Biomechanical, Biologic, and Clinical Outcomes of Undersized Implant Surgical Preparation: A Systematic Review.

摘要: Purpose: To compile the current evidence on biomechanical, biologic, and clinical outcomes of undersized surgical preparation protocols in dental implant surgery. Materials Methods: An electronic search using three different databases (PubMed, Web Science, Cochrane Library) a manual hand were performed including vitro, animal, studies published prior to October 2015. Studies which an drilling protocol was compared with nonundersized included. Results: From initial selection 1,655 titles, 29 met inclusion criteria, 14 7 6 biologic 2 clinical. Due methodologic variation, meta-analysis not performed. Several showed that implants inserted approach reached significantly higher insertion torque value than conventional low-density substrates, while this effect is less evident if thick cortical layer present. Similar results terms boneto- contact (BIC) achieved longer term between protocols. Results short inconclusive. Clinical did show negative for drilling, although sparse. No data are available marginal bone loss. Conclusion: biomechanical standpoint, effective increasing bone. Biologic response long-term healing after placement comparable protocol. indicate performing safe procedure; however, more extensive needed confirm these data.