Influence of the Size of the Microgap on Crestal Bone Changes Around Titanium Implants. A Histometric Evaluation of Unloaded Non‐Submerged Implants in the Canine Mandible

Abstract

These findings demonstrate, as evaluated by non-decalcified histology under unloaded conditions in the canine mandible, that crestal bone changes around 2-piece, non-submerged titanium implants are significantly influenced by possible movements between implants and abutments, but not by the size of the microgap (interface). Thus, significant crestal bone loss occurs in 2-piece implant configurations even with the smallest-sized microgaps (< 10 microns) in combination with possible movements between implant components.

X-ray evaluation at 5–6 years of Straumann implants (part 2)

“…This physiologic dimension, that was established early and maintained over time, appears to exist between the bone and the implant-crown interface around one-piece implants. It is consistent with the formation of a biologic width similar to that found around the natural dentition [10,11] (Fig. 1).…”

“…In this study, the initial bone level was set according to histological studies carried out by Hermann et al [8][9][10]. The authors implied that a physiologic bone loss occurs up to the level of the rough-smooth boundary of the implant.…”

“…Hermann et al [9,10] suggested that this bone remodeling was a consequence of biologic width formation around imArticle published by EDP Sciences plants, which was physiologically determined, stable and dimensionally similar to that around teeth.…”

“…Bone loss is an adaptation to biomechanical influences, and implant placement depth determines the level at which it stabilizes [8,10,11]. Bone loss occurs up to that interface, and bone rarely stays on the machined surface.…”

Desenvolvimento de plataforma elíptica osseointegrável para implante dentário, guias de perfuração e técnica cirúrgica de implantação - estudo em fêmures de cães

“…Hermann et al (2001) não correlacionaram o tamanho da interface entre implante e componente protético com a perda óssea da crista alveolar quando a interface estava posicionada 1 mm acima da crista óssea. Quando a interface estava 1 mm abaixo da crista óssea foram observadas as maiores perdas, porém os componentes não apresentavam condições para a desejada osseointegração num caso clínico.…”