Abstract:
OBJECTIVES:The study evaluates the influence of two spacer settings and three resin luting materials on the marginal and internal fit of polymer-infiltrated ceramic network (PICN) material crowns manufactured using a complete digital workflow. METHODS:Optical impressions of fifty identical dies were performed using the 3M scanner (software version 5.0.2). Twenty crowns were designed using Ceramill Mind (version 3.4.10.1163), from which ten with spacer setting of 50 μm (G1) and ten with 80 μm (G2). Thirty crowns (spacer setting of 50 μm) were divided into three groups corresponding to the resin materials used as follows: RelyX Unicem (RX), Variolink Esthetic (VLE), and Nexus 3 (NX3). All crowns were milled from Vita Enamic blocks. After micro-CT scanning, absolute marginal discrepancy (AMD), internal gap (IG), total cement space volume (TCV), and marginal porosities (VP) were measured. RESULTS:Significant difference was detected on the VP between the RX and NX3 group (p = 0.033). The mean values of all parameters were the following: AMD (μm): G1 182.6, G2 253.7, RX 210.8, VLE 195.5, NX3 186.6; IG (μm): G1 215.6, G2 173.1, RX 171.1, VLE 198.6, NX3 203; TCV (mm3): G1 22.9, G2 20.49, RX 17.57, VLE 17.49, NX3 20.59; VP (mm3): G1 0.26, G2 0.34, RX 0.32, VLE 0.46, NX3 0.54. CONCLUSIONS:Fit of PICN material crowns was not significantly influenced by increasing the spacer settings and cementation with different resin materials. Additionally, RelyX Unicem showed significantly less porosities as compared with Nexus3. CLINICAL RELEVANCE:Both 50 μm and 80 μm virtual spacer settings can be suggested for the manufacture of PICN crowns when Ceramill Mind (version 3.4.10.1163) is used. Furthermore, a self-adhesive system can be recommended for the cementation.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Dauti R,Lilaj B,Heimel P,Moritz A,Schedle A,Cvikl Bdoi
10.1007/s00784-019-03053-1subject
Has Abstractpub_date
2020-06-01 00:00:00pages
1929-1938issue
6eissn
1432-6981issn
1436-3771pii
10.1007/s00784-019-03053-1journal_volume
24pub_type
杂志文章abstract::Recently, resin-based dental restorative materials have been targeted as potential sources of xenoestrogens, specifically bisphenol A (BPA) and bisphenol A dimethacrylate (BAD), which could contribute to overall estrogen load and result in deleterious side effects. The present study used high-pressure liquid chromatog...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s007840050087
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abstract::At a dental office in Münster, Germany, the majority of gold inlays incorporated between July 1969 and August 1999 (n=2,071) in 531 patients were checked with reference to the dental records and assessed retrospectively to determine their longevity. One hundred seventy-five gold inlays were rated as failures (no longe...
journal_title:Clinical oral investigations
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journal_title:Clinical oral investigations
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更新日期:2017-07-01 00:00:00
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journal_title:Clinical oral investigations
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journal_title:Clinical oral investigations
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2012-06-01 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:2009-09-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2008-06-01 00:00:00
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更新日期:2019-05-01 00:00:00
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journal_title:Clinical oral investigations
pub_type: 杂志文章,meta分析,评审
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更新日期:2014-04-01 00:00:00
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更新日期:2019-12-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2012-02-01 00:00:00
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journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-007-0120-5
更新日期:2007-09-01 00:00:00
abstract::Apical periodontitis (AP) are frequent findings in contemporary dental practice in association with dental pathology or dental care. They have also been studied from an anthropological background. The purpose of this study was to compare the prevalence of apical and dental lesions in an archeological Middle Ages sampl...
journal_title:Clinical oral investigations
pub_type: 历史文章,杂志文章
doi:10.1007/s00784-005-0318-3
更新日期:2005-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s00784-020-03669-8
更新日期:2020-11-16 00:00:00
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pub_type: 杂志文章,随机对照试验
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journal_title:Clinical oral investigations
pub_type: 杂志文章
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更新日期:2020-04-01 00:00:00
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更新日期:2018-11-01 00:00:00
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journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-019-02954-5
更新日期:2020-02-01 00:00:00
abstract::Oral verrucous carcinoma (OVC) is a rare variant of squamous cell carcinoma with a characteristic morphology and specific behavior. To date, few studies are available focusing the prevalence and clinicopathologic features of the oral verrucous carcinoma in Brazilian population. A total of 3,500 primary oral well-diffe...
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pub_type: 杂志文章
doi:10.1007/s00784-006-0050-7
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pub_type: 杂志文章,评审
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更新日期:2018-01-01 00:00:00
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journal_title:Clinical oral investigations
pub_type: 杂志文章
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journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03709-3
更新日期:2021-01-07 00:00:00
abstract:BACKGROUND:The use of the autogenous periosteal graft as biological barrier has been proposed for periodontal regeneration. The aim of this study was to evaluate the histometric findings of the subepithelial connective tissue graft as barrier in intrabony defects compared to a bioabsorbable membrane. METHODS:Three-wal...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-014-1323-1
更新日期:2015-06-01 00:00:00
abstract:OBJECTIVES:The caries preventive effect of long-term use (1 year) of low-dosage (2.5 g/die) of xylitol chewing gum in a high-caries-risk adult population was evaluated. MATERIALS AND METHODS:In this randomized clinical trial, 179 high-caries-risk adults were assigned to two experimental groups, xylitol and polyols. Ca...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-017-2075-5
更新日期:2017-12-01 00:00:00