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Introducción: Mycoplasma pneumoniae es una bacteria de distribución mundial que comúnmente ocasiona infecciones respiratorias en forma de traqueobronquitis y neumonía atípica, recientemente se ha descrito como etiología de una enfermedad denominada Mycoplasma-induced rash and mucositis. Caso clínico: Varón de 11 años, procedente del departamento de Tacna en Perú que se presentó con cuatro días de enfermedad caracterizado por fiebre, tos, disnea, conjuntivitis bilateral purulenta y lesiones erosivas muy dolorosas en mucosa yugal, lengua y labios, recibió tratamiento antibiótico, antiviral y antifúngico, evolucionando favorablemente. Se confirmó infección por Mycoplasma pneumoniae mediante serología IgM por ELISA. De nuestro conocimiento, este es el primer caso de Mucositis sin rash inducido por Mycoplasma pneumoniae reportado en Perú, el reconocimiento temprano de este síndrome permitirá un tratamiento más específico, evitando la restricción de fármacos apropiados(AU)

Introduction: Mycoplasma pneumoniae is a bacterium of worldwide distribution which commonly causes respiratory infections such as tracheobronchitis and atypical pneumonia. It has recently been described as etiology of a disease called Mycoplasma pneumoniae-induced rash and mucositis. Objective: Present the first known report of Mycoplasma pneumoniae-associated mucositis in Peru, diagnosed by compatible clinical picture and confirmed by serology. Clinical case: A male 11-year-old patient from the Tacna Region in Peru presented with a clinical state of four days' evolution characterized by fever, coughing, dyspnea, bilateral purulent conjunctivitis and very painful erosive lesions on the jugal mucosa, tongue and lips. The patient received antibiotic, antiviral and antifungal treatment, to which he responded favorably. Mycoplasma pneumoniae infection was confirmed by IgM ELISA serology. Conclusions: Early recognition of this syndrome will lead to a more specific treatment, avoiding the restriction of appropriate drugs(AU)

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Introducción: Los minitornillos de ortodoncia son dispositivos temporales de anclaje utilizados ampliamente en ortodoncia correctiva. Sin embargo, se ha reportado en la literatura que su tasa clínica de éxito no es completa debido a que pueden existir fallas relacionadas con la pérdida de su estabilidad. Varios factores pueden comprometer el anclaje y están relacionados con el tipo de implante, su manejo quirúrgico y el hospedero. Dentro de este último, se encuentra la inflamación del tejido periimplantario o mucositis que, aunque reversible, es necesario su tratamiento temprano para evitar su progresión a la afectación de tejido duro (periimplantitis). Objetivo: Describir un caso clínico de mucositis periimplantaria asociada a un dispositivo de anclaje ortodóntico temporal. Presentación del caso: Paciente femenina que acudió a la consulta por presentar dolor en la zona anterior del maxilar superior. Durante el examen intraoral se observó que usaba aparatos de ortodoncia con mecanismo de anclaje: dos minitornillos de ortodoncia ubicados al nivel de los caninos superiores. Se realizó la remoción quirúrgica de los minitornillos de ortodoncia, se le indicó el uso de antibióticos y se realizó estudio histopatológico para descartar malignidad. Se diagnosticó con mucositis periimplantaria. Conclusiones: La remoción quirúrgica de los minitornillos de ortodoncia es una excelente alternativa para evitar la progresión de la lesión hacia los tejidos duros. A través de esta técnica lograron eliminar signos de dolor, enrojecimiento y sangrado(AU)

Introduction: Orthodontic miniscrews are temporary anchorage devices widely used in corrective orthodontics. However, it has been reported in the literature that their clinical success rate is not high, due to failures related to the loss of stability. Anchorage may be affected by factors associated to the type of implant, its surgical management and the host. Host-related factors include peri-implant tissue inflammation or mucositis, which though reversible, its early treatment is necessary to prevent expansion into and damage to the hard tissue (peri-implantitis). Objective: Describe a clinical case of peri-implant mucositis associated to a temporary orthodontic anchorage device. Case presentation: A female patient attends clinical consultation with pain in the anterior zone of her upper maxilla. Intraoral examination revealed the presence of orthodontic appliances with an anchorage mechanism: two orthodontic miniscrews located at the level of the upper canines. Surgical removal was performed of the orthodontic miniscrews, antibiotics were indicated and histopathological testing was conducted to rule out malignancy. The patient was diagnosed with peri-implant mucositis. Conclusions: Surgical removal of orthodontic miniscrews is an excellent alternative to prevent the progress of the lesion into hard tissues. Pain signs, reddening and bleeding were all eliminated with the technique applied(AU)

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Mucocutaneous eruptions associated with respiratory pathogens, specifically Mycoplasma pneumoniae (MP), has recently been described as a MIRM (MP-induced rash and mucositis). The term reactive infectious mucocutaneous eruption (RIME) has been proposed, since non-MP pathogens may also cause a similar rash and mucositis. We report two cases with clinical manifestations suggestive of MIRM/RIME, both with documented adenovirus infection.

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PURPOSE: Mycoplasma pneumoniae is a common cause of pediatric respiratory infections, with a quarter having extrapulmonary complications, most commonly a mucocutaneous eruption involving the ocular surface. A detailed description of the ophthalmic manifestations in Mycoplasma-induced rash and mucositis (MIRM) is currently lacking in the scientific literature. METHODS: This is a retrospective chart review of consecutive cases of MIRM at a tertiary referral children's hospital between October 1 and December 1, 2018, with up to 2 months of follow-up. Main outcomes and measures were demographic information, clinical examination findings including visual acuity, detailed anterior segment findings, and course of both ophthalmic and systemic disease. RESULTS: Five patients were included. Age range was 8 to 17 years (mean age 11.9 years, median 11 years), with a strong male preponderance (4:1). All patients had inflammatory conjunctivitis. One patient had recurrent conjunctival pseudomembrane formation, whereas 2 patients had lid margin and conjunctival ulceration. No cases had corneal involvement and visual outcomes were excellent. CONCLUSIONS: MIRM is associated with ocular involvement in almost all cases. Although this is generally mild, conjunctival epithelial defects and pseudomembrane formation can occur. We recommend that pediatric ophthalmologists follow children who are hospitalized with MIRM as closely as they would those diagnosed with other mucocutaneous syndromes, such as Stevens-Johnson syndrome or toxic epidermal necrolysis.

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Boron neutron capture therapy (BNCT) is a targeted therapy, which consists of preferential accumulation of boron carriers in tumor followed by neutron irradiation. Each oral cancer patient has different risks of developing one or more carcinomas and/or oral mucositis induced after treatment. Our group proposed the hamster oral cancer model to study the efficacy of BNCT and associated mucositis. Translational studies are essential to the advancement of novel boron delivery agents and targeted strategies. Herein, we review our work in the hamster model in which we studied BNCT induced mucositis using three different cancerization protocols, mimicking three different clinical scenarios. The BNCT-induced mucositis increases with the aggressiveness of the carcinogenesis protocol employed, suggesting that the study of different oral cancer patient scenarios would help to develop personalized therapies.

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O objetivo geral do presente estudo foi avaliar a expressão das proteínas relacionadas às células mieloides em pacientes com mucosite peri-implantar e peri-implantite; bem como a correlação desses biomarcadores com os parâmetros clínicos da doença peri-implantar. Os objetivos específicos foram avaliar os níveis de CSF-1, IL-34, IL-1ß, na saliva e no fluido peri-implantar de pacientes com doença peri-implantar e as correlações clínicas (estudo 1) e avaliar os níveis de sTREM-1, PGLYRP1, MMP-8, TIMP-1 e a razão MMP-8/TIMP-1 na saliva de pacientes com mucosite peri-implantar, peri-implantite, gengivite e periodontite e as correlações clínicas; bem como analisar a influência da existência concomitante da periodontite na expressão desses biomarcadores em pacientes com doença peri-implantar (estudo 2). No estudo 1, quarenta e três pacientes foram divididos em dois grupos: (1) Mucosite peri-implantar e (2) Peri-implantite; para o estudo 2, além dos pacientes do estudo 1, foram acrescidos pacientes com gengivite e com periodontite. Os parâmetros clínicos avaliados foram: profundidade de bolsa (PB), nível de inserção clínico (NIC), índice de placa e sangramento à sondagem. A saliva não estimulada foi coletada nos pacientes do estudo 1 e 2 e o fluido peri-implantar foi coletado no estudo 1. Os níveis dos biomarcadores foram mensurados através do ELISA. No estudo 1, os resultados das características clínicas de boca toda demonstraram que a PB dos pacientes com peri-implantite foi significativamente maior quando comparada aos pacientes com mucosite (p = 0,036). No estudo 2, a PB (p <0,001) e o NIC (p <0,001) dos pacientes com periodontite foi significativamente maior quando comparada aos demais pacientes. Tanto no estudo 1 quanto no estudo 2, a análise dos parâmetros peri-implantares mostrou que os pacientes com peri-implantite apresentaram maior PB nos implantes (p = 0,003) em comparação aos pacientes com mucosite. A análise dos níveis salivares de CSF-1, IL-34, IL-1ß, sTREM-1, PGLYRP1 e MMP-8 não apresentaram diferença significativa entre os grupos e também não foi encontrada correlação significativa desses biomarcadores com os parâmetros clínicos. No estudo 1, níveis de CSF-1 no fluido peri-implantar foram significativamente maiores nos pacientes com peri-implantite (p = 0,028), mostrando potencial para discriminar entre peri-implantite e mucosite (AUC = 0,695, IC 95% 0,53-0,85; p = 0,029). No estudo 2, os níveis salivares de MMP-8 foram significativamente maiores nos pacientes com doença peri-implantar e presença da periodontite concomitante (p = 0,03). Assim, pôde-se concluir que os níveis salivares das proteínas relacionadas às células mieloides não apresentaram diferença estatística entre os pacientes com mucosite e peri-implantite, sem correlação com os parâmetros clínicos. Os níveis de CSF-1 estavam elevados no fluido peri-implantar de pacientes com peri-implantite, sugerindo assim, um potencial osteoclastogênico alterado. Não observamos diferenças significativas nos níveis de sTREM-1, PGLYRP1 e MMP-8 entre pacientes com doenças periodontais e peri-implantares. Além disso, a presença da periodontite concomitante em pacientes com doença peri-implantar pode afetar os níveis salivares de MMP-8.(AU)

The general aim of present study was to evaluate the expression of myeloid cell-related proteins from patients having peri-implant mucositis and peri-implantitis; as well as their correlation to clinical parameters of peri-implant disease. The specific aims were to evaluate levels of CSF-1, IL-34, IL-1ß, in saliva and peri-implant crevicular fluid from patients having peri-implant disease and their correlation to clinical parameters (study 1) and to evaluate levels of sTREM- 1, PGIMRP1, MMP-8, TIMP-1 and MMP-8/TIMP-1 ratio in saliva from patients having peri-implant mucositis, peri-implantitis, gingivitis and periodontitis, and their correlation to clinical parameters; as well as to analyze the influence of the concomitant existence of periodontitis in the expression of these biomarkers in patients having peri-implant disease (study 2). In study 1, forty-three patients were divided into two groups: (1) peri-implant mucositis and (2) Peri-implantitis; for study 2, in addition to the patients in study 1, patients with gingivitis and periodontitis were added. The following clinical parameters were evaluated: probing depth (PD), clinical attachment level (CAL), visible plaque index and bleeding on probing. Unstimulated whole saliva was collected in the patients in study 1 and 2, and peri-implant crevicular fluid was collected in study 1. Biomarker levels were measured by ELISA. In study 1, regarding full-mouth periodontal parameters, PD from patients having peri-implantitis was significantly higher when compared to patients with mucositis (p = 0.036). In study 2, PD (p <0.001) and CAL (p <0.001) from patients with periodontitis were significantly higher when compared to the other patients. In both study 1 and study 2, regarding the peri-implant clinical characteristics showed that peri-implantitis patients presented higher PD in implants (p = 0.003) compared to the mucositis patients. When comparing the salivary levels of CSF-1, IL-34, IL-1ß, sTREM-1, PGLYRP1 and MMP-8, there was no significant difference between groups and no significant correlation of these biomarkers with clinical parameters was found. In study 1, CSF-1 levels were higher in peri-implant crevicular fluid from peri-implantitis compared with mucositis patients (p=0.028), showing potential to discriminate between peri-implantitis and mucositis (AUC = 0.695, 95% CI 0.53 -0.85, p = 0.029). In study 2, concomitant periodontitis resulted in higher significant levels of MMP-8 in patients with peri-implant disease (p = 0.03). Thus, based on these results, we can conclude that the salivary levels of myeloid cell-related proteins showed no difference between patients with peri-implant mucositis and peri-implantitis. There was also no significant correlation between biomarkers salivary levels and clinical parameters. Increased levels of CSF-1 in peri-implant crevicular fluid were found in peri-implantitis patients, thus suggesting an altered osteoclastogenic potential. We did not observe significant differences in levels of sTREM-1, PGLYRP1 and MMP-8 among patients with periodontal and peri-implant diseases. In addition, concomitant periodontitis in patients with peri-implant disease may affect salivary levels of MMP-8(AU)

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Sendo a mucosite e a peri-implantite as lesões mais recorrentes ao redor de implantes, e cada vez mais frequentes no consultório odontológico, faz-se necessária uma compreensão abrangente sobre seus principais fatores etiológicos, métodos de prevenção e modalidades de tratamento para uma correta conduta clínica. A presente revisão da literatura visa, de forma clara e sintetizada, identificar e ressaltar as principais causas de mucosite e peri-implantite descritas na literatura, orientar o cirurgião-dentista na obtenção do diagnóstico, informar o leitor sobre as principais modalidades de tratamento e destacar a importância da terapia de suporte para a manutenção da saúde peri-implantar. A busca eletrônica nas bases de dados Scopus, PubMed e Web of Science foi orientada pelos seguintes tópicos: definição de mucosite e peri-implantite, prevalência, obtenção do diagnóstico, fatores de risco, modalidades de tratamento e terapia de suporte. Os resultados da busca indicaram: 1) a mucosite peri-implantar pode ocorrer em 80% dos indivíduos, e a peri-implantite em até 56%; 2) não há uma única ferramenta para o diagnóstico das doenças peri-implantares, mas sim uma associação destas; 3) a etiologia da peri-implantite parece ser multifatorial, e alguns indivíduos parecem ser mais propensos ao seu desenvolvimento do que outros; 4) a mucosite pode se resolver apenas com a remoção e desinfecção não cirúrgica dos fatores locais, enquanto que na peri-implantite a terapia cirúrgica é adotada quando os sítios afetados não respondem à terapia básica; e 5) a terapia de suporte é imprescindível na determinação do sucesso a longo prazo no tratamento das doenças peri-implantares.

As the mucositis and peri-implantitis are the most recurrent lesions around implants and these increasingly frequent in the dental office, a comprehensive understanding of its main etiological factors, prevention methods and treatment modalities is necessary for proper clinic conduct. This literature review aims, in a clearly and synthesized form, identify and highlight the main causes of mucositis and peri-implantitis described in the literature, guide the dentist in getting the diagnosis, inform the reader about the main types of treatment and highlight the importance of supportive therapy for maintenance of the peri-implant health. The electronic search in Scopus databases, PubMed and Web of Science was guided by the following topics: definition of mucositis and peri-implantitis, prevalence, diagnosis, risk factors, treatment modalities and supportive therapy. The search results indicated that: 1) peri-implant mucositis can occur in 80% of individuals, peri-implantitis up to 56%; 2) there isn't a unique tool for the diagnosis of peri-implant disease, but a association of tools; 3) etiology of peri-implantitis appears to be multifactorial, and some individuals appear to be more prone to their development than others; 4) mucositis can be solved only with the non-surgical removal and disinfection of factors, while in peri-implantitis surgical therapy is used where the affected sites do not respond to primary therapy; and 5) supportive therapy is essential in determining the long-term success in the treatment of peri-implant diseases.

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Os implantes osseointegrados vêm sendo utilizados com grande frequência na prática odontológica, mostrando uma alta taxa de sucesso. No entanto, atreladas a essa alta previsibilidade de sucesso, estão as suas complicações. Dentre elas está a peri-implantite, que se apresenta como uma infecção microbiana que compromete os tecidos peri-implantares, afetando tecidos moles e duros, levando à reabsorção óssea e consequentemente à perda do implante. Várias modalidades de tratamento têm sido propostas para a peri-implantite, no entanto, não existe ainda na literatura um protocolo bem definido. Sendo assim, o objetivo do presente artigo é fazer uma revisão da literatura acerca do estado atual da peri-implantite, no que diz respeito à etiologia, prevenção e tratamento dessa patologia peri-implantar (AU).

Osseointegrated implants are being used with great frequency in dentistry practice, showing a high success rate. However linked to this high success predictability are its complications. Among them is periimplantitis, that is presented as a microbial infection which affects the peri-implant tissues affecting soft and hard tissues, leading to bone resorption and therefore to implant loss. Many treatment modalities have been proposed to periimplantitis, however, until now, it does not exist a well-defined protocol in literature. Thus the purpose of this article is to review the literature about periimplantitis current status, regarding the etiology, prevention and treatment of this peri-implant disease (AU).

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O objetivo do presente estudo foi analisar os níveis de IL-1ß, IL-4, IL-6, IL-10, IL-17A, IL-17F, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, IFN-γ, sCD40L e TNF-α no fluido peri-implantar de mucosite em pacientes sem perda óssea alveolar e compará-los com os níveis na mucosite de pacientes com peri-implantite e de pacientes com periodontite. Trinta e três pacientes foram divididos em três grupos: (1) Mucosite peri-implantar (idade média 59,8±7,5, seis mulheres e quatro homens), (2) Peri-implantite (idade média 59,9±3,8, nove mulheres e cinco homens) e (3) Periodontite (idade média 66,7±8,8, cinco mulheres e quatro homens). Os parâmetros clínicos avaliados foram: profundidade de bolsa (PB), nível de inserção clínica (NIC), índice de placa e sangramento à sondagem. Em cada paciente foi realizada a coleta do fluido peri-implantar com pontas de papel absorvente pré-fabricadas. No grupo 1, foram coletados de sítios com mucosite (perda óssea ao redor dos implantes não atingindo a primeira rosca); no grupo 2, foram coletados sítios de mucosite e de peri-implantite (perda óssea de duas ou mais roscas do implante); no grupo 3, foram coletados de sítios com mucosite e com periodontite (PB ≥ 5mm e NIC ≥ 3mm). As amostras foram submetidas à análise imunológica e os níveis de citocinas foram mensurados através do ensaio multiplex com microesferas. Os resultados das características clínicas de boca toda demonstraram que a PB média do grupo 1 (2,0mm±0,1) foi significativamente menor quando comparado com o grupo 2 (2,6mm±0,4) e ao grupo 3 (2,5mm±0,3), com p<0,001 e p=0,01 respectivamente. Quanto ao NIC e a presença de placa, não houve diferença significativa entre os grupos. Avaliando as características clínicas peri-implantares dos sítios com mucosite peri-implantar dos três grupos, estes foram semelhantes, exceto pelo fato do percentual de sangramento no grupo 1 ser significativamente menor do que no grupo 3 (p=0,05). Ao comparar os níveis de citocinas nos sítios com mucosite dos três grupos, não houve diferença significativa. No grupo 2, ao comparar os níveis de citocinas nos sítios inflamados com mucosite e peri-implantite, a única citocina que apresentou diferença significativa foi a IL-21, sendo maior nos sítios com mucosite (p=0,04). No grupo 3, não foram observadas diferenças significativas entre os sítios com mucosite e sítios com periodontite. Assim, com base nos resultados obtidos, pôde-se concluir que os níveis de citocinas relacionadas à resposta Th17 no fluido peri-implantar de mucosite em pacientes sem perda óssea alveolar não apresentaram diferenças significantes daqueles na mucosite de pacientes com peri-implantite e de pacientes com periodontite.

This study aimed to analyse the levels of IL-1ß, IL-4, IL-6, IL-10, IL-17A, IL-17F, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, IFN-γ, sCD40L, and TNF-α in peri-implant fluid from mucositis in patients without alveolar bone loss and to compare with the levels of mucositis from in peri-implantitis patients and with mucositis from periodontitis patients. Thirty three patients were divided in three groups: (1) Peri-implant Mucositis (average age 59.8 ± 7.5, six women and four men), (2) Peri-implantitis (average age 59.9 ± 3.8, nine women and five men) and (3) Periodontitis (average age 66.7 ± 8.8, five women and four men). The following clinical parameters were evaluated: probing depth (PD), clinical attachment level (CAL), visible plaque index and bleeding on probing. Peri-implant fluid was collected in each patient using pre-fabricated absorbent paper. In group 1, fluid was collected from mucositis sites (bone loss around the implant did not reach the first thread); in group 2, it was collected from mucositis sites and from peri-implantitis sites (bone loss involving two or more threads of the implant); in group 3, is was collected from mucositis sites and also from periodontitis sites (PD ≥ 5mm and CAL ≥ 3mm). Cytokines level were measured by a bead-based multiplex assay. Regarding full-mouth periodontal parameters, the mean PD of group 1 (2.0 mm ± 0.1) was significantly decreases when compared to group 2 (2.6 mm ± 0.4) and to group 3 (2.5 mm ± 0.3), with p<0.001 and p=0.01 respectively. CAL and visible plaque index did present no significant difference among the groups. Regarding the peri-implant clinical characteristics, it was found that peri-implant mucositis were similar, except for the significantly decreased bleeding on probing in group 1 in comparison with that in group 3 (p=0.05). When comparing the levels of cytokines in sites with peri-implant mucositis, there was no significant difference among them. In group 2, the levels of cytokines IL-21 was higher in sites with peri-implant mucositis when compared with peri-impantitis (p=0.04). In group 3, there were no significant differences between sites with mucositis sites and sites with periodontitis. Thus, based on these results, we can conclude that the levels of cytokines related to Th17 response in the peri-implant fluid from mucositis in patients without alveolar bone loss showed no significant differences in comparison to those from mucositis in patients with peri-implantitis and patients with periodontitis.

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Tem sido demonstrado que o desenvolvimento da mucosite peri-implantar está associado ao acúmulo de biofilme dentário. Acredita-se que as abordagens terapêuticas utilizadas nas doenças periodontais podem apresentar efeito positivo nos casos de doenças peri-implantares. O objetivo desse estudo foi avaliar a eficácia do tratamento não cirúrgico da mucosite peri-implantar em 119 implantes, sendo 61 no grupo teste (digluconato de clorexidina a 0,12%) e 58 no grupo controle (placebo), em indivíduos reabilitados com implantes. Desta forma, os pacientes foram divididos aleatoriamente em grupo teste (terapia não cirúrgica + clorexidina) e controle (terapia não cirúrgica). Esta terapia consistiu de uma adaptação do protocolo não-cirúrgico FMSRP (Full Mouth Scalling and Root Planing), porém, sem a utilização do ultrassom. Os parâmetros clínicos índice de placa visível (IPV), índice de sangramento gengival (ISG), profundidade de sondagem (PS), sangramento à sondagem (SS) e mucosa queratinizada foram avaliados no baseline e em diferentes períodos após o tratamento. Os dados não apresentaram distribuição normal e o implante foi considerado a unidade amostral. Os dados foram analisados por meio dos testes de Friedman, Wilcoxon e Qui-quadrado (=5%), utilizando o Statistical Package for Social Sciences 17.0 (SPSS). Os resultados mostraram que houve diferença estatisticamente significativa (p<0,05) para as variáveis: média do IPV dos implantes em ambos os grupos; média do ISG dos implantes tanto no grupo teste, como controle dos implantes; PS para o grupo teste e controle e SS dentro dos dois grupos de tratamento. No entanto, não houve diferença estatisticamente significativa quando os grupos foram comparados. As variáveis PS e SS não mostraram diferença estatisticamente significativa com nenhuma variável independente de interesse para este estudo (idade, sexo, fumo, grupo de tratamento, mucosa ceratinizada nos diferentes tempos, biótipo peri-implantar, média do IPV e ISG nos implantes). Desta forma, pode-se concluir que tanto a terapia mecânica isolada como sua associação com bochechos de digluconato de clorexidina a 0,12% podem ser usados para o tratamento da mucosite periimplantar. Além disso, a condição de higiene bucal melhorou entre o baseline e seis meses e a profundidade e sangramento à sondagem reduziram após três e seis meses. (AU)

It has been shown that the development of peri-implant mucositis is associated with biofilm accumulation. It is believed that the therapeutic approaches used in periodontal disease may have a positive effect in the cases of peri-implant disease. The aim of this study was to evaluate the effectiveness of non-surgical treatment of peri-implant mucositis, with or without the use of chlorhexidine 0,12% in subjects rehabilitated with osseointegrated implants. Thus, patients were randomly divided into test group (chlorhexidine surgical therapy) and control (non-surgical treatment). This therapy consisted of an adaptation of the (Full Mouth scalling and Root Planing) nonoperative protocol FMSRP, but without the use of ultrasound. The visible plaque index (VPI), gingival bleeding index (GBI), probing depth (PD), bleeding on probing (BOP) and keratinized mucosa clinical parameters were evaluated at baseline and at different times after treatment. The data were not normally distributed and the implant was considered the sampling unit. Data were analyzed using Friedman and Wilcoxon chi-square (=5%), tests using the Statistical Package for Social Sciences 17.0 (SPSS). Thus, 119 implants were evaluated, 61 in the test group and 58 in the control group. The results showed statistically significant differences for the variables: average BTI implants in both groups (p<0,001), mean ISG implants both in the test group (p<0,001), and control (p= 0,006) of implants; PS for the test group (p< 0,001) and control (p = 0,015) and SS (p<0,001) in the two treatment groups. However, there was no statistically significant difference when the groups were compared. The PS and SS variables showed no statistically significant difference in any of independent interest to the study (age, sex, smoking, treatment group, keratinized mucosa at different times, peri-implant biotype, average VPI implants and GBI). Thus, it can be concluded that both the mechanical treatment isolated as its association with chlorhexidine mouthwash 0.12% can be used for the treatment of peri-implant mucositis. Moreover, the condition of oral hygiene has improved between baseline and six months and the depth and bleeding on probing decreased after three and six months. (AU)

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