Abstract:
:The objectives of this study were to evaluate the results of guided tissue regeneration (GTR) treatment of intrabony defects with two kinds of bioresorbable membranes, with deproteinized bovine bone (Bio-Oss) used as an adjunct. Twenty-eight patients with at least one intrabony defect with a probing pocket depth (PPD) >/=7 mm and radiographic evidence of an intrabony component (IC) >/=4 mm were randomly treated with either a polylactic/polyglycolic (PLA/PGA) acid copolymer or a collagen bioresorbable membrane combined with Bio-Oss implantation. Immediately prior to surgery (baseline) and after 1 year, the following parameters were recorded: (1) PPD, (2) gingival recession (REC), (3) probing attachment level (PAL), (4) presence/absence of plaque (PI), and (5) presence/absence of bleeding on probing (BOP). Occurrence of membrane exposure during healing and the smoking habits of the patients were also recorded. Statistical analysis was carried out using chi(2) -tests and t-tests. There were no significant differences between the two membrane groups regarding the clinical parameters at baseline. Statistically significant clinical improvements (PAL gains, reduced PPDs) were observed 1 year after treatment in both groups. There were no significant differences, however, between the PLA/PGA and the collagen membrane groups regarding any of the evaluated parameters (mean PAL gain: 2.9 mm vs 3.9 mm; mean residual PPD: 4.8 mm vs 4.1 mm, respectively). The membrane material per se does not seem to be a critical factor for the outcome of GTR treatment of intrabony defects with bioresorbable membranes.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Stavropoulos A,Sculean A,Karring Tdoi
10.1007/s00784-004-0277-0keywords:
subject
Has Abstractpub_date
2004-12-01 00:00:00pages
226-32issue
4eissn
1432-6981issn
1436-3771journal_volume
8pub_type
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更新日期:2008-09-01 00:00:00
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更新日期:2020-12-01 00:00:00
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更新日期:2019-10-01 00:00:00
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更新日期:2014-12-01 00:00:00
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更新日期:2017-11-01 00:00:00