Un procedeu original de construcţie şi utilizare a lamboului nazogenian

Introduction. The classical naso-labial fl ap used for the reconstruction of tongue and oral floor presents multiple drawbacks. As an alternative to the classical one we present an original procedure of preparation of the naso-labial fl ap evaluated after seven years of use. Material and Method. The procedure we used was fi rst applied in the Oral and Maxillofacial Surgery Clinic in Cluj-Napoca seven years ago on patients suffering from tongue and/or oral floor malignancies in order to reconstruct these anatomical areas after the excision of the tumours in oncological safe limits. Most of its preparation procedure was made according to the classical method with some modifi cations in the preparation of its base. In order to enhance its covering area and functional availability and to eliminate some drawbacks, the route to the receptor area was changed. The submandibular course was used instead of the transbuccal one. Results. In all 21 patients who underwent surgery, a considerable enhancement of fl ap covering availability was obtained. It was able to cover defects ranging from the posterior limits of the tongue and oral fl oor to the tongue tip even beyond the midline. Unlike in the classical method there was no need to perform tooth extractions in dentulous patients. It is a one step procedure. Thus, the second step of the classical method was eliminated. Conclusions. The naso-labial fl ap with submandibular course offers covering and functional availability superior than the classical one with transbuccal route. It preserves and reconstructs the perimandibular anatomical sites. It also shortens the surgical treatment period of tongue and oral floor malignancies

The Presence of Periodontitis in Patients with Von Willebrand Disease: A Systematic Review

The aim of this systematic review and meta-analysis was to analyze the available evidence on the assessment of periodontal disease in patients with von Willebrand disease (VWD). An electronic search in three databases (PubMed, Web of Science, and Scopus) was conducted by three independent reviewers to identify cross-sectional, cohort, and clinical trial studies. Studies considered eligible for this review were evaluated according to the quality and risk assessment tool proposed by the CLARITY Group at McMaster University. In order to analyze the possible correlation of VWD patients and periodontitis and their susceptibility to bleeding during the periodontal screening phase, periodontal parameters evaluated were probing pocket depth (PPD), bleeding on probing (BOP), gingival bleeding index (GBI), and periodontal inflamed surface area (PISA). After a screening of 562 articles, three articles were selected for the qualitative analysis. Within the limitation of our review, VWD patients are not more susceptible to periodontitis as compared with non-VWD patients. Nevertheless, bleeding on probing and gingival index needs to be carefully taken into consideration during periodontal screening of VWD due to the possible presence of false positives

ORAL INTERDISCIPLINARY REHABILITATION IN THE CONTEXT OF NUMERICAL DEFICIT DENTAL ABNORMALITIES

Objectives: The purpose of this study was to track the frequency of agenesis in a group of children and adolescents who underwent treatment at the Orthodontic Clinic in Cluj-Napoca between 2014 and 2017. Material and Method: We studied a group of 700 children aged 7-18 years. Classification was based on gender, clinical abnormalities, teeth, associated anomalies. Results: In our study, 4% of patients had at least one dental agenesis, the upper lateral incisors being the most frequently affected (47%). In terms of gender, the female was affected with a higher percentage (69%). Conclusions: Treatment of hypodontia is often an individualized interdisciplinary treatment, depending on the severity of the anomaly and associated general disease

Comparison of the Eggshell and the Porcine Pericardium Membranes for Guided Tissue Regeneration Applications

Guided bone regeneration is frequently used to reconstruct the alveolar bone to rehabilitate the mastication using dental implants. The purpose of this article is to research the properties of eggshell membrane (ESM) and its potential application in tissue engineering. The study focuses on the structural, mechanical, and histological characteristics of ESM extracted from Gallus domesticus eggs and to compare them to a commercially available porcine pericardium membrane (Jason® membrane, botiss biomaterials GmbH, Zossen, Germany). Thus, histology was performed on the ESM, and a comparison of the microstructure through scanning electron microscopy and atomic force microscopy (AFM) was conducted. Also, mechanical tensile strength was evaluated. Samples of ESM were prepared and treated with alcohol for fixation and disinfection. Histological analysis revealed that the ESM architecture is constituted out of loose collagen fibers. However, due to the random arrangement of collagen fibers within the membrane, it might not be an effective barrier and occlusive barrier. Comparative analyses were performed between the ESM and the AFM examinations and demonstrated differences in the surface topography and mechanical properties between the two membranes. The ESM exhibited rougher surfaces and weaker mechanical cohesion attributed to its glycoprotein content. The study concludes that while the ESM displays favorable biocompatibility and resorb ability, its non-uniform collagen arrangement limits its suitability as a guided bone regeneration membrane in the current non-crosslinked native form. Crosslinking techniques may enhance its properties for such applications. Further research is needed to explore modifications and processing methods that could leverage the ESM’s unique properties for tissue engineering purposes

Bacterial and inflammatory behavior of implants in the early healing phase of chronic periodontitis

To assess the pattern of early bacterial colonization at implants and teeth in patients with a history of chronic periodontitis compared with a group of healthy subjects. Furthermore, the presence of host-derived markers at teeth and implants in the two subject groups was determined

The Importance of Atmospheric Microbial Contamination Control in Dental Offices: Raised Awareness Caused by the SARS-CoV-2 Pandemic

Background: In the context of the Sars-CoV-2 pandemic that started in 2020, more attention is being paid to the air quality in medical offices. The medical, economic and social implications of this crisis are unprecedented. Dental offices, particularly, were significantly affected by this pandemic due to the high exposure of dental workers, limited availability of personal protective equipment (PPE) and serious financial problems. Methods: Four different procedures were compared regarding their effectiveness in air contamination reduction, both from a biological point of view and from a management point of view: Fogging, Ultraviolet C (UVC) lamps, UVC air circulation units and natural ventilation. A total of 56 Petri dishes were used to evaluate air contamination. Results: All four procedures offered good results but the decontamination time and overall effect varied depending on the chosen method. Fogging was the only method that managed to remove all the identifiable pathogens. Conclusions: Fogging proved to be superior from a medical point of view, while the UVC air circulation unit proved to be more efficient from a management point of view

The importance of atmospheric microbial contamination control in dental offices: raised awareness caused by the SARS-CoV-2 pandemic

ackground: In the context of the Sars-CoV-2 pandemic that started in 2020, more attention is being paid to the air quality in medical offices. The medical, economic and social implications of this crisis are unprecedented. Dental offices, particularly, were significantly affected by this pandemic due to the high exposure of dental workers, limited availability of personal protective equipment (PPE) and serious financial problems. Methods: Four different procedures were compared regarding their effectiveness in air contamination reduction, both from a biological point of view and from a management point of view: Fogging, Ultraviolet C (UVC) lamps, UVC air circulation units and natural ventilation. A total of 56 Petri dishes were used to evaluate air contamination. Results: All four procedures offered good results but the decontamination time and overall effect varied depending on the chosen method. Fogging was the only method that managed to remove all the identifiable pathogens. Conclusions: Fogging proved to be superior from a medical point of view, while the UVC air circulation unit proved to be more efficient from a management point of view

New Dental Implant with 3D Shock Absorbers and Tooth-Like Mobility—Prototype Development, Finite Element Analysis (FEA), and Mechanical Testing

Background: Once inserted and osseointegrated, dental implants become ankylosed, which makes them immobile with respect to the alveolar bone. The present paper describes the development of a new and original implant design which replicates the 3D physiological mobility of natural teeth. The first phase of the test followed the resistance of the implant to mechanical stress as well as the behavior of the surrounding bone. Modifications to the design were made after the first set of results. In the second stage, mechanical tests in conjunction with finite element analysis were performed to test the improved implant design. Methods: In order to test the new concept, 6 titanium alloy (Ti6Al4V) implants were produced (milling). The implants were fitted into the dynamic testing device. The initial mobility was measured for each implant as well as their mobility after several test cycles. In the second stage, 10 implants with the modified design were produced. The testing protocol included mechanical testing and finite element analysis. Results: The initial testing protocol was applied almost entirely successfully. Premature fracturing of some implants and fitting blocks occurred and the testing protocol was readjusted. The issues in the initial test helped design the final testing protocol and the new implants with improved mechanical performance. Conclusion: The new prototype proved the efficiency of the concept. The initial tests pointed out the need for design improvement and the following tests validated the concept