Aim To assess changes in the craniocervical structure and in hyoid bone position in skeletal Class II subjects with and without temporomandibular disorders (TMD). Materials and Methods The cephalometric analysis of 59 subjects with skeletal Class II was evaluated and compared. The measurements considered were ANB as a parameter of Class II and C0-C1 distance, C1-C2 distance, craniocervical angle, and hyoid bone position for the cervical spine analysis. Patients were divided into patients with TMD (group A) and patients without TMD (group B). TMD were evaluated with Diagnostic Criteria for TMD (DC/TMD). Descriptive statistics and Pearson's and Spearman's correlation analysis, with p value <0,005, were performed. Results C0-C1 and C1-C2 distance values and hyoid bone position resulted within the normal range in the majority of patients examined. Craniocervical angle was altered in 33 patients. The reduction of this angle with the increase of the ANB value resulted to be statistically significant in group A, according to Pearson's correlation index. No other data were statistically significant. Conclusions The significant relationship between skeletal Class II and cervical spine cannot be highlighted. The alteration of craniocervical angle seems to be mildly present, with backward counterclockwise rotation of the head upon the neck in the sample (groups A and B). The presence of TMD as a key factor of changes in neck posture could explain the different result between the two groups about the relationship between ANB and craniocervical angle. This result should be further analyzed in order to better understand if cervical spine changes could be related to mandibular postural ones in the craniocervical space or to temporomandibular joint retropositioning, more recognizable in Class II with TMD, which could determine functional changes in other structures of this unit; neck posture could be the result of a compensatory/antalgic mechanism in response to TMD.

Background The aim of the study was to analyze the perception of dental faculties students regarding the complete transition to distance-based education (DE) and the adaptation of this educational strategy, due to Covid-19 pandemic. A questionnaire to be completed anonymously was submitted online to students attending the faculties of Dentistry and Oral Hygiene at Sapienza, University of Rome, after the end of distance lessons. The collected data were processed statistically, providing descriptive data and analysis of correlation of the most significant parameters, using Chi-squared test, Cramér V and Pearson φ2, Goodman and Kruskal’s γ and λ and Kendall’s τb. The level of statistical significance was p < 0.05. Results A total of 314 students participated in the survey. The overall level of satisfaction on a ten- point scale was 5.39 ± 2.59 for Oral Hygiene students and 6.15 ± 2.98 for Dentistry students. The most common complaints were the lack of a structured online curriculum, less interaction with professors and a lower level of attention. On the basis of the responses, scored using Likert-type Scale, oral Hygiene students reported statistically higher level of physical fatigue(p = 0.0189), a lower level of attention (p = 0.0136) and of the quality and quantity of acquired knowledge during distance education (p = 0.0392), compared to Dentistry students. Level of perceived stress and quality and quantity of acquired knowledge (γ = 0.81 and τb =0.56) and quality and quantity of acquired knowledge and fear of a decrease in knowledge (γ = 0.76 and τb =0.54) are associated variables. Conclusion Students’ feedback is essential to solve the key issues emerged from the questionnaire. New educational models should be define in order to ensure that distance education could be effective, meeting the learning needs of the students, and could not be a merely “online shift” of traditional methods, used as an alternative of live education.

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In this paper, we discuss international policy in relation to the use of health websites and we describe the results obtained from application of a search engine to the recognition and classification of health websites in Italy. We then compare the results with health websites in other countries. Effective use of technology has led to medical advances that have not only extended life expectancy, but also fuelled an increasingly well-informed public to expect more and more from today's healthcare providers. As a consequence of the Web's rapid, chaotic growth, the resulting network of information lacks organization and structure and the quest for a method of quickly finding relevant and reliable information is spawning the growth of Internet portal sites. The US and the European Union and now Italy, have established the importance of rules to check the quality of health sites both for the non-professional users (citizens), mainly for privacy and security (for example, of medical records); and for health operators (physicians and others), where the most important thing is to evaluate the quality of content. In June 2001, the search engine used here found 2627 Italian health sites, of which only 46 exhibited the HON Code, and they can be classified into: 1% personal medical sites, 17% health portals, 18%, metasites, 27% documental sites and 37% information sites for health operators and/or for citizens.