Buccal bone thickness adjacent to virtual dental implants following guided bone regeneration
| العنوان: | Buccal bone thickness adjacent to virtual dental implants following guided bone regeneration |
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| المؤلفون: | Thomas M. Johnson, Dane T. Swenson, Daniel J. Phillips |
| المصدر: | Journal of Periodontology. 90:595-607 |
| بيانات النشر: | Wiley, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0301 basic medicine, Bone Regeneration, Barrier membrane, medicine.medical_treatment, Dentistry, 03 medical and health sciences, 0302 clinical medicine, stomatognathic system, medicine, Humans, Dental implant, Bone regeneration, Retrospective Studies, Fixation (histology), Dental Implants, Bone Transplantation, business.industry, Dental Implantation, Endosseous, Membranes, Artificial, Alveolar Ridge Augmentation, 030206 dentistry, Buccal administration, stomatognathic diseases, Dental arch, 030104 developmental biology, medicine.anatomical_structure, Periodontics, Implant, business |
| الوصف: | Crestal bone thickness is a critical determinant of peri-implant tissue stability. This retrospective observational study sought to quantify the buccal bone thickness achieved adjacent to virtual dental implants following guided bone regeneration (GBR) surgery and evaluate the influence of patient- and procedure-related variables on buccal bone thickness.Cone-beam computed tomography (CBCT) images acquired from patients who had undergone GBR surgery between July 1, 2012, and November 7, 2016, were used for this analysis. In all cases, the GBR procedure involved a dense polytetrafluoroethylene (dPTFE) barrier membrane and a mineralized cortical particulate freeze-dried bone allograft (FDBA). Eighty-four virtual dental implants were placed at planned locations using CBCT images from 84 patients, and the adjacent buccal bone thickness was measured at each site. The effects of sex, age, estimated baseline ridge width, number of missing teeth in site, site type (tooth-bounded versus terminal position in arch), dental arch (mandibular or maxillary), arch location (anterior or posterior), smoking status, titanium reinforcement in the membrane, membrane fixation, and tenting screw use were assessed.The mean post-GBR buccal bone thickness adjacent to virtual dental implants was 2.24 ± 1.01 mm. Fifty-nine of 84 virtual implants (70%) exhibited buccal bone thickness 1.9 mm. GBR sites using membrane fixation produced significantly greater virtual implant buccal bone thickness than those without membrane fixation (2.31 ± 0.96 versus 1.15 ± 1.25 mm, P = 0.012). Virtual implant buccal bone thickness also exhibited moderate correlation with estimated initial ridge width (r = 0.43, P 0.0001). The alveolar ridge at 81 virtual implant sites (96%) was classified as good or satisfactory, meaning dental implants were actually placed at these sites, with or without additional grafting at implant placement.Observations in this study suggest GBR procedures using dPTFE membranes and FDBA result in favorable ridge dimensions for dental implant placement in most cases. However, additional augmentation at implant surgery may be necessary at ≈ 30% of sites, if buccal bone thickness 1.9 mm is intended. |
| تدمد: | 1943-3670 0022-3492 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c314b563c0ee69c1b014909d2eea6ea https://doi.org/10.1002/jper.18-0304 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....2c314b563c0ee69c1b014909d2eea6ea |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19433670 00223492 |
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