Abstract:
OBJECTIVES:In this single-blinded, prospective, randomized, controlled clinical trial, the effectiveness of an ozone gas or NaOCl/CHX disinfection protocol was compared within the root canal treatment of apical periodontitis. MATERIALS AND METHODS:Sixty permanent teeth were randomly allocated to one technique. The clinical/radiographic assessment criteria included clinical symptoms, periapical index (PAI), and size of the apical lesion. In both groups, the root canal was mechanically cleaned and irrigated with NaCl and EDTA. Ozone gas (32 g m-3) or NaOCl (3 %) was applied followed by a 1-week inter-appointment dressing (Ca(OH)2). As final disinfection, ozone gas (ozone group) or CHX 2 % (NaOCl group) was applied. Microbial samples were taken after preparing the access cavity, after chemo-mechanical treatment and after inter-appointment dressing by sterile paper points. Microbial identification was performed by mass spectroscopy (MALDI-TOF-MS) and 16S-rRNA gene sequencing. The treated teeth were blindly re-evaluated after 6/12 months. Success rates, the decrease in PAI, the size of apical lesions and bacterial reduction were compared between groups (Fischer's exact test, Mann-Whitney U test). RESULTS:There were no significant differences between the success rates (ozone group: 96.2/95.5 % after 6/12 months; NaOCl group: 95.5/95.2 % after 6/12 months). The differences in the decreases in PAI values and apical lesion sizes were also insignificant after 6 and 12 months. The bacterial reduction showed no significant differences between groups after chemo-mechanical treatment and after inter-appointment dressing. The most commonly found bacterial genera were Streptococcus spp., Parvimonas spp. and Prevotella spp. CONCLUSIONS:The here used ozone gas and NaOCl/CHX protocols showed no difference in bacterial reduction in the sampled areas of the root canals. CLINICAL RELEVANCE:Within the limitations of the study, ozone gas seems to be a possible alternative disinfection agent within the root canal treatment of apical periodontitis.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Kist S,Kollmuss M,Jung J,Schubert S,Hickel R,Huth KCdoi
10.1007/s00784-016-1849-5subject
Has Abstractpub_date
2017-05-01 00:00:00pages
995-1005issue
4eissn
1432-6981issn
1436-3771pii
10.1007/s00784-016-1849-5journal_volume
21pub_type
杂志文章,随机对照试验abstract::The aim of the present study was to evaluate the efficacy of autogenous bone graft (ABG) with and without autogenous periodontal ligament graft (PDLG) in the management of human two-wall intrabony periodontal defects. Twenty-six similar two-wall intrabony periodontal defects with >or=5 mm probing depths and >or=3 mm d...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
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更新日期:2009-09-01 00:00:00
abstract:OBJECTIVES:To assess how to control, detect, and treat secondary caries. This review serves to inform a joint ORCA/EFCD consensus process. METHODS:Systematic and non-systematic reviews were performed or consulted and narratively synthesized. RESULTS:Secondary (or recurrent) caries is defined as a lesion associated wi...
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
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abstract::Periodontal ligament (PDL) cells have been associated with the regulation of periodontal repair processes by the differential expression of osteoprotegerin and RANKL in response to intermittent parathyroid hormone (PTH) resulting in a modified activity of bone-resorbing osteoclasts. Here, we examined the intracellular...
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pub_type: 杂志文章,随机对照试验
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2013-09-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2009-12-01 00:00:00
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journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
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更新日期:2013-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2020-08-25 00:00:00
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journal_title:Clinical oral investigations
pub_type: 杂志文章
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更新日期:1997-09-01 00:00:00
abstract:: ...
journal_title:Clinical oral investigations
pub_type: 评论,信件
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更新日期:2019-01-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2017-06-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2009-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:2015-03-01 00:00:00
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journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
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更新日期:2014-12-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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pub_type: 杂志文章,随机对照试验
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更新日期:2010-12-01 00:00:00
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pub_type: 杂志文章
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更新日期:2014-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:2019-08-01 00:00:00