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1.
Medicina (Kaunas) ; 59(1)2023 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-36676740

RESUMO

Background and Objectives: The ever more complex modern dental education requires permanent adaptation to expanding medical knowledge and new advancements in digital technologies as well as intensification of interdisciplinary collaboration. Our study presents a newly developed computerized method allowing virtual case simulation on modular digital dental models and 3D-printing of the obtained digital models; additionally, undergraduate dental students' opinion on the advanced method is investigated in this paper. Materials and Methods: Based on the digitalization of didactic dental models, the proposed method generates modular digital dental models that can be easily converted into different types of partial edentulism scenarios, thus allowing the development of a digital library. Three-dimensionally printed simulated dental models can subsequently be manufactured based on the previously obtained digital models. The opinion of a group of undergraduate dental students (n = 205) on the proposed method was assessed via a questionnaire, administered as a Google form, sent via email. Results: The modular digital models allow students to perform repeated virtual simulations of any possible partial edentulism cases, to project 3D virtual treatment plans and to observe the subtle differences between diverse teeth preparations; the resulting 3D-printed models could be used in students' practical training. The proposed method received positive feedback from the undergraduate students. Conclusions: The advanced method is adequate for dental students' training, enabling the gradual design of modular digital dental models with partial edentulism, from simple to complex cases, and the hands-on training on corresponding 3D-printed dental models.


Assuntos
Modelos Anatômicos , Modelos Dentários , Humanos , Educação em Odontologia/métodos , Impressão Tridimensional , Simulação por Computador
2.
Clin Oral Investig ; 26(11): 6639-6652, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35829773

RESUMO

OBJECTIVES: The aim of this study is to assess the clinical and microbiological effects of a single subgingival administration of sodium hypochlorite gel (NaOCl) and compare it with 1% chlorhexidine (CHX) gel and a placebo gel following mechanical re-instrumentation during supportive periodontal therapy (SPT). MATERIALS AND METHODS: Sixty-two patients who had been treated for stage III-IV periodontitis and enrolled in SPT were included in the study based on following criteria: (1) active periodontal therapy completed at least 6 months before enrollment in the study, (2) presence of at least 4 non-adjacent sites with probing pocket depths (PPDs) ≥ 4 mm with bleeding on probing (BOP), or presence of 5-8 mm PPDs with or without BOP. All sites presenting PPD ≥ 4 mm and BOP at baseline and 3-, 6-, and 9-month follow-up timepoints were subgingivally re-instrumented with ultrasounds. Selected patients were randomly assigned into three groups and treated additionally with a single subgingival administration of NaOCl gel (group A); 1% CHX gel (group B); and placebo gel (group C). Main outcome variable was pocket closure at 12 months. Secondary outcome variables were changes in mean PPD, BOP, and clinical attachment level (CAL) along with changes in the numbers of the following five keystone bacterial pathogens: Aggregatibacter actinomycetemcomitans (A.a.), Porphyromonas gingivalis (P.g.), Prevotella intermedia (P.i.), Tannerella forsythia (T.f.), and Treponema denticola (T.d.). RESULTS: At 12 months, pocket closure was obtained in 77.5% in the NaOCl treated sites. The reduction in PPD was higher with CHX than with NaOCl, although a statistically significant adjunctive effect for NaOCl (P = 0.028) was only observed in comparison with placebo only. Mean CAL improved in all groups and at all timepoints, compared to the baseline (P < 0.05). However, after 6 months, CAL gain was statistically significantly higher in the NaOCl treated group than following application of CHX (P = 0.0026). CONCLUSION: In SPT patients, a single adjunctive use of a NaOCl gel may provide benefits in controlling inflammation and residual pockets. TRIAL REGISTRATION: ISRCTN Registry of Clinical Trials (ISRCTN11387188). CLINICAL RELEVANCE: A baseline single application of NaOCl gel in conjunction with mechanical debridement may achieve substantial pocket closure in patients enrolled in SPT; treatment time, cost, and applicability considerations should be taken into account when selecting this therapy.


Assuntos
Periodontite , Hipoclorito de Sódio , Humanos , Bolsa Periodontal/microbiologia , Hipoclorito de Sódio/farmacologia , Hipoclorito de Sódio/uso terapêutico , Clorexidina/farmacologia , Periodontite/microbiologia , Aggregatibacter actinomycetemcomitans , Porphyromonas gingivalis , Raspagem Dentária
3.
Molecules ; 26(9)2021 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-34066444

RESUMO

Dental pulp vitality is a desideratum for preserving the health and functionality of the tooth. In certain clinical situations that lead to pulp exposure, bioactive agents are used in direct pulp-capping procedures to stimulate the dentin-pulp complex and activate reparative dentinogenesis. Hydraulic calcium-silicate cements, derived from Portland cement, can induce the formation of a new dentin bridge at the interface between the biomaterial and the dental pulp. Odontoblasts are molecularly activated, and, if necessary, undifferentiated stem cells in the dental pulp can differentiate into odontoblasts. An extensive review of literature was conducted on MedLine/PubMed database to evaluate the histological outcomes of direct pulp capping with hydraulic calcium-silicate cements performed on animal models. Overall, irrespective of their physico-chemical properties and the molecular mechanisms involved in pulp healing, the effects of cements on tertiary dentin formation and pulp vitality preservation were positive. Histological examinations showed different degrees of dental pulp inflammatory response and complete/incomplete dentin bridge formation during the pulp healing process at different follow-up periods. Calcium silicate materials have the ability to induce reparative dentinogenesis when applied over exposed pulps, with different behaviors, as related to the animal model used, pulpal inflammatory responses, and quality of dentin bridges.


Assuntos
Materiais Biocompatíveis/química , Compostos de Cálcio/química , Capeamento da Polpa Dentária , Dentinogênese/efeitos dos fármacos , Silicatos/química , Compostos de Alumínio , Animais , Cerâmica , Materiais Dentários , Polpa Dentária/efeitos dos fármacos , Dentina/química , Dentina Secundária/efeitos dos fármacos , Cães , Combinação de Medicamentos , Humanos , Inflamação , Modelos Animais , Óxidos/farmacologia
4.
Medicina (Kaunas) ; 57(5)2021 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-34064493

RESUMO

Background and Objectives: The aim of this study was to evaluate and compare the effects of two different anti-inflammatory drugs (ketoprofen and prednisone) combined with an antibiotic (amoxicillin + clavulanic acid) and periodontal surgery on dental and periodontal parameters in patients with severe chronic periodontitis. In addition, salivary stress expressed by cortisol levels was assessed. Materials and Methods: An interventional study was performed on 22 periodontal subjects and 19 clinical healthy controls. The patients were divided in four groups, depending on treatment planning, as follows: eight patients received prednisone and antibiotherapy, associated with surgical periodontal therapy; seven patients received ketoprofen and antibiotherapy, associated with surgical periodontal therapy (group II); seven patients received only prednisone. Periodontal healthy patients underwent routine scaling and polishing. Bleeding on probing (BOP), dental mobility and salivary cortisol (ng/mL) were assessed before and after treatment. The means and standard deviations for the salivary cortisol levels (SCLs), dental and periodontal parameters were calculated for all groups using each patient as a unit of analysis. Results: Data analyses showed that the two different anti-inflammatory drugs associated with or without surgical therapy were efficient on inflammation periodontal parameters (BOP, dental mobility). Prednisone treatment alone was associated with a significant decrease of SCLs between pretreatment and post-treatment. Conclusions: In the present study, the effects of either of the anti-inflammatory drugs on inflammation evolution and salivary stress were comparable in patients undergoing antibiotherapy and surgical periodontal therapy.


Assuntos
Periodontite Crônica , Cetoprofeno , Amoxicilina/uso terapêutico , Periodontite Crônica/complicações , Periodontite Crônica/tratamento farmacológico , Periodontite Crônica/cirurgia , Ácido Clavulânico , Humanos , Prednisona/uso terapêutico
5.
Clin Oral Investig ; 24(1): 301-308, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31098713

RESUMO

OBJECTIVES: The aim of the study was to determine the prevalence of clinical forms in a group of oral lichen planus (OLP) patients and to investigate whether the oral health-related quality of life (OHRQoL) of patients with common clinical OLP forms differs significantly from that of other clinical forms of OLP and healthy patients, respectively. METHODS: OHRQoL was assessed using the Romanian version of the short form of the Oral Health Impact Profile (OHIP-14). OLP patients rated the pain they were currently experiencing on a visual analog scale (VAS). Statistics was performed using parametric and non-parametric tests and multiple linear regression. RESULTS: Eighty OLP patients and 80 healthy controls were enrolled. The most prevalent OLP clinical form was keratotic form (n = 39, 48.75%, group 1), followed by atrophic (31.25%), erosive-ulcerative (17.5%), and bullous (2.5%) forms, which were included in group 2 (n = 41). The OHRQoL did not differ significantly between group 1 and the other two groups. A negative social impact was reported on psychological discomfort domain for both OLP groups, as compared with healthy controls. VAS scores were significantly associated with OHIP total scores in group 1 (rho = 0.41, n = 39, p = 0.009, Spearman's correlation coefficient). Within the same group, significantly higher OHIP total scores were recorded in patients lacking academic education (p = 0.0086, Mann-Whitney U test). CONCLUSIONS: Overall, the most common clinical OLP form did not impact significantly the OHRQoL of OLP patients. CLINICAL RELEVANCE: Psychological therapy and meeting the educational needs might improve the OHRQoL of patients with common clinical forms of OLP.


Assuntos
Líquen Plano Bucal , Saúde Bucal , Qualidade de Vida , Idoso , Feminino , Nível de Saúde , Humanos , Líquen Plano Bucal/complicações , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
6.
Eur J Dent Educ ; 24(1): 79-87, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31574582

RESUMO

BACKGROUND: The introduction of innovative nanotechnologies in medicine and dentistry may initiate a need for curriculum revision at the universities. The aim of this study was to assess dental students' knowledge and attitudes related to nanotechnology. Covariates of students' intention to use nanomaterials in their future dental practice were evaluated using the theory of planned behaviour (TPB). METHODS: Dental students at Norwegian and Romanian Universities were invited to participate. A self-administered structured questionnaire including socio-demographics and Ajzen's TPB components was used. FINDINGS: A total of 212 out of 732 dental students participated in the survey: 52 Norwegian and 160 Romanian. Most students reported to have little knowledge about nanotechnology (Norwegians = 44.2% vs Romanians = 46.9%, P < .05). More than 90% of the students in both countries reported that they wanted to get more information about nanotechnology. Mean knowledge score was similar for Norwegian and Romanian students (4.4 ± 1.7 vs 4.2 ± 1.4, P > .05). Romanian students had more positive attitude, stronger subjective norms and stronger perceived behavioural control towards nanotechnology compared to their Norwegian counterparts. Intention to use nanomaterials in the total sample was most strongly influenced by attitude towards the use of dental nanomaterials (beta = 0.42, P < .001). CONCLUSION: Dental students in Norway and Romania demonstrated limited knowledge about nanotechnology. Intention to use nanomaterials was primarily influenced by attitudes. A clear desire for more information about the application of nanotechnology in dentistry was expressed by the respondents indicating a need for curriculum modification.


Assuntos
Intenção , Estudantes de Odontologia , Estudos Transversais , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Nanotecnologia , Noruega , Romênia , Inquéritos e Questionários
7.
Molecules ; 24(13)2019 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-31247901

RESUMO

Hepatocellular carcinoma (HCC) is one of the most frequent cancers, and to date, there have been very few drugs available that can improve survival, the most well-known being sorafenib. The pathogenesis of HCC is complex, involving multiple processes including abnormal cell and tissue regeneration, angiogenesis, genomic instability, cellular proliferation, and signaling pathway alterations. Capsaicin is a substance that holds increasingly high interest and is studied as a therapeutic option in a wide array of diseases. Several studies have investigated capsaicin roles in various stages of HCC oncogenesis. This paper aims to thoroughly detail the available information on the individual effects of capsaicin on the cellular mechanisms and pathways involved in HCC development, as well as investigate their possible cooperation and interferences. The synergistic antitumor effects of capsaicin and sorafenib are also addressed.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Capsaicina/farmacologia , Animais , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/uso terapêutico , Apoptose/efeitos dos fármacos , Capsaicina/química , Capsaicina/uso terapêutico , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/etiologia , Carcinoma Hepatocelular/metabolismo , Diferenciação Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Sinergismo Farmacológico , Humanos , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/etiologia , Neoplasias Hepáticas/metabolismo , Neovascularização Patológica/tratamento farmacológico , Estresse Oxidativo , Transdução de Sinais/efeitos dos fármacos , Sorafenibe/farmacologia , Sorafenibe/uso terapêutico , Canais de Cátion TRPV/agonistas
8.
Surg Radiol Anat ; 37(9): 1145-7, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25813918

RESUMO

Among the dental and maxillary anomalies, impacted teeth are frequently encountered. However, the incidence of impaction of maxillary first premolars is very low. Herewith, we report a rare case of impacted maxillary left first premolar, in a vertical position, with the apical two-thirds of the root situated in the angle between the medial and antero-lateral walls of the maxillary sinus. The persistence of the maxillary left primary canine was also observed. The cone beam computed tomography evaluation of the case identified the close proximity of the impacted tooth with the root of the permanent canine and the nasal fossa. The finding may be helpful to dental practitioners, not only to anticipate the difficulties which may occur during surgical interventions, but also to prevent possible complications, such as maxillary infections or root resorptions.


Assuntos
Dente Pré-Molar/diagnóstico por imagem , Tomografia Computadorizada de Feixe Cônico , Dente Impactado/diagnóstico por imagem , Feminino , Humanos , Maxila/diagnóstico por imagem , Pessoa de Meia-Idade
9.
Cells Tissues Organs ; 199(1): 59-72, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24801000

RESUMO

The suburothelium has received renewed interest because of its role in sensing bladder fullness. Various studies evaluated suburothelial myofibroblasts (MFs), interstitial cells (ICs), interstitial Cajal cells (ICCs) or telocytes (TCs), which resulted in inconsistencies in terminology and difficulties in understanding the suburothelial structure. In order to elucidate these issues, the use of electron microscopy seems to be an ideal choice. It was hypothesized that the cell population of the suburothelial band is heterogeneous in an attempt to clarify the above-mentioned inconsistencies. The suburothelial ICs of the bladder were evaluated by immunohistochemistry (IHC) and transmission electron microscopy (TEM). Bladder samples from 6 Wistar rats were used for IHC and TEM studies and human bladder autopsy samples were used for IHC. Desmin labeled only the detrusor muscle, while all the myoid structures of the bladder wall were positive for α-smooth muscle actin (SMA). A distinctive α-SMA-positive suburothelial layer was identified. A layered structure of the immediate suburothelial band was detected using TEM: (1) the inner suburothelial layer consisted of fibroblasts equipped for matrix synthesis; (2) the middle suburothelial layer consisted of smooth muscle cells (SMCs) and myoid ICCs, and (3) the outer suburothelial layer consisted of ICs with TC morphology, building a distinctive network. In conclusion, the suburothelial layer consists of distinctive types of ICs but not MFs. The myoid layer, with SMCs and ICCs, which could be considered identical to the α-SMA-positive cells in the suburothelial band, seems the best-equipped layer for pacemaking and signaling. Noteworthy, the network of ICs also seems suitable for stromal signaling.


Assuntos
Actinas/metabolismo , Células Intersticiais de Cajal/citologia , Bexiga Urinária/citologia , Idoso , Animais , Cadáver , Feminino , Humanos , Imuno-Histoquímica , Células Intersticiais de Cajal/metabolismo , Masculino , Microscopia Eletrônica de Transmissão , Pessoa de Meia-Idade , Ratos , Ratos Wistar , Bexiga Urinária/metabolismo
10.
Clin Oral Implants Res ; 25(2): e171-8, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23278517

RESUMO

OBJECTIVE: The objective is to compare, in a prospective randomized clinical trial, three types of attachment systems for mandibular implant overdenture, focusing on costs, maintenance requirements and complications from baseline to the end of 5-year follow-up period. MATERIALS AND METHODS: Sixty-nine fully mandibular and fully/partially maxillary edentulous patients received two screw-type Straumann implants, in the mandibular canine region. New overdentures with three types of attachment systems were inserted according to an early-loading protocol: Group B (balls, divided into Subgroup B.1 - retentive anchor with gold matrix and Subgroup B.2 - retentive anchor with titanium matrix) (n = 23), Group M (magnets) (n = 23) and Group L (locator) (n = 23). RESULTS: The highest maintenance event number (195) was observed in Group B vs. 31 in Group L and 15 in Group M. Significantly more complications were recorded in Subgroup B.1 than in Subgroup B.2, Group M and Group L (P < 0.05). Group M registered the highest prosthetic success (82.6%) in the 5 years, followed by Group L (78.2%). Subgroup B.1 had the lowest success rate (50%). The magnet group recorded statistically significant higher costs, comparing with the other two groups (P < 0.05). CONCLUSIONS: The three attachment systems functioned well after 5 years. The magnets had a low maintenance requirement and high success rate, despite the relatively increased initial costs. Retentive anchor with titanium matrix and locator may be a better choice from a financial point of view, taking into consideration the initial low cost of the components and also the reduced number of complications.


Assuntos
Prótese Dentária Fixada por Implante , Retenção de Dentadura/métodos , Revestimento de Dentadura , Arcada Edêntula/reabilitação , Adulto , Idoso , Idoso de 80 Anos ou mais , Custos e Análise de Custo , Feminino , Humanos , Magnetismo , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Âncoras de Sutura , Resultado do Tratamento
11.
Ann Anat ; 255: 152273, 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38754741

RESUMO

BACKGROUND: When the natural process of bone remodeling is disturbed, the need arises for a stimulant material in order to enhance the formation of a new healthy and strong osseous tissue to replace the damaged one. Recent studies have reported synthetic biomaterials to be a very good option for supporting bone regeneration. STUDY DESIGN: Narrative review. OBJECTIVE: This review aims to provide a brief presentation of two of the most recently developed synthetic biomaterials, i.e. calcium phosphate cements and synthetic composites, that are currently being used in bone regeneration with promising results. METHODS: Literature searches using broad terms such as "bone regeneration," "biomaterials," "synthetic composites" and "calcium phosphate cements" were performed using PubMed. The osteal cells state of the art was explored by searching topic-specific full text keywords using Google Scholar. CONCLUSIONS: Synthetic polymers such as PCL (poly-ε-caprolactone) and PLGA (poly lactic-co-glycolic acid) can improve the effectiveness of biomaterials like HA (hydroxyapatite) and BG (bioglass). Calcium phosphate, although being a suitable material for stimulating bone regeneration, needs an adjuvant in order to be effective in larger bone defects.

12.
Surg Radiol Anat ; 35(2): 143-59, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22918475

RESUMO

The anatomy of the pterygopalatine fossa keeps a traditional level and is viewed as constant, even though a series of structures neighboring the fossa are known to present individual variations. We aimed to evaluate on 3D volume renderizations the anatomical variables of the pterygopalatine fossa, as related to the variable pneumatization patterns of the bones surrounding the fossa. The study was performed retrospectively on cone beam computed tomography (CBCT) scans of 100 patients. The pterygopalatine fossa was divided into an upper (orbital) and a lower (pterygomaxillary) floor; the medial compartment of the orbital floor lodges the pterygopalatine ganglion. The pneumatization patterns of the pterygopalatine fossa orbital floor walls were variable: (a) the posterior wall pneumatization pattern was determined in 89.5 % by recesses of the sphenoidal sinus related to the maxillary nerve and pterygoid canals; (b) the upper continuation of the pterygopalatine fossa with the orbital apex was narrowed in 79.5 % by ethmoid air cells and/or a maxillary recess of the sphenoidal sinus; (c) according to its pneumatization pattern, the anterior wall of the pterygopalatine fossa was a maxillary (40.5 %), maxillo-ethmoidal (46.5 %), or maxillo-sphenoidal (13 %) wall. The logistic regression models showed that the maxillo-ethmoidal type of pterygopalatine fossa anterior wall was significantly associated with a sphenoidal sinus only expanded above the pterygoid canal and a spheno-ethmoidal upper wall. The pterygopalatine fossa viewed as an intersinus space is related to variable pneumatization patterns which can be accurately identified by CBCT and 3DVR studies, for anatomic and preoperatory purposes.


Assuntos
Tomografia Computadorizada de Feixe Cônico/métodos , Imageamento Tridimensional/métodos , Fossa Pterigopalatina/anatomia & histologia , Fossa Pterigopalatina/diagnóstico por imagem , Variações Dependentes do Observador , Estudos Retrospectivos
13.
Folia Morphol (Warsz) ; 72(1): 29-35, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23749708

RESUMO

BACKGROUND: To investigate the length and three-dimensional orientation and to detail the morphological variations of the styloid process. MATERIALS AND METHODS: Forty-four patients undergoing temporal bone evaluation for different reasons were randomly selected and included in the present study. The length, angulation in the coronal and sagittal planes, as well as morphological variations of the styloid processes were assessed using conebeam computer tomography. Pearson's correlation coefficient was used to test possible associations between the length of styloid process and angulations, as well as between angulations. Student's t-test was used to compare the differences between the sample mean length and angulations in normal and elongated styloid process groups. RESULTS: The sagittal angle showed weak positive correlations with the styloid process length and the transverse angle (r = 0.24, p = 0.02, n = 88). A medium positive correlation was found between the sagittal and transverse angulations in the elongated styloid process group (r = 0.49, p = 0.0015, n = 38). There was a statistical significant difference between the mean sagittal angulation in elongated styloid and normal styloid process groups (p = 0.015). The styloid process morphology also varied in terms of shape, number, and degree of ossification. CONCLUSIONS: The morphometric and morphologic variations of the styloid process may be important factors to be taken into account not only from the viewpoint of styloid syndromes, but also in preoperatory planning and during surgery.


Assuntos
Tomografia Computadorizada de Feixe Cônico/métodos , Traumatismos do Nervo Glossofaríngeo/diagnóstico por imagem , Ossificação Heterotópica/diagnóstico por imagem , Osso Temporal/diagnóstico por imagem , Adulto , Análise por Conglomerados , Feminino , Traumatismos do Nervo Glossofaríngeo/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Ossificação Heterotópica/patologia , Osso Temporal/anormalidades , Osso Temporal/patologia , Adulto Jovem
14.
Healthcare (Basel) ; 11(9)2023 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-37174868

RESUMO

Oral health professionals' knowledge of sustainability is essential for promoting environmental protection in dental healthcare. This pilot study involved an online survey addressed to 70 dental private practitioners from Bucharest, Romania, to evaluate their awareness of the concept of sustainability in dentistry. The performed statistical analysis revealed that 41.4% of the participants were well aware of sustainability in dentistry, with older participants demonstrating significantly higher levels of such awareness (p = 0.001). Sustainability awareness among participants correlates positively with their knowledge of the negative environmental impacts of dental activity (p < 0.001) and with the concern for sustainable dentistry implementation in their workplace (p = 0.037). Improper biohazardous waste disposal was identified as the primary cause of negative environmental impact of dental practices by 87.1% of participants. Installing high energy-efficient dental equipment was selected as the most important action to implement sustainability in participants' dental practices (64.3%). Overall, 51.4% of the participants reported that the COVID-19 pandemic had a medium impact on their dental activity in terms of sustainability. Our study found that participants have a moderate level of awareness regarding sustainability in dentistry, highlighting the need for education on sustainability for oral health professionals.

15.
Artigo em Inglês | MEDLINE | ID: mdl-36767150

RESUMO

Dental education was severely challenged by the COVID-19 pandemic worldwide. The evaluation of the viewpoint of the dental teachers of the Faculty of Dentistry at "Carol Davila" University of Medicine and Pharmacy in Bucharest, Romania, on these exceptional circumstances' consequences was the objective of this paper. A cross-sectional study was conducted in April 2022, on the academic staff who reported their perceptions of the emotional and educational impact of the pandemic by completing a Google Forms questionnaire. Although a significant emotional impact of the pandemic was reported by over a third of the participants (31.2%), most of them being teachers of fifth-year dental students (p = 0.019), the perceived stress had an impact on the teaching performance in few of them (14%), the quality of sleep remaining unaffected in most of them (53.7%), whereas the level of anxiety was low (57%). An educational impact regarding the techno difficulties during the online transition was mentioned by few respondents (16.1%), with male teaching staff facing the fewest problems (p = 0.024), as well as low levels of difficulties in transmitting academic information (11.9), with men also being the most unaffected (p = 0.006). More than half of the participants (59.1%) rather see digital and/or virtual education during the pandemic as having adverse effects on the educational system, the most sceptical being teachers of the fifth (p = 0.001) and sixth years (p = 0.001). The COVID-19 pandemic affected the academic staff of the Faculty of Dentistry at "Carol Davila" University of Medicine and Pharmacy in Bucharest, Romania, not only at a personal level but also at a professional, pedagogical one, due to the introduction of the online teaching system followed by the hybrid one. Age group, gender, and teaching year differentiated the degree of emotional and educational impairment.


Assuntos
COVID-19 , Pandemias , Humanos , Masculino , COVID-19/epidemiologia , Estudos Transversais , Motivação , Educação em Odontologia
16.
J Funct Biomater ; 15(1)2023 Dec 22.
Artigo em Inglês | MEDLINE | ID: mdl-38248674

RESUMO

Along with the rapid and extensive advancements in the 3D printing field, a diverse range of uses for 3D printing have appeared in the spectrum of medical applications. Vat photopolymerization (VPP) stands out as one of the most extensively researched methods of 3D printing, with its main advantages being a high printing speed and the ability to produce high-resolution structures. A major challenge in using VPP 3D-printed materials in medicine is the general incompatibility of standard VPP resin mixtures with the requirements of biocompatibility and biofunctionality. Instead of developing completely new materials, an alternate approach to solving this problem involves adapting existing biomaterials. These materials are incompatible with VPP 3D printing in their pure form but can be adapted to the VPP chemistry and general process through the use of innovative mixtures and the addition of specific pre- and post-printing steps. This review's primary objective is to highlight biofunctional and biocompatible materials that have been adapted to VPP. We present and compare the suitability of these adapted materials to different medical applications and propose other biomaterials that could be further adapted to the VPP 3D printing process in order to fulfill patient-specific medical requirements.

17.
Surg Radiol Anat ; 34(6): 551-8, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22437467

RESUMO

PURPOSES: The present study was conducted to assess the amount of bone present between root apices and the maxillary sinus floor in the maxillary lateral region, to compare the evaluations on cone beam computed tomography (CBCT) and orthopantomography (OPG), and to evaluate the bone density of the same region using three-dimensional images on CBCT. METHODS: Fifty-one dental patients were recruited for the study. All subjects were partially edentulous. The distances from the maxillary premolars and molars apices to the maxillary sinus floor were assessed using CBCT and OPG. Color codes were assigned to the bone density of edentulous loci. Parametric and non-parametric tests were used for statistical analyses. A p value <0.05 was considered statistically significant. RESULTS: The maxillary first and second molars recorded the shortest mean distances to the sinus floor, in contrast to the maxillary first premolar. The bone density of the maxillary lateral area increased from the maxillary first premolar to the second molar. No statistical significant differences were found between the evaluated sites. CONCLUSIONS: Our results provide estimates of the minimal and maximal distances between teeth and sinus, as well as the average bone density in the maxillary lateral region. It is important that evaluation of a specific patient be performed during the preoperative planning of implants.


Assuntos
Pesos e Medidas Corporais/métodos , Densidade Óssea , Maxila/diagnóstico por imagem , Seio Maxilar/diagnóstico por imagem , Adulto , Idoso , Dente Pré-Molar/diagnóstico por imagem , Tomografia Computadorizada de Feixe Cônico/métodos , Feminino , Humanos , Imageamento Tridimensional/métodos , Masculino , Pessoa de Meia-Idade , Dente Molar/diagnóstico por imagem , Boca Edêntula/diagnóstico por imagem , Radiografia Panorâmica/métodos , Raiz Dentária/diagnóstico por imagem , Adulto Jovem
18.
J Funct Biomater ; 13(4)2022 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-36412885

RESUMO

We live in unprecedented times [...].

19.
J Funct Biomater ; 13(2)2022 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-35645259

RESUMO

Dental pulp vitality preservation in dental caries treatment is a major goal in odontotherapy. The main objective of this study was to compare dental pulp tissue responses to vital therapies in deep carious lesions, using different calcium-based materials. An ambispective study was conducted on 47 patients. Ninety-five teeth with deep carious lesions were treated. Among them, 25 (26.32%) were diagnosed with pulpal exposures and treated by direct pulp capping. Indirect pulp capping was applied when pulp exposure was absent (n = 70; 73.68%). Fifty teeth (52.63%) were treated with TheraCal LC (prospective study), 31 teeth (32.63%) with Calcimol LC, and 14 teeth (14.74%) with Life Kerr AC (retrospective study). The results show that the survival rate for dental pulp was 100% for Life Kerr AC, 92% for TheraCal LC, and 83.87% for Calcimol LC, without significant differences. Apparently, self-setting calcium hydroxide material provided better dental pulp response than the two light-cured materials, regardless of their composition, that is, either calcium -hydroxide or calcium silicate-based. We will need a significant number of long-term clinical studies with the highest levels of evidence to determine the most adequate biomaterials for vital pulp therapies.

20.
Healthcare (Basel) ; 10(1)2022 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-35052303

RESUMO

This study aimed to give an image of the oral health status and treatment needs of intellectually challenged athletes taking part in Special Olympics-Special Smiles (SO-SS) events organized in Romania during 2011-2019 and to find potential associations with socio-economic factors. An observational ecological retrospective study was conducted, and 1860 oral examinations were performed on participants aged 8 to 30 years in nine SS-SO events. Oral examination was performed under field conditions. Percentage of caries-free subjects, mean DMF-T index and its components (D = decayed; M = missing; F = filled; T = teeth), restoration index RI = [F/(F + D) × 100]%, and Plaque Index were calculated for each of the nine groups. Caries-free subjects ranged between 5.90% and 21.70%. DMF-T ranged from 4.27 to 7.71. Higher values for "F" component (range 0.66-1.69) and RI (range 13.02-27.74%) were found in events held in cities from regions with higher reported Gross Domestic Product. Sealants were present in 0 to 8.4% of the subjects. In areas with lower numbers of inhabitants per dentist, more sealants were found (p < 0.001). Romanian SO athletes exhibited relatively poor oral health, limited access to dental treatment, and low level of prevention. Targeted prevention and treatment programs adjusted to specific conditions in each geo-economic region are needed.

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