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The aim of this study concerns the individualization of correlative aspects of the type of smile, teeth and visibility of how the therapeutic solution chosen, according to the particular clinical case provides ultimate clinical success through the aesthetic requirements. The analyzed group was represented by 40 patients, diagnosed with partial edentation; The sample was evaluated through descriptive...
The newly emerging technology of 3D printing when applied for the production of dental devices is significantly limited by the availability of photo curable materials. This manufacturing technique is used nowadays only for small dental bridges. In this paper we introduce an improved polymeric nanocomposite as specific material for manufacturing 3D printed dental prosthesis. Based on the proposed nanocomposite:...
The main objective of this study is to generate an optimum solution for capacity planning and appointment scheduling issues, which are frequently encountered in clinical flows with various route and treatment periods at dental hospitals. With this study, given the flow of different existing treatment processes belonging to patients are optimized, and also the continuity of the system is ensured by...
The number of denture wearers is increasing as the number of elderly people continually growing. Different materials used in the manufacture of total prosthesis may cause the appearance of intra-oral lesions, even more for patiens with associate general diseases. It appears that achieving total denture plates with the addition of palladium and / or silver prevents prosthetic lesions.
This paper presents a comparison between the maximum von Mises stress values an maximum displacements appeared under occlusal loading in different areas of a mandibular class I Kennedy removable partial dentures (RPD) with ball attachments, in two situations: teeth supported only, and implant and teeth supported. The first 3D model was created for class I Kennedy RPDs with only six anterior teeth...
The paper proposes a system for an early warning on the prosthesis performance, in particular in terms of micro-displacements of the implant-prostheses connection, enabling actions to prevent fatal damages to the structure. The system includes a sensor for micro-displacement to be inserted in the prosthesis volume, with embedded wireless communications capabilities. Key elements of the system are...
Mandibular mobility plays a significant role in human daily lives, enabling food intake, respiration, speaking, and other oral activities. However, as for the patients suffering from mandibular mobility disorders, their mandible functions are deteriorated, which severely affects their quality of life. In this paper, we present a new solution to recover mandibular mobility: a soft oral rehabilitation...
Przeprowadzone badania wykazały, że sposób polimeryzacji pod ciśnieniem oraz w podwyższonej temperaturze przyczynia się do zwiększenia wytrzymałości połączenia pomiędzy analizowanymi materiałami, natomiast nie stwierdzono statystycznie istotnych różnic pomiędzy poddanymi ocenie rodzajami żywic akrylanowych.
Standardized digital images of maxillary dental casts of 47 subjects were analyzed using MATLAB software whereby the two hamular notches and the incisive papilla defines the Cartesian vertical and horizontal axes, as well as the origin. The angle and length of the midpoints of the anterior teeth, mesiobuccal and distobuccal cusp of the posterior teeth were measured from the origin and denoted as θ...
This work discusses the effect of inkjet-printed silver nanoparticle (SNP) arrays on oral bacteria found in saliva in order to determine their potential as a possible path of infection prevention on oral implants and devices. A piezoelectric inkjet printer (FUJIFILM Dimatix) was used to print an aqueous solution of 0.6 wt% SNPs. Tests were performed by growing oral biofilms from saliva using tryptic...
A new method is being proposed in this paper to ascertain the stability of the dental implant after its placement in situ. One of the established methods of doing this is by monitoring the change of resonance frequency of the system with time which is typically referred to as Resonance Frequency Analysis [1]. Traditionally, the resonance frequency is identified from the magnitude of measured voltage...
In this work, a two-spindle CNC machine tool used for dental restorations is designed. In view of the fact that its special characteristics of the applications, the mechanical structure and main part of the machine tool have been designed and chosen with careful calculation. The characteristics of denture processing have been analyzed by using functional analysis approach, then, the mechanical structure...
The aim of the research is to investigate the connection that may exist between the changes of the pronunciation of the /v/ and /f/ French fricative consonants and the dentistry pathologies. We perform this analysis at the formantic level, focusing on the statistical features like the median values of the F1-F4 formants, the first and third quartiles of the F1 formant, and on the presence or absence...
The application of dental implants proposes a successful treatment both partially and fully edentulous patients. However, the placement of implants is not without risk due to anatomically complex operation sites in the cranio-maxillofacial region. Therefore, in the field of oral implantology, there is a trend towards computer-aided implant surgery. In this study, an integrated surgical planning and...
Recent years, a dental implant surgery has been focused and has been widely prevalent. At present, the limited doctor had acquired the skill for the surgery. It is because of that the dental implant surgery has risks of an accident. Therefore, the high quality skill for the surgery is required. A dental hand-piece (dental drill) is used to make the hole which is for insertion of an artificial tooth...
Diagnostic orthodontic and prosthetic procedures commence with an initial examination, during which a number of individual findings on the occlusion or malocclusion are clarified. Geometrically calibrated images aid in the comparison of several different steps of the treatment and show a significant variation between patients before and after treatment. Geometric morphometrics represents a new approach...
Implant-abutment connection plays an important role in the long-term success of dental implant. It should be able to resist bacterial leakage. Colonization of bacterial in microgaps along implant-abutment interfaces will lead to inflammatory reaction. One of the factor which have been identified to produce microgaps is micromotion. This study was conducted to analyse micromotion and stress distribution...
In this paper, effect of the implant thread profile on the stability and osseointegration at the peri-implant bone were evaluated by finite element analysis. These study include five different common threads profile of implant body - buttress, reverse buttress, V-shape, sinusoidal and square - that were evaluated via finite element analysis. Three dimensional model of a mandible was reconstructed...
In the field of implant dentistry, there is a trend towards computer-aided preoperative planning and CT-derived surgical templates. However, for the cases involving patients with metallic crowns or fixed partial dentures, streak artifacts in the original computed tomography (CT) images are a major problem, which often inevitably affects the design and manufacturing the surgical templates. In this...
Conventional tooth implants lacks the damping prosperities of the periodontal ligaments (PDL) compound. It may therefore, disrupts the natural function of implant and leads to excessive stress and strain in jaw bone. Our new proposed implant has the viscoelastic properties needed to overcome such difficulties. A three dimensional finite element model of modified implant was developed and was subjected...
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