Complications of Fixed Full-Arch Implant-Supported Metal-Ceramic Prostheses

• Main Authors: Ignacio Gonzalez-Gonzalez, Hector deLlanos-Lanchares, Aritza Brizuela-Velasco, Jose-Antonio Alvarez-Riesgo, Santiago Llorente-Pendas, Mariano Herrero-Climent, Angel Alvarez-Arenal
• Format: Article
• Language: English
• Published: MDPI AG 2020-06-01
• Series: International Journal of Environmental Research and Public Health
• Subjects: fixed prostheses; full-arch prostheses; metal-ceramic prostheses; dental implant; mechanical complications; biological complications
• Online Access: https://www.mdpi.com/1660-4601/17/12/4250

We aimed to assess the biological and mechanical-technical complications and survival rate of implants of full-arch metal-ceramic prostheses, during five years of follow-up. 558 implants (of three different brands) retaining 80 full-arch metal-ceramic prostheses were placed in 65 patients, all of whom were examined annually for biological and mechanical-technical complications during the five years of follow-up. Descriptive statistics and univariate logistic regression were calculated. The cumulative survival rate of the implants was 99.8%, and 98.8% prosthesis-based. Mucositis was the most frequent of the biological complications and peri-implantitis was recorded as 13.8% at restoration-level, 16.9% at patient level and 2.0% at implant level. An implant length greater than 10 mm was shown to be a protective factor against biological complications. The mechanical-technical complications were associated with implant diameter, abutment/implant connection and retention system. Loss of screw access filling was the most frequent prosthetic complication, followed by the fracture of the porcelain. Full-arch metal-ceramic prostheses show a high prevalence of implant and prosthesis survival, with few biological and mechanical-technical complications.