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Background/Objectives: Aesthetics is a challenging aspect to restore for both dentists and dental technicians. One of the characteristics of aesthetic restoration is the shade. The purpose of the study is to assess the accuracy of the shade selection feature of intraoral scanners (CEREC Omnican, 3Shape TRIOS) in comparison with an already established method—the VITA Easyshade V spectrophotometer (VE)—and test if there is any significant difference between the three devices. Methods: To conduct this in vitro study, the VITA Classical shade guide was used. The intraoral scanners would not be able to scan the VITA Classical as it is, hence, a study model (SM) was fabricated. To be able to test the accuracy of the intraoral scanners (IOSs) in detecting the dental color, a spectrophotometer had to be included in the study, as it was shown that it is the most accurate instrument for this purpose. Therefore, for the current study, the VITA Easyshade V spectrophotometer (VITA Zahnfabrik, Bad Sackingen, Germany) was selected. Results: The accuracy of the three devices when measuring the shade of the study model was calculated as a percentage. When comparing the primary results of the VE and the results obtained by the Omnicam and TRIOS, the latter is the most accurate (26.67%), whereas the other two scored 20%. The study also revealed the limitations of the instrumental devices that were used. Conclusions: First, both the VE and IOSs obtained unexpectedly low accuracy results. Possibly, the material VC is made of influenced the final accuracy values, but in practice, on a daily basis, dental materials represent a factor that cannot really be controlled.

In order to determine the effects of frontal sinus morphology on the morpho-functionality of the dento-maxillary apparatus and the therapeutic management of pathologies in the orthodontic or maxillofacial surgery area, paraclinical evaluation is extremely important. During time, radiography – a relatively old method, allowed complex explorations of the extreme cephalic area, providing details of cephalometric and facial indexes and information regarding the pneumatization and neuro- and viscera-cranium at the same time. Aim: This manuscript focuses on the correlation of elements related to craniofacial anomalies, in which frontal sinus malformations hold a particularly important place, with various dental anomalies which are particularly important aspects in optimizing the diagnostic and therapeutic protocol in both, orthodontic and orthognathic surgical approaches. Materials and methods: We set out to examine the frontal sinus, including a number of 112 patients, aged 4 to 78 years old, with malocclusions, the research being performed in the Radiology Clinic of Emergency Clinical Hospital “Sf. Spiridon” Iasi, during 2018-2020. We used in our research the landmarks represented by the frontal median septum and the upper orbital margin, on the basis of which we calculated the dimensions of the frontal sinus. The cases were as follows: 66 women (58,9%) and 46 men (41,1%), and age distribution was as follows: •4 – 9 years (20 cases – 17,9%); •10 – 19 years (22 cases – 19,6%); •20 – 45 years (31 cases – 27,7%); •46 – 60 years (19 cases – 17,0%); •over 60 years (20 cases – 17,9%). Results and discussions: The data obtained in our study are superimposable on those found in the literature, noting a frequency of absence of bilateral frontal sinus in 9,8% of cases, the elements of specificity belonging to the percentage of 6,1% for women and 15,2% for men, all cases being between 5-15 years. There are not significant differences between the planimetric measurements at patients with sinusitis compared with the others; instead, we found statistically significant differences between the planimetric measurements concerning the right sinus as well as the left sinus at the 3 classes of malocclusion – the patients in the I-st class have the smallest sinuses, the patients in the II-nd class have intermediary mesurements, while the patients in the III-rd class have the biggest measurements of the sinuses. Conclusions: In dental practice, cascading effects are extremely important, starting from frontal sinus malformations, which lead to different types of dento-dental anomalies, the implications being found in specific orthodontic therapy and orthognathic surgery.

The aim of this study is to carry out an epidemiological retrospective of COVID-19 with individualization of the peculiarities of manifestation on the territory of Moldova, the evolutionary peculiarities being in full agreement with the general status of the patient up to that moment. 779 patients with COVID-19, hospitalized between September 2020 and April 2021, 386 men (49.6%) and 393 women (50.4%), aged between 7 and 93 years, were investigated; the mean age of the patients was 52.26 ± 15.844 years, with no significant differences between men (52.26 ± 15.830 years) and women (52.26 ± 15.878 years). More than half of the patients (59.6%) are aged between 30-59 years; 8.3% are young people under 30 years old, and about a third (32.1%) are elderly, over 60 years old (table 1) – without statistically significant differences between the sexes ( Pearson Chi – squared = 3.102, p = 0.875 ). There are certain correlations between the symptoms noticed in patients, their comorbidities and the appearance of lung changes on CT, respectively febrile or afebrile evolution. Among the characteristic symptoms of COVID-19, patients with comorbidities present more frequently cough, physical asthenia, inappetence and other than chest pain compared to those without comorbidities.

The therapeutic solutions chosen were ceramics on a zirconium support or ceramics on a metal infrastructure made by laser technique, which is a therapeutic alternative beneficial for the relationship with the affected tissues, a situation that is found in patients with cardiovascular or other types of general diseases. In addition to the technological line chosen, the biomaterials chosen are also extremely important, with Co-Cr alloys remaining a biocompatible option that satisfies the optimal parameters of the final prosthetic construction. From the study group we selected a representative clinical case for cardiovascular pathology in conjunction with partial edentulousness.The aim of this study is to identify how modern fixed prosthodontic technologies optimize the integration of fixed prostheses in the context of the current oral manifestations which occur as a consequence of different types of systemic damage.The study group consisted of 200 patients diagnosed with different forms of partial edentulousness and at the same time presenting different general status disorders. Non-invasiveness in conjunction with precise modern technologies with a different degree of biocompatibility creates the prerequisites for a good integration of oral rehabilitation against the background of different types of complications in the territory of oral manifestations in patients with different types of systemic diseases.

Aim of the study In the field of dentistry, emergencies can occur unexpectedly, requiring immediate attention and prompt action.The study aims to shed light on the experiences and knowledge of dental students in handling emergency situations and their understanding of the role of first aid in dental practice. Material and methods A cross-sectional study was conducted at the Faculty of Dental Medicine, Iasi. The questionnaire was updated on the Google Forms platform, and the link was distributed to dental students in their 3rd, 4th, and 5th years of study. Out of Approximately 420 students, 205 of them agreed to respond to the questionnaire. Statistical analysis was performed using SPSS 27.0. Initially, the group was characterized using descriptive statistics, and subsequently, the comparative responses of the students based on their years of study were analyzed using the Chi-square test. The collected data was then analyzed for frequency distributions. Results The findings indicate that dental students possess awareness regarding the risks associated with routine dental practice. While they exhibit a satisfactory level of theoretical knowledge, they lack the necessary confidence to administer first aid, thereby highlighting a disparity between their theoretical understanding and practical skills. Conclusions The findings underscore the need for comprehensive education and training in dental emergency management to equip dental students with the necessary skills and knowledge to handle emergency situations effectively. By incorporating these insights into dental curricula, educators can contribute to the development of competent dental professionals who prioritize patient safety.

Composite materials are biomaterials frequently used in dental restorations, offering an extremely wide range of structures adapted to both the location and the aesthetic and biomechanical requirements of the dental structure to which they are applied. The indications for the use of these biomaterials are not only restricted to the field of conservative dentistry but also in the preparation and reconstruction of dental structures involved in prosthetic therapy, periodontology and dental alveolar surgery, their choice being in accordance with the specifics of the operation performed. The aim of our study was to observe the influence of different beverage environment conditions on two types of obturation dental materials with different compositions from a morpho-structural point of view, water sorption characteristics of the restorative dental composites were determined through DVS measurements. By associating the value of isotherms with the degree of porosity of the surfaces of the two samples analysed, we can conclude that the surface alteration is relatively similar for the two types of material, with higher values being obtained for sample P1 in the presence of Red Bull and then Fanta.

Radiographic methods provide useful information about bone tissue changes, and radiographs have the advantage that they can be stored and reevaluated at any time. However, radiographic evaluations are subject to several sources of error. The purpose of this study was to analyze the maxillary bones by computer tomographic analysis, assessing the value of their density as a predictive element in the success of oral rehabilitation by classical or modern methods. In this study, we selected 35 patients for dental CT scans made with a Somatom Emotion device, Siemens in order to apply dental implants and removable prostheses. 20 women and 15 men aged between 60-80 years participated in the study . For comparison, 6 dental CT scans from the group of patients under the age of 65 were analyzed. The measurements were made on approximately symmetrical right-left areas. A line parallel to the long axis of the horizontal branch of the mandible, tangential to the lower edge, was drawn. The correlative aspects established between the patient’s sex, bone density and the dimensions of the edentulous ridges underline a prevalence, in percentage of 55%, of medium ridges in the frontal area, associated with the female sex and a D3 bone density, while medium ridges both frontally and laterally associated with D3 density and association with the male sex. The value of the CT examination in evaluating the quality of edentulous ridges and some foreign bodies and sinus inflammatory processes with the evaluation of the proximity of important anatomical structures as landmarks in implantology is evident.

Objectives: The aim of this study was to was to count the number of endo-periodontal lesions in ENT cancer patients, as all patients included in the study will benefit from radio and chemotherapy. Materials and methods: our study included 33 cancer patients with ENT and 30 healthy persons. Both the cancer patient group and the control group were examined by two radiologists, an endodontist and an ENT doctor. We took blood samples to correlate the presence, the size of the periapical lesions by using OPT and CBCT with the bone resorbtion biomarker TRAP- 5. Results: Evaluating the OPT, the depth of the periapical lesions found in the control group varies between 0 and 5.00 mm, with an average of 0.700 ± 1.3859; in the ENT cancer group the size of the periapical lesions also varies between 0 and 6.00 mm, but with an average of 1,664 ± 2,1383, obviously and statistically significantly higher than in the control group. The evaluation of CBCT 3D shows in the control group the maximum size found for periapical lesions is 7.60 mm, with an average of 1.1867 ± 2.20043, and in the ENT cancer group the maximum size for periapical lesions found is 10.81 mm, with an average almost three times higher than in the control group, 3.1658 ± 3.54104. The mean value for TRAP 5B in cancer patients is 0.3539 ± 0.0195, significantly higher than the mean observed in the control group of 0.3034 ± 0.0144. Discussions: There are statistically significant differences between the control group and the group of cancer patients in terms of the size of the observed periapical lesions, assessed by both OPT investigation and CBCT 3D. The evaluation of CBCT 3D highlights the same phenomenon, but the magnitude of the periapical lesions found is higher, both in the control group and in the ENT cancer group. Regarding the comparative evaluations of the results obtained by the ELISA kit, TRAP 5B, in healthy patients compared to those with cancer, there are statistically significant differences. Conclusions: By using CBCT, several periapical lesions were found in the same patients and significant differences were observed in their size. We can say that there is a correlation between the presence of periapical lesions and the values ​​of the biomarker TRAP 5B.

The aim of this study was to evaluate the influence of smoking on salivary RANKL and OPG levels in patients with generalized, stage III, grade B periodontitis. Material and methods: The salivary concentrations of RANKL and OPG were determined for 18 patients, aged between 23 and 50 years old, of which 8 were smokers, all presenting with a form of generalized, stage III, grade B periodontitis. Results: smokers had higher salivary levels of RANKL (p=0,0009) and a higher RANKL/OPG ratio (p=0,019), compared to non-smokers. OPG salivary levels did not differ much between smokers and non-smokers. Conclusions: Smoking has a higher impact on RANKL than on OPG salivary levels, for patients with generalized, stage III, grade B, periodontitis.

The purpose of this study is to analyze the opportunity of metal or non- metallic reinforcement of mobilizable prostheses in accordance with the main factors can lead to fracture of partial or totally removable prostheses. Equally, establishing the correlations between the evaluated anatomical features and the intervention of general and loco-regional factors is part of the objectives of the statistical study, crowned with the mirror of the necessary treatment, a clear premise of the motivation of research to improve the quality of total prosthesis. For this purpose, we evaluated a study group consisting of a number of 84 patients diagnosed with total uni and bimaxillary edentation, subtotal and partially extended edentation that were presented in the Clinical Education Base of the Faculty of Dentistry Iasi, respectively in practice private offices, in the period 2018-2020. Regarding the need to reinforce the total prostheses , we remarked a need for 39%, 15% for nemetallic reinforcement and 24% for metallic reinforcement. The clinical statements encountered in the jaw antagonist of the total edentulous one have been edentulous partially stretched, respectively edentulous subtotal that involve forces higher in time carrying out the functions of mastication ( in the case of prosthetic joint ) elements which call for optimizing the possibilities of reinforcing the total prosthesis.

Temporomandibular joint (TMJ) involvement with bone resorption of the mandible is a rare complication in systemic sclerosis (SSc), leading to restrictive mandibular movements, malocclusion, difficult swallowing and mastication, and subsequently altered nutrition. We report a case of SSc-related TMJ pathology in a 23-year woman, emphasizing the relevance of advanced imaging. Extensive bone resorption of mandibular condyle reveled on dental panoramic image explains the malocclusion and impaired interincisal opening, while CBCT demonstrates reshaping of the mandibular condyle with cortical lysis, osteophytes, decreased height and flattening. Furthermore, electromyography confirms masticatory muscles involvement.

Aim of the study was to identify the degree of satisfaction of patients about quality of the private dental medicine practices from Iasi, Romania. Material and methods. The authors of this study tested a representative sample of the population, consisting of 144 people, with different professions and ages. The data collection tool was an original questionnaire. Through its administration, it was intended to assess the patient’s satisfaction with the dental care they received in different dental offices in Iasi during year 2018. Results. The results of the study show that 74.31% of the total patients surveyed are satisfied with the clinical quality of the dental care received, and 18.06% of them are worried about the high prices. The questioned patients believe that dentists with private practice have the necessary equipment and materials to provide dental services at the proper quality. Conclusions. Our study offers useful information for quality management of dental medicine services provided to the local population.

Aim of the study was to investigate the Romanian population regarding the awareness of childhood language impairment. Material and methods: 75 Romanian volunteers (37 male and 38 female) aged 18-78 randomly selected were surveyed through a questionnaire carried out by Working Group 3 of Cost Action IS1406, between March-May 2018. The questions were grouped in 5 sections: personal information, knowledge about childhood language impairment, management/ therapy/ intervention, the role of parents in intervention and improving the lives of these children. Multiple answers were analysed by the SPSS 16.0 package (SPSS Inc., Chicago, IL) for Windows. Results: 57.3% respondents knew the term childhood language impairment. 42.7% respondents heard about language therapy for children. 40% respondents believe that parents should engage in team work with the therapist. 77.3% of respondents believe that school education is the best ways to spread information about childhood language impairments. The correlations between answers and age groups, level of education, the economic status of the volunteers and the parents of the children under 18 have shown statistically significant differences (p

The clinical reality of the total edentation from the point of view of the impact on the general condition of the patient, with extremely serious disturbances on the body pattern, correlated with the variety of clinical situations, always impregnated by the current social aspects, are only a few elements that advocate optimizing the total prosthesis structure by different reinforcement methods. The aim of the study is the practical materialization of the possibilities of optimization of the parameters of totally removable prostheses by associating the types of acrylate with the method of reinforcement with polyethylene fibers and metal nets. Material and method :A total of 12 specimens were made in the form of thin rectangular plates with a longitudinal dimension of 40 mm, a width of about 20 mm, having a thickness ranging from 1.8 to 2.5.Biomechanical tests were done on a HEKERT 50 machine (on a 10 kN scale) and on a Textenser test machine (500N maximum force).The test specimens have combined the different types of acrylate used in dental practice by associating it with various forms of reinforcement, represented by metal nets, respectively polyethylene fibers. Results and discussions: After the examination of the traction patterns of the traction specimens, the following aspects were noted: Unarmed materials showed cross-sectional sections, slightly corrugated with respect to the direction of force. The armed (asymmetric) materials yielded to areas without reinforcement (cracks usually starting from the hole made at the gripping ends). The cracks produced in the reinforcing areas had the following directions: transverse to the reinforcing fibers: I (acrylate and randomly arranged polyethylene fibers), II (acrylate, longitudinally disposed polyethylene fibers), III (acrylate, metal mesh). Conclusions: In the optimization of the therapeutic solutions excellent results are obtained in case of reinforcement with polyethylene fibers longitudinally disposed. It is known that the clinical particularity dictates the final design of the total prosthesis, so in the case of patients with muscular hypertonia, the optimal therapeutic solution remains the reinforcement with polyethylene fibers due to the very good adherence of the polyethylene fibers to the acrylate followed by the metal mesh reinforcement.

The study aimed to investigate the possibilities to use the system expert K-Scoring developed by Prof. Norina Consuela Forna and Neo-Tech, Romania, in the stomatological patients’ evaluation and treatment planning. Materials and method. The study groups included 88 patients treated in the Clinical Base of Dental Medicine Faculty, ”Gr. T. Popa” U.M.Ph. Iasi. The computerized planning and the measurement of clinical-biological indices were performed using PRODENT and K-Scoring Indici (Neo-Tech, România). Results. We found an increasing of the mean value of clinical-biological indices from the primary assessment to the secondary assessment, by values that are related to the clinical indices at the starting point of the treatment and after preparation of the general, loco-regional and local status. For the treated patients, the scoring program offered different values for the prosthetic therapy with different ranges of score with excellent, medium or poor prognosis of the case. Conclusions. The Scoring application is extremely accurate in the possibility to optimize the treatment plan, to help chose the appropriate therapeutic solutions and to make prognosis on short, medium and long term, by analysing the entire clinical-biological indices and scores.

Aim of the study The aim of this study is to emphasize the important role of career counselling in choosing the right career path. The dental students have multiple choices in their future career; the most important thing is to have access at objective tools in order to identify the most suitable trajectory. Material and methods We applied a questionnaire among the dental students from Iasi, the 6th year of study, during a period of 7 years (2011-2017) in order to identify their choices for the future career. The statistical processing was made in SPSS 20.0 and we reported the descriptive and the analytical results. Results It will be structured as shown here. Conclusions The study has shown that targeted career counselling has an important and valuable role in establishing the correct professional trajectory according to the individual skills, competences and aspirations

Purpose The aim of our study was to verify the variety of some permanent teeth, known as having multiple morphological variations: maxillary incisors, maxillary molars, mandibular premolars and molars. Material and Method. For this study we used intraoral images taken in a dental private practice, in Athens (Greece), between July 2014-July 2016. The study group was composed by 239 patients (105 males and 134 females) aged 17 to 52 years. The results were statistically analyzed with SPSS 16.0. Results. We found some expected morphological aspects, as are described in the literature, but there are some findings quite surprising, especially the number of cusps in mandibular premolars and molars. Conclusions The dentist should be aware that the diversity in human body it is found also in the diversity of teeth morphology. Although in dental school he is receiving a large amount of knowledge, he must continue to learn from his own clinical experience, because in real life, the real morphology is more diverse than in textbooks.

During the statistical analysis of medical data, in many situations it is necessary to identify the multiple correlations established between the studied parameters. In this purpose, one of the most useful methods is to build a model of multiple regression, which allows the modeling of a dependant variable values having at least the ordinal type, based on its linear relation with more than one independent variables satisfying the same restriction, called predictors. The multiple linear regression model is a generalization of the simple linear regression model, which identifies the parameters of an equation with n variables y = b0+b1x1+b2x2+…+ bnxn+e, based on which we can find the predictors that have a statistically significant influence over the dependant variable. We used this model to identify, on a set of 202 patients having different types of oral lesions, the biochemical analysis which can be eventually correlated with the oral diagnosis. We found that the values of leucocytes, hemoglobin and hematocrit are significant for the general oral diagnosis, the cholesterol and glucose values for the oral lesion type, and the hemoglobin for the periodontal disease. The identified predictors are useful for further data processing.

Multimedia resources, such as instructional videos, are currently enjoying a certain popularity in the training programs for medical and dental students. The major challenge is to create such resources with quality content that is approved by students. In order to answer this challenge, it is imperative to find out which features of instructional videos are considered to be necessary and useful by students, thus being able to excite them, to hold their attention, and to stimulate them in learning with pleasure. Aim: We investigated the opinions of a sample of 551 students from four medical universities in Romania, in order to identify the students' preferred characteristics in instructional videos, both globally and comparatively on genders and age groups and also according to their general preferences for using internet services. Material and methods: We used univariate (hypothesis testing) and multivariate (two-step clustering) data analysis techniques and revealed three clusters of students, primarily determined by their perceptions of the visual appearance of the instructional videos. Results: The structure of the clusters by gender and age group was relatively similar, but we recorded differences associated with the students' expressed preferences for certain internet services compared to others. The first identified cluster (35.4% of the cases) contains students who prefer instructional videos to contain images used only for aesthetic purposes and to fill the gaps; they use internet services mainly for communication. The second cluster of students (34.8%) prefers videos designed as practical lessons, using explanatory drawings and diagrams drawn at the same time as the explanations; they also use internet services mainly for communication. The last cluster of students (29.8%) prefer videos designed as PowerPoint presentations, with animated pictures, diagrams, and drawings; they are slightly younger than the others and use internet services mainly for information and communication, but also for domestic facilities. Conclusions: The students' preferences for certain features of instructional videos depend not only on gender and age but are also related to their developmental background and general opinions about modern technologies. [ABSTRACT FROM AUTHOR]