Dental implant treatment is considered the gold standard today for the elimination of tooth loss. In this study, it was aimed to evaluate the level of knowledge about dental implant treatments of patients referred to Tokat Gaziosmanpaşa University Faculty of Dentistry Prosthetic Dentistry Clinic. Material and Method:A total of 296 patients, 166 women and 130 men, participated in the study. A multiple-choice standardized questionnaire containing questions about demographic information and implant treatment was applied to the patients. People who had implants before, had no tooth deficiency and had no knowledge of implant treatment were not included in the study.Results: 42.2% of the patients obtained information about implants from doctors or dentists. 74.7% of the participants preferred to have the implant surgery phase done by a maxillofacial surgeon, and 66.2% preferred to have prosthesis over the implant done by a prosthesis specialist. When the questionnaire responses of the patients were evaluated with the age variable, it was observed that the awareness level of the individuals under the age of 35 about dental implants was statistically significantly higher (p<0.05). Conclusion:When the results of this study were evaluated, it was seen that individuals who needed prosthetic dental treatment due to tooth deficiency did not have sufficient knowledge about dental implants. In order to provide patients with more accurate information about dental implants, it is necessary to reach the resources that patients use to obtain information.
Objectives:The aim of this study is to evaluate the stress, which is caused by the fixed prosthesis under oblique forces around dental implants and bone by using different infrastructure materials and different inclusions, by 3-dimensional (3D) finite element analysis (FEA) method.Materials and Methods: 3D-FEA models of mandible, dental implants and prostheses were designed. The anterior and posterior implants were designed 10 mm in length and 4.3 mm in diameter. The anterior implant was placed parallel to each model. Posterior implant designed to make inclinations those mesial 17, distal 17, buccal 17, lingual 17. Implant supported fixed restorations were divided into 3 main groups according to the infrastructure materials. These materials were; chromium-cobalt, zirconia, polyetheretherketone (PEEK). In each model, a total of 500 N oblique force was applied from the buccal tubercle crests to the buccolingual direction at an angle of 30 degrees to the long axis of the tooth. Maximum principal (tensile) stress and minimum principal (compressive) stress values in the bone models were taken. In addition, von Mises stress values were obtained from implants and substructure materials.Results: When the stress findings in the mandible during oblique loading were evaluated, it was found that the stresses on the cortical bone were higher than the stresses on the trabecular bone. It was observed that the highest stress values occurred in the implants. Conclusions:It is thought that chromium-cobalt and zirconia-based ceramic bridge restorations are more positive in terms of stress distribution than PEEK-based ceramic bridge restorations.
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