Abstract：
OBJECTIVE:To volumetrically evaluate soft tissue changes of different ridge preservation techniques compared to spontaneous healing 6 months after tooth extraction. MATERIALS AND METHODS:In each of 40 patients, one single-rooted tooth was extracted and four treatment modalities were randomly assigned to the following groups (n = 10 each): A) ß-tricalcium-phosphate-particles with a polylactid coating (ß-TCP), B) demineralized bovine bone mineral with 10% collagen covered with a collagen matrix (DBBM-C/CM), C) DBBM with 10% collagen covered with an autogenous soft tissue punch graft (DBBM-C/PG), D) spontaneous healing (control). Impressions were obtained before extraction and 6 months later, casts were digitized and volumetric changes at the buccal soft tissues were determined. One-way anova was performed and pair-wise Wilcoxon rank sum test with Bonferroni-Holm method was applied for comparison of differences between two groups. RESULTS:After 6 months, horizontal contour changes accounted for -1.7 ± 0.7 mm (A), -1.2 ± 0.5 mm (B), -1.2 ± 0.7 mm (C) and -1.8 ± 0.8 mm (D). None of the group comparisons reached statistical significance. CONCLUSIONS:Six months after tooth extraction all groups revealed a horizontal volume change in the buccal soft tissue contour. Application of DBBM-C/CM or DBBM-C/PG reduced the amount of volume resorption compared to ß-TCP or spontaneous healing without reaching statistically significant difference.
journal_name
J Clin Periodontoljournal_title
Journal of clinical periodontologyauthors
Schneider D,Schmidlin PR,Philipp A,Annen BM,Ronay V,Hämmerle CH,Attin T,Jung REdoi
10.1111/jcpe.12246subject
Has Abstractpub_date
2014-06-01 00:00:00pages
612-7issue
6eissn
0303-6979issn
1600-051Xjournal_volume
41pub_type
杂志文章,随机对照试验abstract：OBJECTIVES:The aim of this systematic review was to evaluate the effects of 0.12% chlorhexidine (CHX) mouthrinse compared with 0.2% on plaque and periodontal parameters. MATERIALS AND METHODS:MEDLINE-PubMed and the Cochrane Central Register of Controlled Trials were searched for (randomized) clinical trials and cohort...
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