The importance of remaining teeth reconstruction in the definite obturator for a hemimaxillectomy patient.

OBJECTIVE: The aim of this clinical report was to present and discuss the clinical procedure and the treatment considerations of prosthetic rehabilitation for hemimaxillectomy patients. DESIGN: A 61-year-old man was successfully treated with all the remaining teeth reconstruction including replacing the implant-supported anterior fixed prosthesis and maxillary obturator. CONCLUSIONS: An appropriate obturator design, remaining teeth reconstruction, and establishment of a proper vertical dimension of occlusion are important for acceptable facial appearance and patient satisfaction.

Self-cutting blades and their influence on primary stability of tapered dental implants in a simulated low-density bone model: a laboratory study.

OBJECTIVE: This study tested the hypothesis that there would be differences in primary stability due to the presence of self cutting blades. We investigated the effect of a self-cutting blade implant design on the primary stability of tapered dental implants in a simulated low-density bone model. STUDY DESIGN: Implant fixtures with 2 different designs, one with self-cutting blades and the other without self-cutting blades, were fabricated in the same implant system. Insertion torque, resonance frequency analysis, reverse torque, and pull-out and push-in tests were evaluated in grade no. 10 solid rigid polyurethane foam. RESULTS: All 5 assessments of the group without self-cutting blades were significantly higher than those of the self-cutting group (P < .001). CONCLUSIONS: The implants without self-cutting blades create a lateral compression with increased contact surface area and consequently improve the primary stability in a simulated low-density bone model.