas aos 180 após o tratamento (p<0,05). Conclusão: Os resultados de presente estudo indicam que o uso de múltiplas sessões de aPDT, como terapia coadjuvante no tratamento periodontal de pacientes diabéticos descompensados portadores de periodontite crônica, promove benefícios clínicos adicionais(AU)

Background: Diabetes mellitus and chronic periodontitis are common chronic diseases that have a two-way relationship with each other. The antimicrobial photodynamic therapy (aPDT) presents itself as a therapy, which promotes bacterial reduction and can increase the benefits of periodontal therapy. The aim of this study was to compare, through clinical analysis, the use of multiple applications of the aPDT as adjunct therapy to non-surgical periodontal treatment in the treatment of periodontitis in diabetic type 2 patients. Methods: Thirty-four patients with decompensated diabetic type 2 and chronic periodontitis were selected and randomly divided into two groups: SRP Group (n=17): patients who received scaling and root planing (SRP); SRP+aPDT Group (n=17): patients who received SRP and aPDT (0h, 48h and 96h) in moderated and deep pockets. Clinical parameters analyzed were probing depth (PD), clinical attachment level (CAL), gingival resection (GR), bleeding on probing (BOP) and plaque index (PI) at baseline, 90 and 180 days after treatment. The data were statistically analyzed. Results: There was a significant reduction in PD and BOP of the full mouth at 90 and 180 days after treatment in both groups (p<0.05). SRP+aPDT group presented a significant reduction of number of residual pockets at 90 and 180 days (p<0.05). Both groups reduced number of moderated pockets, mean of PD of moderated pockets at two periods and mean of PS in deep pockets at 90 days (p<0.05). Only SRP+aPDT group reduced mean of deep pockets 180 days after treatment (p<0.05). Conclusion: The results of present study indicate that the use of multiples sessions of aPDT adjunct therapy in periodontal treatment in diabetics patients with chronic periodontitis promotes additional clinical benefits(AU)

aPDT como coadjuvante no tratamento da periodontite agressiva localizada / aPDT as an adjuvant in the treatment of localized aggressive periodontitis ­ report of two cases

A terapia fotodinâmica antimicrobiana (aPDT) tem demonstrado, em alguns estudos clínicos, ser efetiva como terapia coadjuvante à raspagem e alisamento radicular (RAR) na periodontite agressiva. Além dos efeitos antimicrobianos da aPDT, a irradiação com laser de baixa intensidade pode modular a resposta dos tecidos periodontais. O objetivo deste trabalho foi relatar o uso da aPDT como coadjuvante à RAR no tratamento de periodontite agressiva localizada. Duas pacientes do sexo feminino, com 31 e 23 anos de idade, sem envolvimento sistêmico, procuraram atendimento odontológico relatando desconforto ao mastigar. Clinicamente, observou-se presença de tecido gengival edemaciado e sinais de inflamação discretos. A média de sítios com profundidade a sondagem (PS) maior do que 4 mm foi de 15,43% e 4,93%, respectivamente. As duas pacientes foram submetidas à sessão única de RAR usando ultrassom e curetas manuais, seguida da aplicação da aPDT em todas as bolsas com PS  4 mm. O protocolo da aPDT seguiu os seguintes parâmetros: azul de metileno (10 mg/ml) seguido de irradiação com laser de baixa potência após um minuto da aplicação (AsGaAl, 660 nm, 100 mW, 48 segundos, 157 J/cm2). Na reavaliação, foi verificada diminuição média da PS de 1,16 mm (caso 1) e 1,13 mm (caso 2) nas bolsas tratadas com aPDT, com redução do número de sítios com sangramento em ambos os casos. De acordo com os resultados clínicos observados, sugere-se que a aPDT apresenta-se como uma terapia coadjuvante promissora no tratamento da periodontite agressiva localizada.

Antimicrobial photodynamic therapy (aPDT) has been shown, in some clinical studies, to be effective as an adjunct therapy to scaling and root planing (SRP) in aggressive periodontitis. In addition to the antimicrobial effects of aPDT, low intensity laser irradiation can modulate the response of periodontal tissues. The objective of this work is to report the use of aPDT as an adjuvant to SRP in the treatment of localized aggressive periodontitis. Two female patients, 31 and 23 years of age, without systemic involvement, sought dental care, reporting discomfort when chewing. Clinically, the presence of gingival swollen tissue and discrete signs of infl ammation were observed. The mean number of sites with probing depth (PD) greater than 4 mm was 15.43% and 4.93%, respectively. The two patients received a single SRP session using ultrasound and manual curettes, followed by the application of aPDT in all pockets with PS  4 mm. The aPDT protocol followed the parameters: methylene blue (10 mg/ml) followed by low-power laser irradiation after 1 minute of application (AsGaAl, 660 nm, 100 mW, 48 seconds, 157 J/cm2). The mean PD decrease of 1.16 mm (case 1) and 1.13 mm (case 2) in the pockets treated with aPDT were observed, with a reduction in the number of sites with bleeding in both cases. According to the clinical results observed, it is suggested that aPDT is a promising adjuvant therapy for the treatment of localized aggressive periodontitis.

Comparison of repeated applications of aPDT with amoxicillin and metronidazole in the treatment of chronic periodontitis: A short-term study.

AIM: The aim of this study was to compare the clinical effects of Metronidazole (MTZ) combined with Amoxicillin (AMX) and repeated applications of antimicrobial photodynamic therapy (aPDT) as an adjuvant for the treatment of chronic periodontitis. METHODS: A double-blind controlled and randomized clinical trial was conducted in 34 patients. All of the patients were treated with scaling and root planing (SRP) and separated into 2 groups: the MTZ+AMX Group (n=17), who received SRP and the systemic use of MTZ (400mg 3×per day for 7days) and AMX (500mg 3×per day for 7days), and the aPDT Group (n=17), who received SRP and three aPDT applications at all sites with a probing depth≥5mm immediately, at 48 and 96h after scaling and placebo pills over the span of 7days. Clinical examinations were performed at baseline and 90days post-therapy. The clinical parameters of bleeding on probing (BOP), probing depth (PD), and clinical attachment level (CAL) were measured. The aPDT was conducted using methylene blue and a low-level laser (GaAlAs 660nm, 100mW, 48s, and 160J/cm2) in all sites with a probing depth≥5mm. A statistical analysis was also performed (α=5%). RESULTS: There was a significant improvement in CAL only in the intermediate pocket in the aPDT group compared to the MTZ+AMX group between baseline and 90days post-treatment (p=0.01). There was a reduction of both BOP and the percentage of residual pockets at 90days after treatment compared with baseline in both groups (p<0.05). CONCLUSION: Both proposed adjuvant therapies associated with conventional mechanical treatment in patients with chronic periodontitis were equally effective in terms of the gain of clinical insertion, control of inflammation and elimination of residual pockets.

Consequências da doença de Parkinson na saúde periodontal / Consequences of Parkinson's disease in periodontal health ­ a literature review

A doença de Parkinson é uma desordem neurológica, crônica e progressiva que atinge o sistema nervoso central. Nela, ocorre a degeneração dos neurônios que sintetizam a dopamina, neurotransmissor presente na substância negra do cérebro e que é responsável por transmitir estímulos para a realização de movimentos voluntários automáticos. Os sintomas da doença de Parkinson, como o tremor e a rigidez muscular, têm sido associados ao aumento da incidência de problemas bucais, como doença periodontal, perdas dentais, dor orofacial e cárie. Essa revisão da literatura teve por objetivo apresentar e discutir as evidências científicas disponíveis sobre a prevalência e severidade da doença periodontal em pacientes portadores da doença de Parkinson. Alguns estudos voltados a este assunto mostram diferenças significativas em relação ao aumento de problemas bucais entre portadores da doença de Parkinson e indivíduos saudáveis. Diante da análise da literatura, pôde-se verificar que a incidência e severidade da doença periodontal aumentam conforme a doença de Parkinson progride, e a prevalência de complicações bucais também está relacionada à evolução da doença neurológica em questão, diretamente relacionada ao comprometimento da realização adequada das manobras de higienização bucal.

Parkinson's disease is a chronic progressive neurological disorder, which affects the central nervous system. It is a degeneration of neurons that synthesize dopamine, the neurotransmitter at the substantia nigra of the brain responsible for transmitting stimuli for performing automatic volunteers movements. The symptoms of Parkinson's disease such as tremors and stiffness, have been linked to increased incidence of oral problems such as periodontal disease, dental orofacial pain loss, caries disease. This literature review aims to present and discuss the scientific evidence available about the prevalence and severity of periodontal disease in patients with Parkinson's disease. Some studies focused on this subject show significant differences in relation to the increase of oral problems among people with Parkinson's disease and healthy individuals. On the analysis of the literature, one can verify that the symptoms of Parkinson's appear to increase the incidence and severity of periodontal disease, and the prevalence of oral complications are related to evolution of neurological disease in question, directly related to the commitment of carrying out appropriate oral hygiene.