Background: Modern dentistry demands accurate finish line designs for abutments. CAD/CAM systems enable the fabrication of thin prosthetic structures to fulfill this requirement. The aim of this study is to research the mechanical resistance of customized implant abutments with different types of marginal design in laboratory environment. The null hypothesis is there is no difference in fatigue loading and compression strength in custom implant abutments with chamfer or vertical marginal design. Methods: The study model includes 60 specimens of implant suprastructures, organized into four test groups, by the margin design and used material: Group A—suprastructures, made of monolithic zirconia implant crown and titanium custom abutment with vertical marginal design; Group B—suprastructures, monolithic lithium disilicate implant crown and titanium custom abutment with vertical marginal design; Group C—suprastructures, made of monolithic zirconia implant crown and titanium custom abutment with chamfer marginal design; and Group D—suprastructures, made of monolithic lithium disilicate implant crown and titanium custom abutment with chamfer marginal design. All samples were subjected to fatigue loading test in chewing Simulator CS-4 (SD-Mechatronik, Westerham, Germany) for 1250,000 cycles, at a frequency of 2 Hz. The specimens, which survived, was conducted to compressive strength test in universal testing machine Instron M 1185 (Instron, Norwood, MA, USA). Results: The results analysis highlighted Group A as the most resistant to compressive forces (4411 MPa). Group D was with lowest values (1864 MPa)—twice than Group A. Group B (3314 MPa) had lower results than Group A, but higher than Groups C (3130 MPa) and D. Conclusion: Compression strength significantly depends on the choice of marginal design of implant abutments. Vertical margin design has better performance, that chamfer one.

Ukrašavanje zuba je praksa prisutna u brojnim civilizacijama širom sveta, koja često prevazilazi čistu estetiku i ulazi u sferu identiteta, rituala i duhovnosti. Od umetanja dragog kamenja kod Maja, preko crnjenja zuba u Japanu, do savremenih trendova poput grillz-a, dentalna ornamentacija svedoči o raznolikosti ljudskih kulturnih izraza. Ovaj rad istražuje istorijski razvoj ukrašavanja zuba, njegovu simboliku i značaj kroz vekove, uz razmatranje uticaja na savremenu stomatološku praksu.

Tooth loss is a significant global issue, particularly among the elderly, as it impairs essential stomatognathic functions like chewing, swallowing, speech, and aesthetics. Edentulism can also affect nutrition, overall health, and quality of life, leading to functional, psychological, and social challenges. This research aimed to determine whether the type of prosthetic restoration affects patients' overall satisfaction and the extent to which socio-economic factors affect quality of life. The study included 120 patients of both genders and over 60 years of age, who were divided into two groups: patients with conventional complete dentures (Group 1) and patients with complete dentures with mini-implants (Group 2). The respondents completed the Oral Health-related Quality of Life (OHRQoL) questionnaire, which was divided into four parts: socio-demographic data, hygiene habits, changes in oral functioning, and changes in ways,30 of life related to oral health. Patients with conventional complete dentures had significantly more frequent speech impairment (80.3%), swallowing (47.5%), and chewing (82.0%), compared to patients with mini-implants. The association of speech, swallowing, and chewing disorders with educational level and income was also demonstrated. They were also significantly more stressed, more nervous, more distracted by daily activities, and more uncomfortable than another group of subjects. Patients rehabilitated with mini-implant-supported complete dentures demonstrated higher overall satisfaction levels. The level of education and income have the highest impact on the quality of life of all socioeconomic factors.