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- Barone, Antonio, et al.
(författare)
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Maxillary Sinus Augmentation Using Prehydrated Corticocancellous Porcine Bone: Hystomorphometric Evaluation after 6 Months.
- 2012
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Ingår i: Clinical implant dentistry and related research. - : Wiley. - 1708-8208 .- 1523-0899. ; 14:3, s. 373-379
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Tidskriftsartikel (refereegranskat)abstract
- Background: Insufficient alveolar bone height often prevents the placement of standard dental implants in the posterior part of edentulous maxilla. In order to increase adequately the vertical dimension of the reabsorbed alveolar process, a sinus lift procedure is often necessary. The aim of this study was to evaluate histologic results of a prehydrated corticocancellous porcine bone used in maxillary sinus augmentation. Methods: Patients (age 18-70 years) with a residual bone height requiring a maxillary sinus augmentation procedure to place dental implants were eligible for this study. All patients were treated with the same surgical technique consisting of sinus floor augmentation via a lateral approach. The space obtained by elevation of the mucosa wall was grafted with prehydrated and collagenated corticocancellous porcine bone. Biopsies were harvested 6 months after the augmentation procedures. Results: Twenty-four patients were enrolled. The mean percentage of new formed bone was 43.9±18.6% (range 7.5-100%), whereas the mean percentage of residual graft material was 14.2±13.6% (range 0-41.9%). The new bone/residual graft material ratio in the maxillary sinuses was 3.1. The mean soft tissues percentage was 41.8±22.7% (range 0-92.5%). Conclusion: The present study suggested that porcine bone showed excellent osteoconductive properties and could be used successfully for sinus augmentation. Moreover, the porcine bone showed a high percentage of reabsorption after 6 months; this might be because of the presence of collagen and the porosity of the graft material.
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| 2. |
- Marchionni, Saverio, et al.
(författare)
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The effectiveness of systemic antibiotic prophylaxis in preventing local complications after tooth extraction. A systematic review.
- 2017
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Ingår i: European journal of oral implantology. - 1756-2406. ; 10:2, s. 127-132
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Tidskriftsartikel (refereegranskat)abstract
- To assess the beneficial or harmful effects of systemic prophylactic antibiotics at extraction of teeth, apart from third molars, vs no antibiotic or placebo administration. Furthermore, if antibiotics are beneficial, to determine which type, dosage, duration and timing of administration is the most effective.The Cochrane Oral Health Group's Trials Register (to 30January2016) and MEDLINE (1January1950 to 30January2016) were searched. There were no language or date restrictions placed on the searches of the electronic databases. Randomised controlled trials (RCTs) of parallel group design, with a follow-up of at least 2 weeks, comparing the administration of various prophylactic antibiotic regimens vs no antibiotics to people undergoing extraction of teeth, not including third molars, were included. Outcome measures were postoperative complications/adverse events, post-operative pain and swelling. Screening of eligible studies, assessment of the risk of bias of the trials and data extraction were conducted in triplicate by three independent review authors. Results were to be expressed as risk ratios (RRs) using a random-effects model for dichotomous outcomes, with 95% confidence intervals (CIs). Heterogeneity, including both clinical and methodological factors, was to be investigated.No relevant RCT was identified.There is no RCT to determine if the antibiotic therapy is needed at extraction of teeth, excluding third molars. Properly designed and conducted RCTs are needed to understand the role of the antibiotic therapy for tooth extraction. Conflict-of-interest statement: This systematic review was self-funded and the authors have no conflict of interests to declare.
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