A 7-year Follow-up of 93 Immediately Loaded Titanium Dental Implants

Abstract

Recently, several experimental and clinical investigations found that immediately loaded implants obtained satisfactory levels of osseointegration with high success percentages. Only a few long-term studies of immediately loaded implants have been reported in the literature. The aim of this study was a 7-year clinical and radiographic follow-up of 93 immediately loaded dental implants in human patients. Eleven patients were consecutively enrolled in this study. A total of 7 full and 9 partial edentulous arches were rehabilitated. Patients presented a completely edentulous mandible (n=6), a completely edentulous maxilla (n=1), mandibular posterior edentulous areas (n=5), or a posterior maxillary edentulous area (n=1). Patients were rehabilitated with a bar and an overdenture (n=4), a provisional prosthesis of 3 to 12 elements (n=11), or a metal-ceramic bridge of 10 elements (n=1). A total of 93 implants were inserted and loaded within a 24-hour time frame. Six implants failed in the first year after loading. No more failures were observed in the following 6 years, and all the other implants were well integrated from a clinical and radiographic point of view. The cumulative success rate at 7 years was 93.5%, and the prostheses survival rate was 98.5%. The mean marginal bone loss was 0.6 mm after the first year and 1.1 mm at the 7-year evaluation. Primary stability is one of the most important parameters in immediately loaded implants because it avoids micromotion at the bone-implant interface. Four of the 6 failures in our patients occurred in partially edentulous patients; an excessive load applied to these small bridges could be the reason for the failure. Also, the bone quality is important, for 3 of our failed implants had been inserted in D3 bone. Our clinical and radiographic results have shown that these immediately loaded implants have remained osseointegrated for a long period. Our results point to the possibility of using the immediate loading technique in selected and well-informed cases.

The Current Knowledge of Genetic Susceptibility Influencing Dental Implant Outcomes

“…The process is divided into early and late events: early failure occurs before implant load, and late failure takes place after the implant has received occlusal load (Esposito et al, 1999). Early failures have been related to smoking (Ganeles and Wismeijer, 2004), aging (Moy et al, 2005), systemic diseases (Quirynen and Teughels, 2003;Weyant and Burt, 1993), bone quantity and quality (Degidi and Piattelli, 2005;Rosenberg et al, 2004;Stanford, 2003), surgical trauma (Gruica et al, 2004), and contamination during surgical procedure (Kuttenberger et al, 2005;van Steenberghe et al, 1990). Late failures have been related to peri-implantitis (Rosenberg et al, 2004), and occlusal overload (Misch et al, 2004).…”

Carga Imediata Sobre Implante Na Região De Pré-Maxila: Relato De Caso Clínico

“…A estabilidade inicial tem sido considerada por diversos autores como um fator de sucesso para a carga imediata. A transmissão de carga aos implantes pode causar micromovimentos, resultando em perda óssea marginal ou comprometimento da osseointegração (Romanos, 2004;Degidi, 2005;Chiapasco, 2004;Dragoo, 2006). De acordo com alguns autores (Small,&Tarnow; a micromovimentação dos implantes deve ser menor que 100 micrometros (µm) para que possa ocorrer efetiva formação óssea, promovendo contato funcional direto entre osso e implante.…”

Immediate Loading Implant: Need of Hour : A Case Report

“…2,3 IL may be described as functional loading (With occlusal contacts) immediately after implantation (or within 3-4 days after surgery) without waiting for the healing period. 4,5,6 IL has gained popularity due to less tissue trauma, reduced overall treatment time, decreased patient's anxiety and discomfort, high patient acceptance and better function and aesthetics. 7,8 According to the original Brånemark protocol, dental implants, regardless of their design or system, required an undisturbed healing period of three months in mandible and six months in maxilla.…”