Dental implants have been used clinically in a routine manner to restore completely edentulous mandibles. A recent systematic review of the literature conducted by Bryant1 describes the 5-year cumulative survival rates of mandibular fixed and removable prostheses between 83% and 100%, with corresponding levels of crestal bone loss up to 1.1 mm the first year and 0.4 mm per year thereafter. The author included in his review studies using the classical two-stage surgical approach, whereby the implant is initially covered underneath the mucosa and kept unloaded for 4–6 months.2 However, over the past decade changes in dental implant design and surface configuration combined with an improved understanding of the biological and biomechanical aspects have improved the clinical outcome of implant treatments.3 These advancements have led to the one-stage surgical procedures in conjunction with earlier loading, especially in the completely edentulous mandible.
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