期刊
INTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTS
卷 29, 期 1, 页码 141-151出版社
QUINTESSENCE PUBLISHING CO INC
DOI: 10.11607/jomi.3230
关键词
socket preservation; bone graft; dental putty; tooth extraction; primary implant stability; insertion torque
资金
- National Center for Research Resources [1UL1RR033183]
- National Center for Advancing Translational Sciences of the National Institutes of Health [8UL1TR000114-02]
Purpose: The purpose of this study was to compare the clinical efficacy of an anorganic bovine bone graft particulate to that of a calcium phosphosilicate putty alloplast for socket preservation. Materials and Methods: Thirty teeth were extracted from 24 patients. The sockets were debrided and received anorganic bovine bone mineral (BOV, n = 12), calcium phosphosilicate putty (PUT, n = 12), or no graft (CTRL, n = 6). The sockets were assessed clinically and radiographically 5 months later. Eight sockets in the BOV group and nine in the PUT group received implants 5 to 6 months postgrafting. The maximum implant insertion torque (MIT) was measured as an index of primary implant stability. The data were analyzed with the Mann-Whitney test. Results: Both test groups had statistically significantly less reduction in mean ridge width (BOV: 1.39 +/- 0.57 mm; PUT: 1.26 +/- 0.41 mm) in comparison to the control group (2.53 +/- 0.59 mm). No statistically significant difference was identified between the test groups. MIT for PUT was <= 35 N/cm(2) (MIT grade 4) for seven of the nine implants. MIT values in the BOV group ranged from grade 1 (10 to 19 N/cm(2)) to grade 4, which was statistically significantly lower than for the PUT group. The overall implant success rate was 94.1% (16 of 17 implants were successful). No implants were lost in the PUT group; one implant failed in the BOV group. Conclusion: Both tested bone substitutes can be recommended for preservation of alveolar ridge width following extraction. PUT might be more suitable for achieving primary stability for implants placed at 5 to 6 months postextraction.
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