Meta-analysis of the efficacy of invisible orthodontic appliances for maxillary molar distalization in adult patients / 口腔疾病防治

Objective@#To evaluate the clinical efficacy of invisible orthodontic appliances without brackets for the distal movement of maxillary molars to improve the ability of orthodontists to predict treatment outcomes.@*Methods@#Web of Science, Cochrane Library, Embase, PubMed, Wanfang Database, CNKI Database, and VIP Database were searched for studies investigating the efficacy of invisible orthodontic appliances for distal movement of maxillary molars in adult patients and published from database inception to August 1, 2023. A total of three researchers screened the studies and evaluated their quality and conducted a meta-analysis of those that met quality standards.@*Results@#This study included 13 pre- and postcontrol trials with a total sample size of 281 patients. The meta-analysis revealed no significant differences in the sagittal or vertical parameters of the jawbone after treatment when compared with those before treatment (P>0.05). The displacement of the first molar was MD=-2.34, 95% CI (-2.83, -1.85); the displacement was MD=-0.95, 95% CI (-1.34, -0.56); and the inclination was MD=-2.51, 95% CI (-3.56, -1.46). There was a statistically significant difference in the change in sagittal, vertical, and axial tilt of the first molar before and after treatment. After treatment, the average adduction distance of the incisors was MD=-0.82, 95% CI (-1.54, -0.09), and the decrease in lip inclination was MD=-1.61, 95% CI (-2.86, -0.36); these values were significantly different from those before treatment (P<0.05).@*Conclusion@#Invisible orthodontic appliances can effectively move the upper molars in a distal direction and control the vertical position of the molars. When the molars move further away, there is some degree of compression and distal tilt movement, which is beneficial for patients with high angles. The sagittal movement of incisors is beneficial for improving the patient's profile.

Evaluation of scientific quality of YouTube video content related to orthodontic pain management

ABSTRACT Introduction: With the abundant use of the internet, patients undergoing or interested in orthodontic treatment try to use it to obtain information on pain during treatment. However, YouTube™ is unregulated and may potentially contain inaccurate information. Objectives: Thus, this study aimed to evaluate the scientific quality of the videos on YouTube™ related to orthodontic pain management. Methods: A total of 62 videos related to orthodontic pain management were included in the study. All videos were evaluated by two experienced orthodontists. The video uploader, content, length, upload date, time since upload, number of views, comments, likes, dislikes, Interaction index, and Viewing rate of the videos were recorded and evaluated. The videos were scored using the Quality Criteria for Consumer Health Information (DISCERN), Global Quality Scale (GQS), and Audio-Visual Quality (AVQ), and divided into two groups: Doctors and Non-doctors. Results: The mean DISCERN score was 2.56 ± 0.91, the GQS score was 2.56 ± 1.06, and AVQ was 2.48 ± 0.68. A statistically significant difference was found in DISCERN score of videos uploaded by Doctors compared to Non-doctors, but no statistically significant difference was found in GQS and AVQ scores between both groups (p> 0.05). Conclusions: The videos uploaded by Doctors were better in terms of quality and reliability, as compared to Non-doctors; and the AVQ of the videos uploaded by both groups was adequate. Despite that, both groups did not serve as a good source of information. YouTube™ cannot be considered a reliable source of information in terms of quality and reliability on videos related to orthodontic pain management.

RESUMO Introdução: Com o uso abundante da Internet, os pacientes em tratamento ortodôntico, ou interessados em fazê-lo, tentam usá-la para obter informações sobre a dor durante o tratamento. Entretanto, o YouTube™ não é regulamentado e pode conter informações imprecisas. Objetivos: Esse estudo teve como objetivo avaliar a qualidade científica de vídeos no YouTube™ relacionados ao controle da dor ortodôntica. Métodos: No total, 62 vídeos relacionados ao controle da dor ortodôntica fora incluídos nesse estudo. Todos os vídeos foram avaliados por dois ortodontistas experientes. O responsável pela postagem do vídeo, seu conteúdo, sua duração, data de postagem, tempo decorrido desde a postagem, o número de visualizações, os comentários, os likes, os deslikes, o índice de interação e a taxa de visualização dos vídeos foram registrados e avaliados. Os vídeos foram pontuados usando os Critérios de Qualidade para Informações sobre Saúde do Consumidor (DISCERN), a Escala de Qualidade Global (GQS) e a Qualidade Audiovisual (AVQ), e divididos em dois grupos: Doutores e Não Doutores. Resultados: A pontuação DISCERN média foi de 2,56 ± 0,91, a pontuação GQS foi de 2,56 ± 1,06 e a AVQ foi de 2,48 ± 0,68. Foi encontrada uma diferença estatisticamente significativa na pontuação DISCERN dos vídeos postados por Doutores, em comparação com os Não Doutores, mas não foi encontrada diferença estatisticamente significativa nas pontuações GQS e AVQ entre os dois grupos (p> 0,05). Conclusões: Os vídeos postados pelos Doutores foram melhores em termos de qualidade e confiabilidade, em comparação com os Não Doutores, e o AVQ dos vídeos postados por ambos os grupos foi adequado. Apesar disso, ambos os grupos não serviram como uma boa fonte de informações. Em termos de qualidade e confiabilidade dos vídeos relativos ao manejo da dor ortodôntica, o YouTube™ não pode ser considerado uma fonte confiável de informações.

Percepción, conocimiento y actitud hacia la ortodoncia interceptiva en odontopediatras, ortodoncistas y cirujanos dentistas en Perú

Resumen Objetivos: Comparar la percepción, conocimiento y actitud hacia la ortodoncia interceptiva en odontopediatras, ortodoncistas y cirujanos dentistas. Métodos: La muestra se conformó por 52 hombres y 56 mujeres, con una edad de 39.75 ± 9.32 años e incluyó a 36 odontopediatras, 36 ortodoncistas y 36 cirujanos dentistas. Se utilizó un cuestionario de 14 preguntas con características de validez, consistencia interna y estabilidad. El instrumento fue enviado mediante el software Survey Monkey. El análisis de datos se realizó mediante prueba de Chi Cuadrado al 5% de significancia. Resultados: Los profesionales no mostraron diferencias en la percepción y en la actitud hacia el tratamiento (p>0.05). Existió una diferencia con respecto al nivel de conocimiento sobre aspectos puntuales del tratamiento interceptativo (p<0.05). Conclusiones: Los profesionales tuvieron similares percepciones y actitudes frente al tratamiento interceptativo. Sin embargo, existió una diferencia significativa con respecto al nivel de conocimientos entre odontopediatras, ortodoncistas y cirujanos dentistas.

Resumo Objetivos: Comparar a percepção, o conhecimento e a atitude em relação à ortodontia interceptiva em odontopediatras, ortodontistas e cirurgiões-dentistas. Métodos: A amostra foi composta por 52 homens e 56 mulheres, com idade de 39,75 ± 9,32 anos e incluiu 36 odontopediatras, 36 ortodontistas e 36 cirurgiões-dentistas. Foi utilizado um questionário de 14 questões com características de validade, consistência interna e estabilidade. O instrumento foi enviado usando o software Survey Monkey. A análise dos dados foi realizada por meio do teste Qui quadrado com significância de 5%. Resultado: Os profissionais não apresentaram diferenças de percepção e atitude em relação ao tratamento (p> 0,05). Houve diferença quanto ao nível de conhecimento sobre aspectos específicos do tratamento interceptativo (p <0,05). Conclusões: Os profissionais tiveram percepções e atitudes semelhantes em relação ao tratamento interceptativo. No entanto, houve diferença significativa quanto ao nível de conhecimento entre odontopediatras, ortodontistas e cirurgiões-dentistas.

Abstract Objectives: To compare the perception, knowledge, and attitude towards interceptive orthodontics among pediatric dentists, orthodontists, and dental surgeons. Methods: The sample included 52 men and 56 women, aged 39.75 ± 9.32 years: 36 pediatric dentists, 36 orthodontists, and 36 dental surgeons. The 14-question survey administered had validity, internal consistency, and stability. Survey Monkey was used to administer the survey. The data was analyzed using the chi-square test at a 5% significance level. Results: No differences were found among professionals regarding perception and attitude towards the treatment (p > 0.05). There was a difference regarding the level of knowledge about specific aspects of interceptive treatment (p < 0.05). Conclusions The professionals had similar perceptions and attitudes towards interceptive treatment. However, there was a significant difference regarding the level of knowledge of pediatric dentists, orthodontists, and dental surgeons.

Factors associated to quality of life of orthodontists graduated from a public university (1993-2016): A mixed-methods approach

ABSTRACT Introduction: For dental professionals, including orthodontists, Quality of life (QOL) is a topic of growing concern and could be determined by objective and subjective complex factors. Objective: This study analyzed the factors that influence the QOL of orthodontists graduated between 1993 and 2016 of a public university (Medellín, Colombia). Methods: A mixed-methods study was conducted (cross-sectional survey; 88 participants; 3 focus groups, 21 participants). Quantitative analysis: the research included sociodemographic, labor and health characteristics as independent variables and the WHOQOL-BREF questionnaire as main outcome for QOL. Frequencies were calculated and the association between QOL and independent variables was estimated by bivariate analysis (Chi square tests) and a linear multivariate regression. Qualitative analysis: Narrative content analysis according to thematic categories. Mixed methods: a conceptual framework for QOL using the triangulation was developed. Results: All the scores surpassed 55 points on the 4 domains of WHOQOL-BREF. A lower value was found in the physical dimension (57.1±10.7) and a greater value in the psychological dimension (70.8±8.3). The variables associated positively to QOL were permanent contract, teaching/research activities, monthly income, resting days per week and sex. Factors associated negatively were low social support, mental health and rent housing. Discourses of participants allowed to identify the concept of QOL and the contextual and social determinants and satisfiers. Conclusion: QOL of orthodontists is influenced by sociodemographic, employment, working and health factors. Therefore, QOL is a multidimensional concept that recognizes the political and socio-economic context and personal and professional experiences.

RESUMO Introdução: Entre os profissionais da área odontológica, incluindo os ortodontistas, a Qualidade de Vida (QOL) é um tópico de interesse crescente, podendo ser determinada por meio de complexos fatores objetivos e subjetivos. Objetivo: O presente estudo analisou fatores que influenciam a QOL dos ortodontistas graduados entre 1993 e 2016 em uma universidade pública (Medelín, Colômbia). Método: Foi conduzido um estudo de metodologia mista (pesquisa transversal; 88 participantes; 3 grupos focais, 21 participantes). Análise quantitativa: foram incluídas características sociodemográficas, ocupacionais e de saúde como variáveis independentes e o questionário WHOQOL-BREF como resultado principal para QOL. As frequências foram calculadas e a associação entre QOL e as variáveis independentes foram estimadas por uma análise bivariada (teste qui-quadrado) e uma regressão linear multivariada. Análise qualitativa: análise do conteúdo narrativo de acordo com as categorias temáticas. Metodologia mista: foi desenvolvida uma estrutura conceitual para QOL utilizando a triangulação. Resultados: Todas as pontuações ultrapassaram 55 pontos nos 4 domínios do WHOQOL-BREF. Um valor mais baixo foi encontrado na dimensão física (57,1±10,7) e um valor mais alto, na dimensão psicológica (70,8±8,3). As variáveis associadas positivamente à QOL foram as seguintes: contrato permanente, atividades ensino/pesquisa, renda mensal, dias de descanso por semana e sexo. Os fatores associados negativamente foram baixo suporte social, saúde mental e morar de aluguel. O discurso dos participantes permitiu a identificação do conceito de QOL, dos determinantes contextuais e sociais, e os fatores motivacionais. Conclusão: A QOL dos ortodontistas é influenciada por fatores sociodemográficos, ocupacionais, ligados ao trabalho e à saúde. Dessa maneira, a QOL se apresenta como um conceito multidimensional, que reconhece o contexto político e socioeconômico, assim como as experiências pessoais e profissionais.

Use of orthodontic mini-screws among orthodontists in Saudi Arabia

Background: Orthodontic anchorage is a technique used to avoid undesired tooth movement. The miniature screw (mini-screw) implant is an orthodontic innovation that was introduced to circumvent the limitations of conventional anchorage systems. Mini-screws, known as temporary anchorage devices (TADs), give clinicians good control over tooth movement in 3 dimensions and can assist orthodontists in anchorage-demanding cases.Methods: A questionnaire was distributed by online survey using SurveyMonkey and on paper during orthodontic meetings in Saudi Arabia. Collected data were analyzed using SPSS statistical software (version 23, IBM). A 2-way cross-tabulation and Fisher’s exact or Pearson chi-square tests were used to evaluate statistically significant differences. A P-value < 0.05 was considered to be statistically significant.Results: Of 133 respondents, 72 (54.1%) of practitioners worked in the governmental sector and 61 (45.9%) worked in the private sector. A total of (87.3%) of practitioners in the governmental sector and (80%) of practitioners in the private sector reported using mini-screws in clinical practice. Practitioners who reported that they did not use mini-screws in clinical practice listed the following reasons: “I don’t have enough information” (33.3%), “It’s a surgeon’s job” (11.1%), “Not available in the hospital” (29.6%), and “Other” (25.9%). A total of 60.2% of practitioners loaded mini-screws immediately, 8.3% loaded them 1 week after implantation, 11.3% loaded them 2-3 weeks after implantation, and 3.8% loaded them >3 weeks after implantation. Regarding the method of placement, 63.2% of practitioners used radiography for placement guidance/confirmation, 9.8% used a self-made guide, and 8.3% did not use a guide.Conclusions: Lack of education and training are major reasons that practitioners do not use orthodontic mini-screws in Saudi Arabia. Increased efforts to organize seminars and workshops may motivate practitioners to incorporate mini-screw usage into routine practice.

Influences of buccal corridor on smile esthetics / 实用口腔医学杂志

Objective:To explore the influence of buccal corridor of Han people on smile esthetics.Methods:An attractive adult male and a adult female were selected as the models.Buccal corridor was altered digitally with slider technology of Adobe Flash CS4 to obtain a continuous range of buccal corridors(0% -25%).96 orthodontists aged 35.1 ±7.2 years and 96 laypersons aged 37.3 ± 5.1 years were chosen as the raters.The minimum tolerable value(A%),the ideal value(B%)and the maximum tolerable value (C%)of buccal corridor of the models were statistically analyzed.Results:In the orthodontist groupA,B and C of the male model were 5.00 ±0.1 7,9.75 ±2.77 and 1 5.00 ±2.84,in layperson group were 4.79 ±1 .00,9.20 ±3.08 and 1 5.05 ±2.91 ,respec-tively;in orthodontist group,A,B and C of the female model were 3.92 ±0.1 7,1 1 .87 ±2.77 and 1 5.82 ±2.84,in layperson group were 4.00 ±1 .00,1 2.05 ±3.08 and 1 5.1 1 ±2.91 ,respectively(all data between groups,P >0.05).The ideal buccal corri-dor value(%)of the male and female models were 9.48 ±2.73 and 1 1 .96 ±1 .99 respectively(P <0.05).Conclusion:There is no difference between orthodontists and laypersons for buccal corridor esthetic judgment.The ideal esthetic buccal corridor size of male and female is different.