Anatomy of Maxillary Sinus: Focus on Vascularization and Underwood Septa via 3D Imaging.

The study of the maxillary sinus anatomy should consider the presence of two features of clinical importance. The arterial supply course and the presence of the so-called Underwood septa are two important factors to consider when planning surgical treatment to reduce the risk of surgical complications such as excessive bleeding and Schneiderian membrane perforations. This study aimed to investigate the above-mentioned anatomical structures to improve the management of eventual vascular and surgical complications in this area. This study included a total of 200 cone-beam computed topographies (CBCTs) divided into two groups of 100 CBCTs to evaluate the arterial supply (AAa) course through the lateral sinus wall and Underwood's septa, respectively. The main parameters considered on 3D imaging were the presence of the AAa in the antral wall, the length of the arterial pathway, the height of the maxillary bone crest, the branch sizes of the artery in the first group, and the position of the septa, the length of the septa, and their gender associations in the second group. The CBCT analysis showed the presence of the arterial supply through the bone wall in 100% of the examined patients, with an average size of 1.07 mm. With regard to the septa, 19% of patients presented variations, and no gender difference was found to be statistically significant. The findings add to the current understanding of the clinical structure of the maxillary sinus, equipping medical professionals with vital details for surgical preparation and prevention of possible complications.

Dentistry and Gender Gap: An Overview of the Italian Situation.

Recently, the issue of the gender gap in dentistry and in the leadership in the dental field has placed new challenges on dental profession representatives and politicians. Indeed, the inequity between genders in healthcare workforces represents a limit to the progression of those in the professions, inhibiting talented colleagues from accessing high positions in the academic world and not providing adequate role models to inspire future generations. The Italian population practicing dentistry in 2021 was composed of 74% males and 26% females. The aim of this study is to analyze the level of the gender gap in the dental field in Italy by focusing on the gender distribution of professional leaders in institutional category associations and invited speakers at dental conferences accredited for the Continue Education in Medicine program. The search strategy considered three different fields in the national dentistry scene: the dental committee boards, the union category associations, and the cultural field. The roles in the dental boards were retrieved from the website of the National Medical and Dental Committee from 2018 to 2022; the roles in the union category associations at the provincial, regional, and national levels were retrieved from the related web pages, considering the period from 2018 to 2021; and the information about the speakers at national conferences from 1 January 2019 to 31 December 2021 was retrieved from the National Agency for Regional Health Services (Agenzia nazionale per i servizi sanitari regionali (AGENAS)) websites. The extracted data were grouped and examined using descriptive statistics (frequency), and due to the categorical nature of the data, non-parametric tests (chi-square tests) were used to assess any differences between the two genders. The null hypothesis was that there were no statistical differences between the two genders' distributions. A p-value was considered significant when <0.05. In addition, aiming to understand the representation of male and female dentists, a comparison of the distributions of males and females in the dental boards with the percentages of female and male dentists operating in Italy in 2021 was performed using a binomial test. The analysis of the data regarding the composition of the dental boards and of the union category association boards revealed a statistically significant difference in the distribution of the roles between the two genders at the regional and local levels, with a p-value of <0.05, and a significantly low representation of the women practicing dentistry (p < 0.05). In Italy, women practicing dentistry are underrepresented in dental organizations and in cultural events, given the low numbers of female dentists in leadership and/or speaker roles in the years 2018-2021. Even though the glass ceiling effect continues to affect Italian female dentists, initiatives and political measures have been taken to improve this condition and reach gender equity.

Prevalence and Characteristics of Accessory Mandibular Canals: A Cone-Beam Computed Tomography Study in a European Adult Population.

The purpose of this observational study is to evaluate the prevalence and main characteristics of bifid canals within a European adult population, analyzing cone-beam-computed tomography (CBCT). The population study examined 300 subjects. The CBCTs were performed between 2012 and 2019, using PaX-Zenith3D with a standard protocol of acquisition. The parameters analyzed were the presence and lengths of the bifid mandibular canals. The sample included 49% male and 51% female participants. The mean age of the patients was 47.07 ± 17.7 years. Anatomical variants of the mandibular canal were identified in 28.8% of the sides and 50.3% of the patients. In 7.3% of the subjects, the anatomical variants were present bilaterally. The most frequently encountered bifid canal was Type 3 (40.5%), followed by the Type 1 canal (39.3%), the Type 2 canal (14.5%), and the Type 4 canal (5.9%), 40% on the right side and 60% on the left side. The average length of the bifid canals located on the right side of the mandible was 11.96 ± 5.57 mm, compared to 11.38 ± 4.89 mm for those measured on the left side. The bifid mandibular canal is a common anatomical variation of the mandibular canal. It is fundamental to performing an accurate preoperative evaluation using CBCT analysis to avoid and/or reduce intraoperative and postoperative complications.

Platelets' Role in Dentistry: From Oral Pathology to Regenerative Potential.

Platelets are a cellular subgroup of elements circulating in the bloodstream, responsible for the innate immunity and repairing processes. The diseases affecting this cellular population, depending on the degree, can vary from mild to severe conditions, which have to be taken into consideration in cases of minor dental procedures. Their secretion of growth factors made them useful in the regenerative intervention. The aim of this review is to examine the platelets from biological, examining the biogenesis of the platelets and the biological role in the inflammatory and reparative processes and clinical point of view, through the platelets' pathology and their use as platelets concentrates in dental regenerative surgery.