Novel expandable short dental implants in situations with reduced vertical bone height—technical note and first results

摘要: Short implants often have the disadvantage of reduced primary stability. The present study was conducted to evaluate feasibility and safety a new expandable short dental implant system intended increase As “proof concept”, prospective clinical cohort designed investigate intraoperative handling, secondary stability (resonance frequency analysis), crestal bone changes, survival success, an innovative screw implant. From 2014 until 2015, 9 patients (7–9-mm vertical height) with 30 (length 5–7 mm, diameter 3.75–4.1 mm) were recruited consecutively. All in (age 44 80 years) could be inserted expanded without problems. Over 3-year follow-up period, success rate 28/30 (93.3%). mean quotients (ISQ) as follows: stability, 69.7 ± 10.3 ISQ units, 69.8 ± 10.2 units (p = 0.780), both significant differences between maxilla mandible (p ≥ 0.780). changes after loading (each measured from baseline) first year, 1.0 ± 0.9 mm 0.7 ± 0.4 mm mandible, second 1.3 ± 0.8 mm 1.0 ± 0.7 mm, respectively. Compared other studies, this indication, is acceptable. Implant shows high initial values. might extension functional rehabilitation group elderly limited height. Further long-term investigations should directly compare compressive standard implants.