Concern about the risk of aerosol contamination from ultrasonic scaler: a systematic review and meta-analysis.

BACKGROUND: Many instruments used in dentistry are rotary, such as handpieces, water syringes, and ultrasonic scalers that produce aerosols. The spray created by these instruments can carry, in addition to water, droplets of saliva, blood, and microorganisms, which can pose a risk of infections for healthcare professionals and patients. Due to the COVID-19 pandemic, this gained attention. OBJECTIVE: The aim was to carry out a systematic review of the evidence of the scope of the aerosol produced by ultrasonic scaler in environmental contamination and the influence of the use of intraoral suction reduction devices. DESIGN: Scientific literature was searched until June 19, 2021 in 6 databases: Pubmed, EMBASE, Web of science, Scopus, Virtual Health Library and Cochrane Library, without restrictions on language or publication date. Studies that evaluated the range of the aerosol produced by ultrasonic scaler during scaling/prophylaxis and the control of environmental contamination generated by it with the use of low (LVE) and high (HVE) volume evacuation systems were included. RESULTS: Of the 1893 potentially relevant articles, 5 of which were randomized controlled trials (RCTs). The meta-analysis of 3 RCTs showed that, even at different distances from the patient's oral cavity, there was a significant increase in airborne bacteria in the dental environment with the use of ultrasonic scaler. In contrast, when meta-analysis compared the use of HVE with LVE, there was no significant difference (P = 0.40/CI -0.71[-2.37, 0.95]) for aerosol produced in the environment. CONCLUSIONS: There is an increase in the concentration of bioaerosol in the dental environment during the use of ultrasonic scaler in scaling/prophylaxis, reaching up to 2 m away from the patient's mouth and the use of LVE, HVE or a combination of different devices, can be effective in reducing air contamination in the dental environment, with no important difference between different types of suction devices.

Systematic review of the effect of probiotics on experimental gingivitis in humans.

Probiotic therapy is a viable alternative to chlorhexidine, a widely used antiseptic in dentistry that produces significant adverse effects. This systematic review aimed to analyze the effects of probiotics on experimental gingivitis in humans. Two independent reviewers conducted a comprehensive literature search until March 2019. Randomized clinical trials and controlled clinical trials were selected. Outcome data were extracted and critically analyzed. A total of five articles were included in the qualitative synthesis. No meta-analysis could be conducted due to the heterogeneity of the selected studies. The use of probiotics showed a slight improvement in clinical parameters. Changes in gingival crevicular fluid volume were lower in the presence of the probiotic than in the placebo group. All the studies showed that the immediate, positive effects of probiotics during the period of discontinued mechanical oral hygiene were due to the modulation of the host response, not the anti-plaque effect. Investigators should conduct randomized clinical trials to elucidate the mechanisms of probiotic action and develop improved delivery systems.

Fear or Humour in anti-smoking campaigns? Impact on perceived effectiveness and support for tobacco control Policies / Medo ou Humor em campanhas antitabágicas? O impacto na perceção de eficácia e apoio a políticas antitabágicas

Abstract Several anti-smoking campaigns have been used for decades to reduce smoking consumption. However, so far, there is no consensus regarding the effectiveness of inducing distinct emotions in reducing smoke consumption. This study tested the effects of two types of anti-smoking ads, inducing fear or humor, on emotions, perceived effectiveness, support for tobacco control policies, urges to smoke, and susceptibility to smoke. Participants (N = 108; 54 smokers) of both genders were randomly assigned to one of the two following emotion ads condition: fear (N = 52) or humor (N = 56). During exposure, the continuous flow of their emotions by self-report and physiologically was collected. Measures of ads impact on emotions, perceived effectiveness, urges and susceptibility to smoking, and support for tobacco policies were applied after exposure. The results have shown that fear ads were perceived as more effective and reduced the urges to smoke in smokers. Non-smokers were more supportive of tobacco control policies. In conclusion, this study showed that fear campaigns can reduce the urge to smoke among smokers and are perceived to be more effective. This perceived effectiveness can be partially explained by feelings of fear, regardless the other emotions it also triggers, and of the smoking status.

Resumo Várias campanhas antitabágicas são usadas para reduzir o consumo de tabaco. No entanto, até ao momento não existe um consenso sobre a eficácia da indução de emoções específicas nestas campanhas. Este estudo testou os efeitos de dois tipos de campanhas antitabágicas, induzindo Medo ou Humor, nas emoções, na perceção de eficácia das campanhas, no apoio a políticas antitabágicas, no desejo de fumar, e na suscetibilidade para fumar. Os participantes (N = 108; 54 fumadores), de ambos os sexos, foram aleatoriamente distribuídos para uma das seguintes campanhas indutoras de emoções: medo (N = 52) ou humor (N = 56). Durante a exposição, registou-se o fluxo contínuo das emoções autorreportadas e as respostas fisiológicas. Após a exposição avaliou-se o impacto das campanhas nas emoções, na perceção de eficácia, nas políticas antitabágicas, no desejo e na suscetibilidade para fumar. Os resultados evidenciaram que as campanhas indutoras de medo foram percecionadas como mais eficazes e reduziram o desejo de fumar em fumadores. Políticas antitabágicas foram mais apoiadas por não fumadores. Futuramente deverá considerar-se que induzir diferentes emoções em campanhas antitabágicas pode ter efeitos distintos a nível afetivo e cognitivo, com possível relevância para a mudança comportamental.

Fear or Humour in anti-smoking campaigns? Impact on perceived effectiveness and support for tobacco control Policies.

Several anti-smoking campaigns have been used for decades to reduce smoking consumption. However, so far, there is no consensus regarding the effectiveness of inducing distinct emotions in reducing smoke consumption. This study tested the effects of two types of anti-smoking ads, inducing fear or humor, on emotions, perceived effectiveness, support for tobacco control policies, urges to smoke, and susceptibility to smoke. Participants (N = 108; 54 smokers) of both genders were randomly assigned to one of the two following emotion ads condition: fear (N = 52) or humor (N = 56). During exposure, the continuous flow of their emotions by self-report and physiologically was collected. Measures of ads impact on emotions, perceived effectiveness, urges and susceptibility to smoking, and support for tobacco policies were applied after exposure. The results have shown that fear ads were perceived as more effective and reduced the urges to smoke in smokers. Non-smokers were more supportive of tobacco control policies. In conclusion, this study showed that fear campaigns can reduce the urge to smoke among smokers and are perceived to be more effective. This perceived effectiveness can be partially explained by feelings of fear, regardless the other emotions it also triggers, and of the smoking status.

Dental implants in Sjögren's syndrome patients: A systematic review.

OBJECTIVES: The Sjögren's syndrome (SS) is a chronic autoimmune disease that affects salivation and consequently the health of oral tissues. The aim of this systematic review was to investigate the implant survival rate, marginal bone loss (MBL) and biological complications of dental implants in SS patients. MATERIALS AND METHODS: Eligibility criteria included prospective and retrospective cohort studies, controlled clinical trials, and randomized clinical trials (RCTs). An electronic search without date or language restrictions was carried out in MEDLINE, Cochrane, Web of Science, and LILACS until June 2017. In addition, manual search and in the grey literature were also conducted. The search process, data analysis, and quality assessment were performed by two independent reviewing authors. The protocol of this systematic review was registered in PROSPERO under number CRD42016053277. RESULTS: The search and selection process yielded 6 studies, published between 1997 and 2016. An average of 93.7% survival in a mean period of 3.97 years of follow-up was observed. A low number of MBL and biological complications were reported by the studies. All the studies analyzed observed an improvement in life quality of subjects with SS and rehabilitated through dental implants. CONCLUSIONS: With the limitations of this review and based on the available data, the dental implant therapy in SS patients seems to present high implant survival rate, low MBL and low biological complications. In addition, all included studies observed an increase in the quality of life of SS patients who were rehabilitated through dental implants.

[Children's attitudes regarding health care and perception of pain: the mediating role of medical fears]. / Atitudes infantis face aos cuidados de saúde e perceção de dor: papel mediador dos medos médicos.

This study sought to contribute to a better understanding of children's attitudes and opinions regarding health care, mainly in terms of medical procedures, institutions and the efficacy of health professionals. The sample included 381 children, recruited from different schools in Lisbon. The more negative attitudes were attributed to institutions, while positive attitudes were related to the efficacy of health professionals. Medical procedures were considered less painful compared to potential day-to-day accidents. Higher levels of pain were reported by children of the female sex and by children during the primary education phase. Medical fears mediated the relationship between the perception of pain and children's attitudes with respect to health care. Higher levels of pain perception were seen to be related to more negative attitudes regarding health care. However, this relationship was diminished when children's fears about medical issues were contemplated. In conclusion, a translated instrument to assess children's attitudes regarding health care is needed, as it may even contribute to the development of intervention programs within the scope of the promotion of attitudes towards health care.

Atitudes infantis face aos cuidados de saúde e perceção de dor: papel mediador dos medos médicos / Children's attitudes regarding health care and perception of pain: the mediating role of medical fears

O presente estudo pretende contribuir para a compreensão das atitudes e opiniões das crianças acerca dos cuidados de saúde, com enfoque nos procedimentos médicos, instituições e eficácia dos profissionais. Participaram no estudo 381 crianças, recrutadas em diversas instituições escolares da área de Lisboa. As atitudes mais negativas foram atribuídas às instituições, enquanto as mais positivas incidiram na eficácia dos profissionais. Os procedimentos médicos foram considerados menos dolorosos comparativamente aos potenciais acidentes do quotidiano. Os níveis mais elevados de dor percebida foram reportados pelas crianças do sexo feminino e pelas do 1º ciclo de escolaridade. Os medos médicos mediaram significativamente a relação entre a perceção de dor e as atitudes infantis face aos cuidados de saúde. A maior perceção de dor mostrou estar associada a atitudes mais negativas, porém, esta relação ficou enfraquecida quando contemplados os medos infantis face a temáticas médicas. Em suma, é fundamental poder avaliar as atitudes infantis face aos cuidados de saúde, o que poderá contribuir para o desenvolvimento de programas de intervenção no âmbito da promoção de comportamentos.

This study sought to contribute to a better understanding of children's attitudes and opinions regarding health care, mainly in terms of medical procedures, institutions and the efficacy of health professionals. The sample included 381 children, recruited from different schools in Lisbon. The more negative attitudes were attributed to institutions, while positive attitudes were related to the efficacy of health professionals. Medical procedures were considered less painful compared to potential day-to-day accidents. Higher levels of pain were reported by children of the female sex and by children during the primary education phase. Medical fears mediated the relationship between the perception of pain and children's attitudes with respect to health care. Higher levels of pain perception were seen to be related to more negative attitudes regarding health care. However, this relationship was diminished when children's fears about medical issues were contemplated. In conclusion, a translated instrument to assess children's attitudes regarding health care is needed, as it may even contribute to the development of intervention programs within the scope of the promotion of attitudes towards health care.