Classic vs. modern techniques on over-prosthesis

Introduction: On the concept of establishing the treatment plan there are a series of principles aimed at restoring stomatognathic system functions by modern or traditional prosthetic ways. Purpose: The purpose of this study is to determine, according to clinical parameters, the prosthetic version of choice according to patients, requiring over-prosthetics, in relation to the degree of local involvement and loco-regional and what type of over-prosthetics will be required. Materials and methods: Edentulous patients, aged 45-60 years were divided into 2 groups depending on treatment option chosemover-prosthetis in the remaining teeth (LI) and the miniimplants overprosthetis or implants (L2). Establishing the therapeutic option individualization of the treatment, according to the clinical and overall edentulism has been considered. Results and discussion: In all clinical cases of oral rehabilitation a complete functional restoration has been achieved, choosing one of the two therapeutic options. The treatment plan consisted of a whole process of pre-prosthetic and pro-prosthetic procedures, which has been competed in achieving a proper treatment with or without general rehabilitation. Conclusions: A treatment plan in each case must be established, on the basis of the diagnosis; prevention and curative measures eliminating the adverse effects of edentations and future prostheses

Classical techniques versus modern in implanto–protetic rehabilitation

Rezumat Reabilitarea orală implanto-protetică este asociată cu provocări complexe din punct de vedere biomecanic și impune o planificare atentă a etapelor proprotetice și proimplantare pentru a evita complicaţiile biologice și tehnice. Tehnicile moderne în reabilitarea implanto-protetică includ restaurări protetice și ghiduri chirurgicale produse prin intermediul tehnologiei CAD/CAM, aplicaţii software care permit optimizarea diagnosticului și planului de tratament, precum și utilizarea unor tehnici chirurgicale și protetice minim invazive. Pacienţii sunt principalii beneficiari ai utilizării noilor tehnologii computerizate în condiţiile în care chirurgia minim invazivă este asociată cu absenţa sau reducerea durerii, edemului și discomfortului postoperator, iar aplicarea imediată a restaurării protetice permite pacientului să își continue fără întreruperi viaţa socială și profesională.Summary Oral implant–prosthetic rehabilitation is associated with biomechanically complex challenges and requires careful planning of the pro– protective and pro– implantation steps to avoid biological and technical complications. Modern techniques in implanto– prosthetic rehabilitation include prosthetic restorations and surgical guides produced through CAD / CAM technology, software applications that optimize diagnosis and treatment plan, and the use of minimally invasive surgical and prosthetic techniques. Patients are the primary beneficiaries of the use of new computerized technologies where minimally invasive surgery is associated with the absence or reduction of pain, edema and postoperative discomfort, and the immediate application of prosthetic restoration allows the patient to continue without interruption the social and professional life

Materials Used for Diagnostic and Treatments in Dental Practice

. Early detection of peri-implantitis and monitoring of therapy outcome can be performed using ELISA test

Obtaining a Thin and Flexible Dental Film of Hydroxyapatite

The deposition of hydroxyapatite thin films has become a topic of interest in medical applications. This dental film applied on the surface of the tooth may act as a highly resistant and flexible artificial enamel, protecting teeth and removing tooth sensitivity. Other possibilities include whitening and coating enamel-deficient structures. We obtained this flexible film of hydroxyapatite using laser ablation. The plasma plumes were generated by an Nd:YAG nanosecond laser in a vacuum chamber. We used the pulsed laser deposition (PLD) technique and conducted investigations using optical emission spectroscopy (OES), laser-induced breakdown spectroscopy (LIBS), and Raman spectroscopy. Initially, a thin film of HA was deposited on a soluble substrate and heated, followed by immersion into pure water to dissolve the substrates. The originality of our approach consists in the fact that the flexible HA film can be obtained in pure state, because it grows without a substrate, using just a base and lateral supports between, on which it will grow vertically. In order to verify the compatibility and the “stickiness” of HA on the teeth, we chose to grow the film between the roots of a tooth. In this case, besides the film, we also obtained HA microfibers. We tried to bind the film on an extracted tooth. A protocol must be established in order to allow the bonding of the film to the surface of the tooth, knowing that contaminants such as saliva or sulcular fluid increase bonding strength to enamel or dentin. We realized an efficient bonding as HA absorbs protein, the mineral also participates in this ionic exchange, and we strengthened the tooth structure. The main purpose of our research is to rebuild the dentine layer or enamel and close the dental channels. Our experiments led to the creation of an HA foil that has the role of protecting teeth against cariogenic bacteria and could even have cosmetic effects by teeth whitening. This dental plaster acts as an artificial HA enamel, very resistant and flexible, protecting the tooth and eliminating dental sensitivity. Being very thin, it is invisible once applied on teeth and can be observed only by examination under a strong light

Теоретическая и практическая программа обучения для сложных случаев имплантологии, денто-альвеолярной хирургии, ОМФ и комплексной оральной реабилитации

 With Romania’s accession to the European Union, the opportunity arose to finance through non-reimbursable funds theoretical and practical training programs for teachers of Romanian dental faculties. Faculty of Dentistry, U.M.F. „Grigore T. Popa” Iași won, through POSDRU programs, a series of projects for obtaining European funds that allowed the initiation of training courses in the field of oral rehabilitation (prosthetics, implantology, dental-alveolar surgery, OMF surgery, oral rehabilitation complex). The courses included training and advanced training programs in the latest information and innovative technologies in the areas listed. Also, through these projects, the Faculty of Dentistry was equipped with a series of updated equipment and technologiesOdată cu aderarea României la Uniunea Europeană, a apărut oportunitatea de finanţare prin fonduri nerambursabile a unor programe de formare teoretică şi practică a cadrelor didactice ale facultăților de medicină dentară din România. Facultatea de Medicină Dentară, U.M.F. „Grigore T. Popa” Iași a câştigat, prin intermediul programelor POSDRU, o serie de proiecte pentru obţinerea de fonduri europene care au permis inițierea unor cursuri de formare în domeniul reabilitării orale (protetică, implantologie, chirurgie dento-alveolară, chirurgie OMF, reabilitare orală complexă). Cursurile au inclus programe de formare şi perfecționare în cele mai noi informaţii şi tehnologii inovative în domeniile enumerate. De asemenea, prin intermediul acestor proiecte Facultatea de Medicină Dentară a fost dotată cu o serie de echipamente şi tehnologii de actualitate С присоединением Румынии к Европейскому Союзу появилась возможность финансировать за счет невозмещаемых фондов, появились некоторые теоретические и практические программы обучения для преподавателей румынских стоматологических факультетов. Факультет стоматологии U.M.F. „Grigore T. Popa” Яссы выиграл через программы POSDRU серию проектов для получения европейских средств, которые позволили инициировать учебные курсы в области реабилитации полости рта (протезирование, имплантология, зубочелюстная хирургия, хирургия OMF, комплекс реабилитации полости рта). Курсы включали программы обучения и повышения квалификации по новейшим информационным и инновационным технологиям в перечисленных областях. Кроме того, в рамках этих проектов стоматологический факультет был оснащен современным оборудованием и технологиям

THE USE OF Er,Cr: YAG IN THE TREATMENT OF PERI-IMPLAANTITIS

40 patients with implant-prosthetic restorations and diagnosed with at least one implant affected by moderate or severe peri-implantitis were selected from Learning Centre “M.Kogalniceanu” of Dental Medicine Faculty, U.M.F.”Grigore T.Popa” Iasi and a private practice. Patients were randomly divided in test group (laser-assisted treatment, flap procedure) and control (mechanical debridement, flap procedure). In the test group, the conventional treatment protocol was assisted by laser therapy (2940nm Er,Cr:YAG laser) . It was recorded (for 7 days post-operatively) the evolution of the next clinical parameters: VAS indices (pain intensity); patients’ disconfort; healing time. Results. In the laser-irradiated group, VAS indices decreased from 2,8 (T0), to 2,4 at 24 h post-operatively, and 0,6 at 48 hours post-operatively. The mean values of healing time are significantly lower (6,5 days) comparing with control (8,5 days). Conclusion. Laser bio-stimulation in peri-implantitis has positive effects on inflammatory processes in peri-implant tissues and accelerate healing processes

Dynamics of Transient Plasmas Generated by ns Laser Ablation of Memory Shape Alloys

Understanding the underline fundamental mechanism behind experimental and industrial technologies embodies one of the foundations of the advances and tailoring new materials. With the pulsed laser deposition being one of the key techniques for obtaining complex biocompatible materials with controllable stoichiometry, there is need for experimental and theoretical advancements towards understanding the dynamics of multi component plasmas. Here we investigate the laser ablation process on Cu-Mn-Al and Fe-Mn-Si by means of space-and time-resolved optical emission spectroscopy and fast camera imaging. In a fractal paradigm the space–time homographic transformations were correlated with the global dynamics of the ablation plasmas

The profile of some inflammatory cytokines in gingival crevicular fluid of an young diabetic population

Rezumat. Interrelaţia diabet zaharat (DZ) status parodontal este un subiect care preocupa deopotriva lumea medicala stomatologica dar si pe cei in slujba ameliorarii si terapiei bolilor de nutritie si metabolism. In studiul de faţă ne‑am propus investigarea statusului parodontal pe un lot tanar cu DZ, prin monitorizarea clinică şi imunobiochimică la nivel local. Bilantul cli‑ nic (aprecierea statusului parodontal) şi investigaţiile de laborator (local în fluidul gingival — FCG) au fost realizate pe două loturi (44 copii si adolescenţi, cu varste intre 6‑18 ani), 22 fără afectare sistemică şi 22 cu DZ, ambele cu variate grade de alterare parodontală. Investigarea locală a răspunsului imunoinflamator generat în contextul sistemic, a vizat eva‑ luarea nivelelor locale ale unor citokine: interleukina 1β (IL‑1β), IL‑4 si IL‑5, precum şi factorul de necroză tumorală (TNF α), prin tehnici de flow citometrie. Studiul de faţă permite investigarea si evaluarea dereglarilor imunobiochimice rezultate in urma alterarii tesutului parodontal in con‑ textul bolii diabetice. Corelaţiile între potenţialul apoptotic al unora dintre citokine sugerează că afectarea atasamentului clinic la copiii şi adolescenţii cu DZ, poate fi, cel putin în parte, atribuită valorilor semnificativ crescute ale citokinelor din clasa TNF α, IL‑1β si IL‑5. La copiii si adolescentii cu diabet, este foarte importanta recunoaşterea şi manipularea terapeutică a sistemului imun, modularea ţintită a unor citokine specifice putand repre‑ zenta unul din factorii importanti în îngrijirea copilului si adolescentului diabetic.Summary. The bivalent relationship diabetes mellitus (DM) – periodontal health and disease (PD) has represented a significant interest over the years, both for dental doctors and those that treat metabolic and nutritional disorders. In this view, the present study investigated the periodontal status in a juve‑ nile population with DM, through the clinical and immune‑biochemical evaluation of some soluble chemical mediators in the gingival crevicular fluid (GCF). Clinical (periodontal status) and laboratory investigations examining the interrelation between DM and PD were performed upon 44, systemically healthy (n=22) and diabetic (n=22) children and adolescents, both with various degrees of periodontal modification. Investigation of the local (GCF) expression of the interleukin 1β, IL‑4, IL‑5 and tumor necrotic factor — TNFα has been achieved by flow cytometry. Our study allowed evaluation of the immuno‑biochemical disequilibrium resulted from the diabetes‑induced periodontal tissue injury. Correlations between apoptotic potential of some cytokines suggest that clinical attachment loss in diabetic children and adolescents could be, at least partly attributed to significant elevated levels of TNFα, IL — 1β and IL‑5. Taking into consideration the binomial relationship between DM and PD, recognition and manipulation of the immune system by targeted modulation of some specific cytokines could represent one of the important facts in the diabetic child and adoles‑ cent care

Current Status of Finite Element Analysis Based Studies on Optimal Dental Implant Length and Diameter in the Posterior Mandible Bone: A Review of the Literature

The scope of this article is to review the current status of finite element analysis based studies on the matter of optimal dental implant length and diameter in the posterior mandible bone and discuss the findings in relation to 3D models used, materials used, type and magnitude of loading. The search of the literature was carried out using electronic databases PubMed, EbscoHost, as well as a manual search of finite element analysis based studies on dental implant diameter and length published between 2000 and 2018, using the terms: finite element analysis, dental implants, implant diameter an implant length. Current finite element analysis studies on the influence of diameter and length of implants present high variability due to the bone models used, material properties assigned, magnitude and type of loading, design of implants and dimensions investigated. However, a clear result is that the diameter of the implant has a great influence on crestal bone stress, an increase in the diameter leading to a decrease in stress. Increase in length leads to a decline in stress values in the bone tissue, but a clear consensus has not been reached yet concerning the extent of its influence on the cortical bone or cancellous bone

Chemical Induced Xerostomia Among Institutionalized Eldery

Subjective presence of dry mouth is most common oral problem among the institutionalized elderly. To assess the subjective presence of xerostomia among institutionalized elderly. Total numbers of 70 subjects older than 65 years institutionalized in one nursing home were evaluated. The subjective presence of xerstomia was determinated. To determine the level of expressiveness of xerostomia is used questionnaire recommended by Carda et al. 62.8% from the subjects believed that they had subjective feeling of xerostomia. Most of them, around 40% had mild (xerostomia1), while around 25% of subjects had severe xerostomia (xerostomia 3). Xerostomia is highly prevalent among institutionalized elderly. Also there is high percentage of institutionalized elderly people who use drugs that can cause xerostomi