Background/Aim. Dental appearance plays an important role in practically all personal social interactions. The main factors that define the dental appearance are tooth colour, shape and position, quality of restoration, and the general position of the teeth in arch, especially in the anterior region. The aim of this study was to evaluate the impact of dental status (tooth shape, fracture, dental and prosthetic restorations and presence of plaque) on patient's satisfaction with the dental appearance, controlling for the age and gender. Methods. A total of 700 Caucasian subjects (439 women) aged 18-86 (median 45 years) participated in the cross-sectional study. Study included clinical examination and self-administrated questionnaire based on selfperceived aesthetics and satisfaction with the appearance of their maxillary anterior teeth. Results. A regression analysis demonstrated that presence of dental plaque, tooth fracture, composite fillings and crowns had significant independent contribution and were negative predictors of satisfaction with teeth appearance. Participants with presence of plaque on upper teeth (p < 0.001), fractures (p = 0.005), composite fillings (p < 0.001) and crowns (p = 0.032) were less satisfied than those without it. Model explains 12% or variance of general satisfaction with the appearance of maxillary frontal teeth (p < 0.001) and the major contributors are composite fillings (5.3%) and plaque (3.2%). Tooth shape, age and gender were not significant predictors of satisfaction. Conclusion. Satisfaction with the teeth appearance is under the influence of many factors with significant negative influence of presence of dental plaque, fractures, composite restorations, and crowns. ApstraktUvod/Cilj. Izgled zuba igra važnu ulogu u praktički svim kontaktima jedne osobe. Glavni faktori koji definišu izgled zuba su boja, oblik i pozicija zuba, kvalitet restauracije i položaj zuba u zubnom luku, posebno u prednjem delu. Cilj ovog rada bio je da se utvrdi uticaj životnog doba, pola, frakture zuba i plak indeksa na zadovoljstvo pacijenta izgledom zuba. Metode. U istraživanju je učestvovalo 700 ispitanika u životnom dobu 18-86 godina (medijana 45 godina). Istraživanje je bilo bazirano na kliničkom pregledu i ispunjavanju upitnika koji je uključivao pitanja bazirana na samoproceni zadovoljstva izgledom gornjih prednjih zuba. Rezultati. Regresijska analiza je pokazala da dentalni plak, frakture zuba, kompozitni ispuni i krunice imaju statistički značajan uticaj i da su negativni prediktori zadovoljstva izgledom zuba. Ispitanici s plakom na gornjim prednjim zubima (p < 0,001), frakturom (p = 0,005), kompozitnim ispunima (p < 0,001) i krunicama (p = 0,032) bili su manje zadovoljni od ispitanika bez njih. Model objašnjava 12% varijanse generalnog zadovoljstva izgledom gornjih prednjih zuba (p < 0,001) kao i najveći učinak imaju kompozitni ispuni (5,3%) i plak (3,2%). Oblik zuba, životno doba i pol nisu bili značajni prediktori zadovoljstva. Zaključak. Zadovoljstvo izgledom zuba je pod uticajem mnogih fa...
Objectives: The purpose of this study was to evaluate shade matching ability of dental professionals and students using the VITA 3D-Master shade guide. Materials and methods: A hundred and twenty participants have been assigned to one of four groups as follows: specialists in prosthodontics (SPs), residents in prosthodontics (RPs), dental technicians (DTs) and dental students (DSs). The Toothguide Training Box (TTB) was used to test the participants’ shade-matching ability based on using 3 exercises and a final test. The mistakes were recorded during the exercises and mistake ratios (MR) were calculated. Time, scores, and color difference values (ΔE) were recorded and calculated. The one-way ANOVA was used to analyze the differences, and multiple regression analyses were used to evaluate the relationship in mean MRs, time, score and ΔE values between the groups. Results: Male participants needed significantly greater amount of time than females to complete the final test (P<0.05). Male SPs achieved a significantly lower percentage of mistake ratios in second exercise than RPs (P<0.05), needed significantly less time than DSs to complete the final test and achieved significantly higher scores than RPs (P<0.05). Female SPs assessed the highest and DSs and RPs the lowest color differences (P<0.05). The results obtained from the exercises and final tests highly affected the amount of estimated color difference in both male and female groups (by 78% and 76%, respectively). Conclusions: Within the population tested, gender of the participants showed a significant impact on quality of shade matching of dental professionals and students.
Patients with total edentulism can be treated with fixed or mo- bile prosthetic implant rehabilitation with dental implants as part of implanto-prosthetic therapy. Of the three dental implant loading options/protocols (conventional, early loading, and im- mediate loading), removable prosthetic works are most often conventionally loaded and then they represent standard and reliable forms (with a high success rate) of implanto-prosthetic therapy.
Piezo surgical devices are innovations in dental medicine. Their most frequent use is in oral surgery and dental im- plantology procedures. Manufacturers of these devices de- clare that they are minimally invasive and are recommend- ed for interventions where there is a risk of damage to anatomical structures. They are especially practical during maxillary sinus augmentation techniques to minimize pos- sible perforation the Schneider membrane during its ma- nipulation and lifting. The author of the article will describe his practice use the acteon – piezotome cube device.
The concept of human dental occlusion represents much more than the mere physical contact of the biting surfaces of opposing teeth. It is not a static, unchanging, structural relationship, but rather a dynamic, real, physiological relationship between different tissue systems. It is best defined as the functional relationship between the components of the masticatory system, which includes the teeth, the periodontium, the neuromuscular system, the temporomandibular joints and the craniofacial skeleton. Biologically, occlusion represents a coordinated functional interaction between different cell populations of the masticatory tissue systems that differentiate, model, remodel, destroy and regenerate. When the functional balance of the masticatory system is disturbed or when occlusion is restored by various types of prosthetic restorations, specific goals of occlusal treatment become important, especially today with the rapid insertion of dental implants. The aim of this chapter is to highlight the characteristics of dental occlusion in relation to the characteristics and requirements of ‘prosthetic occlusion’ for different types of prosthetic restorations supported by natural teeth, gingiva, alveolar ridges and dental implants. A particular focus in writing the chapter is the analysis of the scientific literature on the interrelationship between the so-called occlusion concepts and the biomechanical aspects of different types of implant prosthetic restorations.
Titanium and titanium alloys have been used in dentistry for many years, to manufacture dental implants and other prosthetic appliances. Due to their excellent mechanical properties, corrosion resistance, and biocompatibility, they can completely replace the use of traditional alloys in modern dentistry. With the progress and development of new technologies, the three-dimensional (3D) printer was designed, namely the technology of creating three-di- mensional physical objects from digital data (CAD-CAM system). The case presented in the paper describes the way of the manufacturing of titanium-ceramic bridg- es, with the help of computer-aided design and printing (CAD-CAM).
The main goal of modern removable prosthodontics is to restore the normal appearance, function, esthetics and speech in each completely edentulous patient. However, if all teeth are missing in a patient, it becomes very complicated to achieve it using traditional protocols. Therefore, implants were introduced into removable prosthodontics to ensure better retention and stability of the conventional dentures. In case of a large amount of bone missing in the jaw it is necessary to ensure the functioning of the dentures constructing various additional stabilizing and retentive prosthodontic solutions on the osseointegrated implants. Numerous types of attachment systems have been used recently for relating implant-retained overdentures to underlying implants: basically splinting (various bar shape designs) and non-splinting attachments (various ball type attachment, magnet attachment, telescopic coping systems). Indications for their use depend on the surgical and prosthodontic factors such as the number and position of the implants, the amount of free intermaxillary space and the type and size of the overdentures. Different indications, types of the overdentures and the attachment systems will be discussed in this chapter.
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