Comparative study on metal versus zirconium dioxide infrastructure manufacturing in prosthetic rehabilitation in the maxillary frontal zone

Prosthetic rehabilitation of the maxillary front teeth is an extremely laborious problem for the dental team, consisting of the dentist and the dental technician. If for the physiognomic component the most recommended materials are the ceramic masses, for the resistance substrate there are several variants. Conventional technologies using dental alloys and modern ones involving the use of zirconium dioxide can be used successfully in performing fixed prosthetic restorations in the maxillary frontal area, both options having both advantages and disadvantages, as we will describe in this material

ERGONOMIC CONCEPTS IN DENTAL MEDICINE

Dental medicine is an extremely complex medical field, comprising several specialties (orthodontics and dentofacial orthopedics, prosthodontics, dental surgery, endodontics etc.), which in most cases also require the assistance of a dental nurse. Purpose. In this paper, we have tried to present a number of very interesting ergonomic aspects in the dental office, which aim at simplifying work at this level. Material and method. This study was conducted between May and July 2018 using a questionaire applied to a number of 69 dental practitioners from Bucharest. Results and discussions. Results obtained in this study give us an image about how current dental practitioners understand ergonomics in daily practice. Conlclusions. All the aspects discussed in this study have an important role in the ergonomy of daily activity of a dental office. More important is that the majority of dentists involved in the stuty understand and apply the ergonomic concepts underlined by this study

Dentists, members of the French Resistance movement during the World War II

The Resistance was a reaffirmation of France's independence and individuality, as well as a struggle to regain freedom and, above all, national integrity. In fact, many historians appreciate that the French Resistance could have achieved more if it had been more effectively integrated into Allied plans and strategies. Thus, in this material we tried to present some short biographies of dentists who worked in the French Resistance against the German occupation troops, some of them even paying with their lives for the courage they showed

SINGLE TOOTH EDENTATION CAUSED BY MISSING OF THE 6-YEAR MOLLAR (MAXILLARY AND/OR MANDIBLE) – CONSEQUENCES AND FIX PROSTHETIC TREATMENT SOLUTIONS

The loss of first permanent molars, maxillary and/or mandibular, can lead in time, due to the lack of prosthetic restoration, to a series of complications, some of high gravity, which can cause not only severe difficulties in subsequent prosthetic rehabilitation, but also substantial additional costs for patients. Purpose. Thus, in this material we tried to bring to the attention of dental practitioners the most truthful arguments, for a fixed prosthetic restoration as early and efficient as possible. Material and method. 53 dental practitioners, from different cities of the country, took part in this study conducted between May 2017 and April 2019. Results and discussions. The answers obtained by applying the questionnaire were analyzed statistically and exposed for a better understanding by clear graphical methods. Conclusions. The restoration of this type of single tooth edentation produced by the absence of the 6-yearold molar, regardless of location (maxillary and / or mandibular), is considered by most dental practitioners to be relatively simple, regardless of the therapeutic option selected

THEORETICAL AND PRACTICAL CONSIDERATIONS IN THE TREATMENT OF MORPHOFUNCTIONAL IMBALANCES OF DENTO-MAXILLARY SYSTEM FOR THE AGE PERIOD AFTER 12 YEARS – PRELIMINARY STUDY

This age period after 12 years is characterized by an increase in all dimensions of all the anatomical structures of the individuals, under the influence of new factors that interfere with the general tonus of the body. Purpose. Thus, in this paper, we approached certain aspects of both theoretical and practical that may occur in the formation and development of dento-maxillary system in the age period of 12 years (after some authors, up to the age of 21 years). Material and method. The study was conducted between May 12 and June 25 2018 with the help of 55 dental practitioners. Results and discussions. The analysis of the answers provided by the participants in the study was performed by means of specific research methods. The results are eloquent and provide an overview of how dental practitioners manage the eruption of the wisdom tooth in the developmental processes of the dento-maxillary system. Conclusions. The eruption of the wisdom tooth is a certain element of growth, which must be taken into account in the future therapeutic approach of the morpho-functional imbalances of the dento-maxillary system

CONTROVERSED ASPECTS REGARDING POLYMERIZATION IN DENTAL TECHNOLOGY

Introduction. Any new class of materials almost always brings with it a new processing technology, regardless of the field in which it is operated. If this technology is not fully respected, all the benefits and performance of the material can be compromised. Purpose. In this material we tried not only a familiarization of the dental technicians, but rather their awareness regarding the polymerization processes, which intervene in various technologies for creating prosthetic restorations of any kind. Material and method. For this study, 53 dental technicians, who have completed various forms of schooling, answered 10 questions related to the different forms of polymerization used in the dental technology. Results and discussions. The answers obtained give us an image regarding the knowledge of the practitioners in this field, but also the way in which the theoretical knowledge is verified in practice by the daily experience of the respondents. Conclusion. There is a variation in the accumulated knowledge, a variation that can be based both on the studies followed by each participant in the study and on how they use the materials discussed in this article in daily practice

THE NEED FOR ORAL AND DENTAL HYGIENE IN PATIENTS WITH ISCHEMIC CARDIOMYOPATHY – PRELIMINARY STUDY

Introduction. Most patients over 40 years old who present for specific treatments in the dental offices have at least one general condition. Specialized research has shown that atherosclerosis is more common in patients with periodontal disease, which suggests that periodontal and cardiovascular disease may have similar causes. Purpose. Given the close connection between the two conditions, we have tried to draw the attention of patients to the importance of the prophylactic maneuvers performed by him or by specialized personnel and we also want to emphasize the importance of the dental hygienist in this process. Material and method. In order to carry out this study, a questionnaire with predetermined answers was used, applied to 57 patients with ischemic cardiomyopathy and who presented for specialized treatments in dental offices. Results and discussions. The answers really reflect how the patients understood the connection between the two conditions and how they perform the oral and dental hygiene. Conclusions. Given that many of the respondents do not perform the hygiene procedures correctly or incompletely, there is a need for a medical staff to discuss with patients to educate them on the importance and the way of hygiene and to perform the oral and dental hygiene procedures, in short the dental hygienist

PRELIMINARY STUDY ON ANTIMICROBIAL EFFICIENCY OF SOME COMMON CHEMICAL SUBSTANCES WITH A DISINFECTING CHARACTER ON IMPRESSION MATERIALS USED IN IMPLANT-PROSTHETIC REHABILITATION

Purpose. Starting from a very recent event on the market of disinfectants, where for many years very diluted disinfectant products were marketed in Romania, the antimicrobial activity being non-existent, we tried, on the basis of simple experiments, to study the antimicrobial efficiency of the active substances of some common products used on impression materials in implant-prosthetic rehabilitation, but also in classical dental prosthetics and in orthodontics and dentofacial orthopedics, products approved and used in the European Union. Material and method. 7 decontamination and/or disinfectant products were tested for qualitative screening for the sensitivity to different microbial strains as well as for quantitative testing of antimicrobial activity. Results and discussions. The study results for the two objectives are influenced by the active substances of the tested products. Conclusions. Decontamination of dental impressions must also become a certainty in implant-prosthetic rehabilitation, in classical dental prosthetics and in orthodontics and dentofacial orthopedics even if this work is disregarded and ignored by many practitioners

ASPECTS OF TESTING THE ADHESION ABILITY OF MICROORGANISMS FROM ORAL CAVITY TO COMMON IMPRESSION MATERIALS USED IN IMPLANT - PROSTHETIC REHABILITATION

Purpose. The adhesion ability of microorganisms present in the oral microbial plaque is a certainty for solid surfaces at this level (including coronal restorations, classical prosthetic restorations and implantsupported restorations fixed and mobile, orthodontic appliances). Therefore, in this study, we have attempted to demonstrate the ability of these microorganisms from the oral cavity to adhere on the surface of some common impression materials used in implant-prosthetic rehabilitation. Material and method. The study was conducted on the main impression materials used in implant supported prosthetic restorations as well as in dental medicine: irreversible hydrocolloids, zinc oxide eugenol pastes, polyethers, condensation and addition silicones. The study was conducted between June and July 2017. Results and discussions. With the help of microorganisms isolated from the 87 patients, an inoculation of standard samples of impression materials was performed. Verification of adherence was achieved at different time intervals, the results being significant. Conclusions. For the tested materials, it was noted that the degree of adhesion was either influenced by the products incorporated in the base substance or by the secondary products resulted from chemical setting of material

REPUTED DENTISTS AND / OR SPECIALISTS IN THE ORO-MAXILLO-FACIAL FIELD WHO WORKED IN FRENCH CIVIL AND MILITARY HOSPITALS DURING THE FIRST WORLD WAR (1914-1918)

The First World War was and is considered the most terrible conflagration of all time. Thus, over 65,000,000 soldiers made up the corps of land armies, naval and air forces, combat armies that participated in the conduct of military operations during the First World War. About 8,500,000 people died and more than 21,000,000 were injured. France was one of the countries most affected by this war, its medical services, including dentistry and oral and maxillofacial surgery, being completely obsolete. Thus, in this material, we tried to describe some important figures of French oral and maxillofacial dentistry and surgery, which were active in French civil and military hospitals during the First World War (1914-1918)