{"created":"2021-03-01T06:31:13.337918+00:00","id":25718,"links":{},"metadata":{"_buckets":{"deposit":"ba29c139-7108-430b-a708-ed0371f2f69c"},"_deposit":{"id":"25718","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25718"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00025718","sets":["432:1291:1292:1314","453:456"]},"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Clinical study of secondary bone grafting using autogenous particulate cancellous bone and marrow harvested from the illiac crest in alveolar clefts"}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2002-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"61","bibliographicPageStart":"53","bibliographicVolumeNumber":"32","bibliographic_titles":[{"bibliographic_title":"新潟歯学会雑誌"},{"bibliographic_title":"新潟歯学会雑誌","bibliographic_titleLang":"en"}]}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The purpose of this study was to evaluate bone bridge formation after early secondary bone grafting in patients with complete cleft lip and palate, using dental X-ray films and X-ray computed tomography. The subjects were 73 patients (86 alveolar clefts) received two-stage palatoplasty with a Hotz plate (two-stage group), followed by bone grafting using autogenous particulate cancellous bone and marrow harvested from the iliac crest. For comparison with the two-stage group, 20 patients (22 alveolar clefts) who received one-stage palatoplasty before the age of two were selected as a control group (one-stage group). The presence of bone bridge, upper margin of bone bridge and both vertical and buccolingual length of bone bridge were compared statistically between the two groups. The vertical length of the bone bridge above 11mm, which was the same length as the maxillary incisor's root, was observed to be 87.7% (unilateral) and 66.6% (bilateral) in two-stage group, while it was 62.6% (unilateral) and 33.4% (bilateral) in one-stage group. The upper margin of the bone bridge was more than three-quarters of the length of the central incisor's root both in unilateral and bilateral cases in the two-stage group than in the one stage group statistically (unilateral p<0.005, bilateral p