Stabilization of the lower denture through the use of fine mini-implants: retrospective study

This retrospective study aimed at evaluating the survival rate of mini implants used for stabilizing the total prosthesis in patients affected by mandibular atrophy. The implants had a length of 10mm, a diameter of 2mm, and a monolithic spherical connection. Twenty-five patients were evaluated according to a clinical and radiographic protocol with a 24-month follow-up. Repeated measures ANOVA with time (T0, T1, and T2) as a within-subjects factor and Bone Quality (D1, D2, D3/D4) as a between-subjects factor was performed, with a statistical significance p<0.05. The success rate was higher in patients with D1 and D2 interforaminal bone quality. Good primary retention and minimal prosthetic loading are requirements for mini-implant survival. Within the limits of this study, the technique provides for the immediate stabilization of removable prostheses with minimal economic and biological cost, offering a valid alternative to implant-supported prostheses.