Preclinical motor chunking and fine motor skill learning in fixed prosthodontics: Contribution of 3D printing and satisfaction of dental students.

INTRODUCTION: In fixed prosthodontics, simulators are essential to students for a progressive transition from preclinical to clinical condition. With the 3D printing technology, we developed resin bars allowing students to better visualise by motor chunking technique. Main objectives of this work were to describe this teaching methodology used in preclinic among different promotions of second, third and fourth dental years and to evaluate students' feedback. MATERIALS AND METHODS: Two hundred seventy resin strips were digitally designed and printed in resin. All participants from second, third and fourth had to fulfil a User Experience Questionnaire (UEQ) after the preclinical work. The scales of this questionnaire covered the complete impression of the user experience. Both classical aspects of usability (efficiency, insight and reliability) and aspects of user experience (originality, stimulation) were measured. RESULTS: For the second dental years, 'Attractiveness', 'Stimulation' and 'Novelty' were considered 'Excellent'. For the third dental year, novelty average was considered as 'Excellent'. For the fourth dental year, 'novelty' was considered as 'Good'. DISCUSSION: The resin plates used in this study are original and stimulating for the students, especially for the second-year dental students who found the exercises useful for their learning. This method can also be used by creating scenarios close to the clinical situations encountered in dentistry departments (more dilapidated teeth, preparation of inlays, post and core, etc.). This 3D printed simulation model is not intended to replace the Frasaco® models but is a complement to the learning process.

Concordance of judgement: A tool to foster the development of professionalism in dentistry.

INTRODUCTION: Developing professionalism notably involves learning how to make professional judgements in ambiguous situations. The Concordance of Judgement Test (CJT) is a learning tool that was proposed to develop professionalism competencies, but it was never performed in dentistry or used with a synchronous methodology. The present study evaluated the feasibility of the use of CJT in the context of dental education, to foster professionalism and stimulate reflexivity and discussion. MATERIALS AND METHODS: After different steps of optimization, a questionnaire presenting 12 vignettes was submitted to 33 Canadian students. Second, after an additional optimization, a questionnaire of 7 vignettes was submitted to 87 French students. An immediate educational feedback was proposed after each vignette to promote reflexivity and discussions during the experience. RESULTS: The overall experience of the students was reported as good, thanks to the feedback of real-life situations. This promoted reflexivity and stimulated discussion between students and educators regarding professionalism issues. The students considered CJT as a relevant and well-adapted tool, and reported positive feelings regarding the inter-university aspect of the activity. The mean score of the panel members was close to 80/100 and the mean score of the students was 5 to 10 points lower, which is in agreement with docimological performance. CONCLUSION: The results suggested that the use of CJT in a synchronous way was a feasible and relevant tool to motivate the students to improve their professionalism, and to stimulate their reflexivity and discussion. The students reported positive experience with CJT, and we believe that this tool can be integrated in the dental curriculum.

The pedagogical value of parallel charts for dental students in clinical education: A qualitative study.

INTRODUCTION: Narrative medicine is a novel approach aimed at attending to the socio-emotional aspects of illness and care. Parallel charts represent one of the tools of narrative medicine and are brief accounts of care in which practitioners can express their feelings and emotions towards patients and treatments. They are, therefore, intended to collect practitioners' feedback in the form of "narrative" tools to encourage reflection. MATERIALS AND METHODS: This is a single-centre observational pilot study comprising the setting up and analysis of parallel charts in two classes of 5th and 6th year students in a Paediatric Dentistry Department in France. Forty-four students completed 126 parallel charts. A qualitative, thematic, analysis was conducted and the charts were also classified according to the three types of description of illness made by Arthur Kleinman. RESULTS: This work showed that dental students mainly compiled parallel charts from a disease-centred perspective. The qualitative analysis identified the various themes addressed by the student: relationship with patients and managing children's anxiety, student stress, relationship with the environment or with lecturers. CONCLUSION: The qualitative analysis highlighted the usefulness of compiling parallel charts by the students to allow them to express both positive and negative feelings, and thus to adopt a self-evaluative approach regarding their practices based on emotional impact. Parallel charts may improve patient-practitioner relationship, but more extensive studies over longer periods of time need to be undertaken.

Dental public health: Context, challenges, and perspectives / « Santé Publique Orale ¼ : contexte, enjeux et perspectives

The discipline of "dental public health" derives its epistemological legitimacy from the unique position of dental surgeons within the realm of health care. It serves as a crucial bridge between the domain of public health and the field of dental science. The development of "dental public health" holds a twofold significance. First, it acknowledges and assesses the evolving landscape of public health, societal changes, determinants of overall health, environmental challenges, and global concerns. Its purpose is to guide policy decisions, education, research, and dental practices toward the greater good, ensuring equitable access to care and fostering technical and social innovation. Second, "dental public health" has the potential to contribute to the broader health care domain by transferring the diverse insights gained from dental surgery and its historical context. The independence of dental surgery, while sometimes posing challenges to interdisciplinary collaboration, also offers opportunities for progress through innovative solutions. In an era of patient partnerships and a growing emphasis on equality, diversity, and inclusion, it is imperative to consider the inclusion of patient representatives within the "dental public health" community. This inclusion can further enhance the discipline's capacity to address contemporary health care challenges effectively.

La « santé publique orale ¼ est une discipline qui tire sa légitimité épistémologique de la place très particulière du dentiste dans le champ de la santé. Elle agit comme une charnière entre la santé publique et les sciences odontologiques. La pertinence du développement d'une « santé publique orale ¼ est bidirectionnelle. D'un côté, la « santé publique orale ¼ prend la mesure des évolutions sanitaires et sociétales, des déterminants de santé générale, des enjeux climatiques et planétaires, afin d'orienter les décisions politiques, la formation, la recherche et les pratiques odontologiques dans des directions favorisant le bien commun, l'équité dans l'accès aux soins et les innovations techniques et sociales. D'un autre côté, la « santé publique orale ¼ peut enrichir le domaine de la santé en général, en transférant les contributions diverses issues de la chirurgie dentaire et de ses spécificités historiques. Ainsi, l'indépendance de la chirurgie dentaire est à la fois un obstacle à la collaboration interdisciplinaire mais aussi un moyen de progresser grâce aux solutions nécessaires pour la transcender. Ajoutons qu'à l'heure des patients-partenaires et de la diffusion des enjeux d'équité, de diversité et d'inclusion, il est temps de considérer les représentants de patients comme faisant partie des acteurs de la « santé publique orale ¼.

Towards planetary oral health / Vers une santé orale planétaire

It is time to consider the protection of our environment as a major public health issue in oral medicine. Evidence shows that activities related to dental practice, such as patient transportation, use of rare materials and chemicals, or energy consumption, affect our ecosystems and contribute to the global degradation we are increasingly observing. The degradation of our environment is considered the greatest threat to our health. Exposure of oral tissues to multiple environmental factors can lead to pathological conditions. In addition to these direct effects, there are more complex phenomena, leading to co-deficits in the health of populations. The example of the sugar industry illustrates the systemic failures resulting in the double degradation of the environment and the health of individuals. Face with these dynamically interacting phenomena, human communities must consider systemic responses such as those described in this article. The dental community will need to do its part and consider global oral health as a central issue. This conceptual work will help define the innovations and action needed to ensure equitable practice that respects planetary limits.

Il est temps de considérer la protection de notre environnement comme un enjeu majeur de santé publique en médecine bucco-dentaire. Des données probantes montrent en effet que les activités liées à la pratique dentaire, comme le transport de patients, l'utilisation de matériaux rares, de produits chimiques, ou la consommation énergétique, affectent nos écosystèmes et contribuent aux dégradations planétaires que nous observons de plus en plus. Par rétroaction, la dégradation de notre environnement est considérée comme la plus grande menace pour notre santé. L'exposition des tissus de la sphère orale à de multiples facteurs environnementaux peut en effet conduire à des états pathologiques. À ces effets directs s'ajoutent des phénomènes plus complexes, induisant des co-déficits sur la santé des populations. L'exemple de l'industrie du sucre illustre les défaillances systémiques menant à la double dégradation de l'environnement et de la santé des individus. À ces phénomènes en interaction dynamique, les communautés humaines doivent envisager des réponses systémiques comme celles que nous décrivons dans cet article. La communauté dentaire devra faire sa juste part et considérer la santé orale planétaire comme un enjeu central. Ce travail conceptuel permettra de définir les innovations nécessaires et les actions adaptées pour garantir une pratique équitable et respectueuse des limites planétaires.

The Hôtel-Dieu Saint-Jacques of Toulouse: Oldest Dental Site still in Activity?

The Hôtel-Dieu Saint-Jacques of Toulouse (in Southwest France) is an ancient hospital officially existing since the 16th century and initially dedicated to the treatment of the poor and the destitute. In the 18th century, it became a hospital in the "modern" sense of the word, by maintaining health and trying to cure diseases. The first official traces of professional dental care in the Hôtel-Dieu Saint-Jacques by a dental surgeon date from 1780. From this period, the Hôtel-Dieu Saint-Jacques had a dentist to treat "paupers" in the early years. The first "officially" recorded dentist was named Pierre Delga, known for having treated the French Queen Marie-Antoinette for a difficult extraction. Delga also provided dental care to the famous French writer and philosopher Voltaire. The aim of this article is to relate the history of this hospital along with French dentistry, and to advance the hypothesis that the Hôtel-Dieu Saint-Jacques, now a hospital site of the Toulouse University Hospital, is probably the oldest building in Europe still in activity and still hosting a dentistry department.

What do we know about portable dental services? A scoping review.

BACKGROUND: Delivering dental care to patients in their home or residential institutions is known as "portable dentistry". The demand for portable dental services is on the rise, but dentists remain reluctant to adopt portable practices. OBJECTIVES: To explore the literature on portable dental services and understand (a) the process of planning and delivering portable dental services and (b) the benefits and challenges of portable dentistry for service providers and patients. METHODS: A systematic scoping search was conducted. We retrieved 3994 documents, 28 of which were included in the final synthesis. Three authors read the papers and conducted thematic content analyses independently. RESULTS: We present a synthesis of the literature and proposed a model of portable dentistry containing three levels with the patient is at the centre surrounded by concentric rings representing the dentist (dental team) and society. At each of these levels, our model is further subdivided into three components: 1) organisation of the service; 2) arrival and set-up of the service; and 3) delivery of the service. In addition, each level includes 1) human factors, which are related either to the dental professional or the patient; 2) non-human factors, which refer to either the equipment or the physical environment; and 3) financial factors, which are related to cost and remuneration. CONCLUSIONS: We propose a model for portable dentistry that dentists and dental educators interested in this practice should find useful.

Relationship between internet research data of oral neoplasms and public health programs in the European Union.

BACKGROUND: Tobacco and alcohol are the main risk factors for oral squamous cell carcinoma, the low survival rate of which is a public health problem. European-wide health policies (a prevention campaign, tobacco packaging) have been put in place to inform the population of the risks associated with consumption. Due to the increase in smoking among women, the incidence of this disease remains high. The identification of internet research data on the population could help to measure the impact of and better position these preventive measures. The objective was to analyze a potential temporal association between public health programs and interest in oral cancers on the internet in the European Union (EU). METHODS: A search of data from Google ©, Wikipedia © and Twitter © users in 28 European countries relating to oral cancer between 2004 and 2019 was completed. Bibliometric analysis of press and scientific articles over the same period was also performed. The association between these data and the introduction of public health programs in Europe was studied. RESULTS: There was a temporal association between changes in tobacco packaging and a significant increase in internet searches for oral cancer in seven countries. Unlike national policies and ad campaigns, the European awareness program Make Sense has had no influence on internet research. There was an asymmetric correlation in internet searches between publications on oral cancer from scientific articles or "traditional" media (weak association) and those from internet media such as Twitter © or Wikipedia © (strong association). CONCLUSION: Our work highlights seven areas around which oral cancer awareness in Europe could be refocused, such as a change in the communication of health warnings on cigarette packs, the establishment of a more explicit campaign name regarding oral cancer, the involvement of public figures and associations in initiatives to be organized at the local level and the strengthening of awareness of the dangers of tobacco in the development of oral cancer.

Prevalence of sensitive teeth and associated factors: a multicentre, cross-sectional questionnaire survey in France.

BACKGROUND: As far as we know, little data, whether obtained from self-administered questionnaires or upon dental clinical examination, has been published on the prevalence of sensitive teeth (ST) in the French adult population. The objectives of the present work were to estimate ST prevalence and characteristics in the general population of France and to explore the associated factors. METHOD: A multicentre cross-sectional study was conducted between November 2011 and March 2013 in six French cities. Adult passers-by in public places were invited to answer an electronic questionnaire on a tablet computer. Only people who declared having at least one natural tooth were included in the study. A logistic regression model was used for the multivariate analysis. RESULTS: The prevalence of ST during the previous 12 months reported by the sample of 2413 participants was 42.2% [95% CI: 40.2-44.1%]. The final logistic regression model showed significant statistical associations between ST and female gender, use of tobacco, consumption of soft drinks, limited access to oral care and poor oral hygiene habits (p < 0.05). CONCLUSIONS: This study provides prevalence data on ST in a general population in France, which seems to remain high despite the existence of many therapies. It should alert professionals to a clinical manifestation that is becoming increasingly prevalent and that they will have to take into consideration to help reduce the discomfort arising from it.

Comparison of student's perceptions between 3D printed models versus series models in paediatric dentistry hands-on session.

INTRODUCTION: Dental education emphasises the acquisition of technical skills. Recent advances in 3D printing technologies have enabled the emergence of new educational tools usable in hands-on work sessions. The possibility to print 3D models from CT scans of patients is now available to dental practitioners. The aim of this study was to develop and evaluate a 3D printed model for paediatric dentistry training and compare it to the reference model used in our faculty. MATERIALS AND METHOD: 3D models were obtained by modifying and printing the CT scan of a young patient using the Voco® Solflex 350 3D® printer and Voco® V-print resin. Thirty-four students were asked to perform a pulpotomy and preparation for a stainless steel paediatric crown on tooth 85 on both the 3D printed model and the industrial model (Frasaco®), and then to answer a questionnaire. The data were analysed using R software. RESULT: Both models obtained high scores. The learning potential and its applicability to clinical practice showed no statistically significant difference. Although the colour and the simulation of the proximal area disturbed the students (P = 0.009), the 3D models were seen as a good idea (P = 0.012). When it came to model design, the students appreciated the simulation of caries on 3D models (P = 0.0001) and considered the use 3D of models as a more realistic experience (P = 0.017). DISCUSSION: Although this study has some limitations (number of participants, choice of the models to be compared), it constitutes the first attempt to compare students' perception of 3D and series models. It shows that 3D technology makes it possible to obtain models of similar quality while offering a more realistic experience. CONCLUSION: There are still many ways in which these models could be improved. For example, modifying the quality of resins could improve the milling sensation, and the design could be improved to achieve better contact points. Nevertheless, these 3D models offer the possibility to give the patient a more central place in the education of future practitioners.

The effects of periodontal treatment on diabetic patients: The DIAPERIO randomized controlled trial.

AIM: To assess whether periodontal treatment can lead to clinical, glycaemic control and quality of life improvements in metabolically unbalanced diabetic patients (type 1 or type 2) diagnosed with periodontitis. METHODS: In this open-labelled randomized controlled trial, diabetic subjects (n = 91) were given "immediate" or "delayed" periodontal treatment (full-mouth non-surgical scaling and root planing, systemic antibiotics, and oral health instructions). The main outcome was the effect on glycated haemoglobin (HbA1C ) and fructosamine levels. The General Oral Health Assessment Index and the SF-36 index were used to assess quality of life (QoL). RESULTS: Periodontal health significantly improved after periodontal treatment (p < 0.001). Periodontal treatment seemed to be safe but had no significant effects on glycaemic control based on HbA1C (adjusted mean difference with a 95% confidence interval (aMD) of 0.04 [-0.16;0.24]) and fructosamine levels (aMD 5.0 [-10.2;20.2]). There was no obvious evidence of improvement in general QoL after periodontal treatment. However, there was significant improvement in oral health-related QoL (aMD 7.0 [2.4;11.6], p = 0.003). CONCLUSION: Although periodontal treatment showed no clinical effect on glycaemic control in this trial, important data were provided to support periodontal care among diabetic patients. Periodontal treatment is safe and improves oral health-related QoL in patients living with diabetes. ISRCTN15334496.

Spatial and temporal structure of the clinical research based on mesenchymal stromal cells: A network analysis.

BACKGROUND AIMS: Using innovative tools derived from social network analysis, the aims of this study were (i) to decipher the spatial and temporal structure of the research centers network dedicated to the therapeutic uses of mesenchymal stromal cells (MSCs) and (ii) to measure the influence of fields of applications, cellular sources and industry funding on network topography. METHODS: From each trial using MSCs reported on ClinicalTrials.gov, all research centers were extracted. Networks were generated using Cytoscape 3.2.2, where each center was assimilated to a node, and one trial to an edge connecting two nodes. RESULTS: The analysis included 563 studies. An independent segregation was obvious between continents. Asian, South American and African centers were significantly more isolated than other centers. Isolated centers had fewer advanced phases (P <0.001), completed studies (P = 0.01) and industry-supported studies (P <0.001). Various thematic priorities among continents were identified: the cardiovascular, digestive and nervous system diseases were strongly studied by North America, Europe and Asia, respectively. The choice of cellular sources also affected the network topography; North America was primarily involved in bone-marrow-derived MSC research, whereas Europe and Asia dominated the use of adipose-derived MSCs. Industrial funding was the highest for North American centers (90.5%). CONCLUSIONS: Strengthening of international standards and statements with institutional, federal and industrial partners is necessary. More connections would facilitate the transfer of knowledge, sharing of resources, mobility of researchers and advancement of trials. Developing partnerships between industry and academic centers seems beneficial to the advancement of trials across different phases and would facilitate the translation of research discoveries.

Discrete Distribution Based on Compound Sum to Model Dental Caries Count Data.

Methods for analysing dental caries and associated risk indicators have evolved considerably in recent decades. The use of zero-inflated or hurdle models is increasing so as to take account of the decayed, missing, and filled teeth (DMFT) distribution, which is positively skewed and has a high proportion of zero scores. However, there is a need to develop new statistical models that involve pragmatic biological considerations on dental caries in epidemiological surveys. In this paper, we show that the zero-inflated and the hurdle models can both be expressed as a compound sum. Using the same compound sum, we then present the generalized negative binomial (GNB) distribution for dental caries count data, and provide a numerical application using the data of the EPIPAP study. The GNB model generates the best score functions while handling the lifetime dental caries disease process better. In conclusion, the GNB model suits the nature of some count data, in particular when structural zeros are unlikely to occur and when several latent spells can lead to new countable events. For these reasons, the use of the GNB distribution appears to be relevant for the modelling of dental caries count data.

Clinical research activity in periodontal medicine: a systematic mapping of trial registers.

AIM: The primary aim of the study was to systematically map registration records on periodontal medicine in clinical trial registers. The secondary aim was to assess the evolution of periodontal medicine in clinical periodontal research as a whole. MATERIAL AND METHODS: We searched all registration records related to periodontology in the World Health Organization International Clinical Trials Registry Platform. For registration records classified in the field of periodontal medicine, we assigned the 2015 MeSH(®) term for the most precisely corresponding systemic condition. RESULTS: Fifty-seven systemic conditions have been hypothesized to be linked with periodontal diseases, covering nearly 2% of the diseases indexed in MeSH. In addition to diabetes, cardiovascular disease or preterm birth, other systemic conditions have been the subject of registration records, such as anaemia, liver diseases, dyspepsia or ankylosing spondylitis. A trend towards increasing diversification of systemic conditions has appeared over time. About a third of registration records in clinical periodontal research deals with periodontal medicine. CONCLUSIONS: Periodontal medicine now constitutes an important part of clinical periodontal research. Research activity in periodontal medicine has grown continuously since the early 2000s, and exploration of registers gives a useful up-to-date snapshot of this constantly evolving field of research.

Oral health-related quality of life among outpatients with rheumatoid arthritis.

OBJECTIVES: The aims of the Oral Status And Rheumatoid Arthritis (OSARA) cross-sectional study were to study the oral health-related quality of life and to assess the associated factors in a population of outpatients with rheumatoid arthritis in France. METHODS: The data were collected by five trained and standardised dentists who asked each subject the questions of a socio-demographic, behavioural and medical questionnaire, which was completed with the medical records, and performed the dental examination. Each subject filled out two self-assessment questionnaires: the Health Assessment Questionnaire and the General Oral Health Assessment Index. RESULTS: Seventy-three subjects were included. The mean age of the participants was 60.2 ± 11.9 years and 75.3% were women. For 58.3% of the subjects, their self-perceived oral health-related quality of life was described as poor. The logistic regression analysis found that a small number of teeth and marked difficulties in dressing and grooming were associated with bad oral health-related quality of life [ORa = 10.5 (1.96-56.19) and ORa = 4.3 (1.15-15.77), respectively]. CONCLUSIONS: More care should be given to the prevention of dental diseases in order to improve the oral health-related quality of life of patients with rheumatoid arthritis and their self-esteem, which will already be heavily affected.

[Perceived oral health and use of dental services during pregnancy: the MaterniDent study]. / Santé bucco-dentaire perçue et recours aux soins pendant la grossesse : étude MaterniDent.

INTRODUCTION: The main objective of the MaterniDent study was to determine the nature and frequency of dental problems experienced by pregnant women and their associated factors. The secondary objective was to determine the frequency of dental visits during pregnancy and to identify associated factors. METHODS: The MaterniDent study was a multicenter cross-sectional study conducted among 904 postpartum women in three French maternity wards. Data were collected using self-administered questionnaires. Measured variables included socio-demographic, health and behavioral characteristics. RESULTS: 57% of women reported having experienced at least one dental problem during pregnancy, while 20% had experienced dental pain during pregnancy. Multiparity, vomiting, soda consumption and increased sugar consumption during pregnancy were significantly associated with dental pain (p<0.05). 56% of women did not visit a dentist during pregnancy, 26% consulted a dentist for a perceived problem, and 18% visited a dentist for a check-up. Younger pregnant women and those without supplemental insurance were less likely to see a dentist for a preventive dental visit (p <0.05). DISCUSSION: A significant proportion of women experienced a dental problem during pregnancy, although they did not necessarily consult a dentist to treat the problem. Given the impact of oral diseases for both mother and child, prevention and professional dental care during pregnancy should be promoted.