Abstract:
OBJECTIVES:This prospective randomized clinical trial aimed to evaluate the long-term behavior of metal-free double crown retained dentures with secondary crowns and dental frameworks made of the fiber-reinforced composite Vectris(©) on all-ceramic primary crowns (IPS Empress 2(©)) over a period of up to 14 years and to subsequently evaluate patient satisfaction. For the control group, electroplated gold copings and metal frameworks were used. MATERIALS AND METHODS:A total of 29 patients were treated with a total of 37 prostheses on 165 primary crowns. Of these 37 prostheses, 27 were allotted to the control group and 10 to the test group. The mean observation time was 91 ± 57 months; patient satisfaction surveys were conducted over 77 ± 59 months. RESULTS:Success rates in both groups were compared using Kaplan-Meier survival curves and log-rank test. Up to about 3 years, both types of prostheses exhibited similar success rates. Afterwards, a massive decrease in the Vectris(©) curve could be noted, whereas the metal curve dropped only slightly. This difference was also statistically significant (p = 0.032361). There was a comparable susceptibility to damages in both groups: 88.9 % (control) and 90 % (test), respectively, of the prostheses had to be repaired within the period of investigation (p = 0,121). Damages of the Vectris(©) secondary crowns could be detected significantly more often compared to the electroformed gold copings (p < 0.00005). Patient satisfaction with the restorations was comparably high in both groups. CONCLUSION:Metal-free secondary crowns and denture frameworks made with the glass fiber-reinforced composite material Vectris(©) showed a lower survival rate than the electroplated gold copings and metal frameworks. Primary crowns made of IPS Empress 2(©) had insufficient stability. Exclusively high-strength zirconia ceramics should be recommended for this indication. CLINICAL RELEVANCE:Both clinical and statistical data indicated the superiority of the restorations made with electroplated secondary crowns and metal framework. Therefore, the use of Vectris(©) cannot be recommended for the fabrication of double crown retained removable dentures as permanent restorations.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Zahn T,Zahn B,Janko S,Weigl P,Gerhardt-Szép S,Lauer HCdoi
10.1007/s00784-015-1597-ysubject
Has Abstractpub_date
2016-06-01 00:00:00pages
1087-100issue
5eissn
1432-6981issn
1436-3771pii
10.1007/s00784-015-1597-yjournal_volume
20pub_type
杂志文章,随机对照试验abstract:OBJECTIVES:This study was designed to investigate the antimicrobial properties, compressive strength and fluoride release capacities of high-viscous glass ionomer cements (GICs) after incorporation of cinnamon and thyme essential oils. MATERIALS AND METHODS:Experimental-modified GICs were prepared by incorporation of ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03493-0
更新日期:2020-08-15 00:00:00
abstract:OBJECTIVES:The aim of the present study is to evaluate the possible correlation between sealer penetration into dentinal tubules and sealing ability both in presence and absence of smear layer. MATERIALS AND METHODS:Fourteen maxillary central incisors were treated with 5.25 % NaOCl +10 % EDTA to remove the smear layer...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-016-1878-0
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVES:A group of adolescents with oral piercings was studied to determine the presence of metallic particles in cells exfoliated from the mucosa surrounding their metal oral piercings and the association between such particles and the metal jewelry, and to evaluate subsequent tissue implications. MATERIALS AND ME...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2626-4
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVES:The purpose of this systematic review was to examine if, in adult patients, the absence or presence of smoking influenced the prevalence of periapical periodontitis (PP). MATERIALS AND METHODS:Databases were searched, and original research manuscripts up to June 2019 were identified by two reviewers. The Ne...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-03094-6
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVES:To investigate the relationship of the irradiance-beam-profile areas from six different light-curing units (LCUs) with the degree of conversion (DC), microhardness (KH), and cross-link density (CLD) throughout a resin-based composite (RBC) cured at two clinically relevant distances, and to explore the correl...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-02831-1
更新日期:2019-11-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to evaluate the bond strength of three root-end filling materials (MTAA-MTA Angelus, MTAS-experimental MTA Sealer, and ZOE- zinc oxide and eugenol cement) in retrograde preparations performed with different ultrasonic tips (CVD, Trinity, and Satelec). MATERIALS AND METHOD:Nin...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1708-9
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVES:This study aims to investigate the bleaching effectiveness of photon-initiated photoacoustic streaming (PIPS) using 35 % hydrogen peroxide on discolored teeth as compared with different devital bleaching techniques. MATERIALS AND METHODS:Fifty extracted human mandibular incisors were collected and artificia...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-014-1255-9
更新日期:2015-03-01 00:00:00
abstract::The aim of this study was to compare the short-term performance of a session of single photodynamic therapy (PDT) and of a conventional ultrasonic debridement (UST) in persistent pockets of maintenance patients. In a prospective, randomized, controlled, single-blind clinical study, patients with chronic periodontitis ...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-009-0347-4
更新日期:2010-12-01 00:00:00
abstract:OBJECTIVES:To describe changes in growth factor mediators in the gingival crevicular fluid (GCF) of patients with aggressive periodontitis (AgP) undergoing regenerative (GTR) and access flap (AF) surgery. MATERIALS AND METHODS:This was a 12-month, single-blind, split-mouth RCT involving 18 AgP patients with a bilatera...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2752-z
更新日期:2019-08-01 00:00:00
abstract::From a preventive point of view collection of data concerning carious and non-carious cervical tooth defects is definitely important. Consequently, the prevalence and distribution of different root lesions were studied and correlated with behavioral and biological factors in 50- to 60-year-old German individuals (n = ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s007840050097
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVES:The aim of this research was to analyse the dental discolouration caused by mineral trioxide aggregate (MTA) induced by bismuth oxide and also assess the colour stability of other dental cements. MATERIALS AND METHODS:Bismuth oxide, calcium tungstate and zirconium oxide were placed in contact with sodium hy...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1466-8
更新日期:2015-12-01 00:00:00
abstract::The aim of this study was to compare different methods of detection of Helicobacter pylori (H. pylori) in the dental plaque of dyspeptic patients. After recording the clinical indices, culture and polymerase chain reaction (PCR) methods were performed on plaque samples, while rapid urease test in addition to these tes...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-007-0104-5
更新日期:2007-09-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to compare the effects of periodontal treatment on the inflammatory markers in gingival crevicular fluid and the concentration of salivary cortisol between non-pregnant and pregnant women with gingivitis. MATERIALS AND METHODS:This study included 30 non-pregnant women (mean age 27....
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2569-9
更新日期:2018-07-31 00:00:00
abstract::The present study compared the recovery of six periodontal pathogens by paper point samples from two different aspects of periodontal lesions by quantitative real-time polymerase chain reaction (PCR). Twenty patients with untreated chronic periodontitis were randomized into two groups. Before subgingival instrumentati...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-009-0333-x
更新日期:2010-10-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to compare the effects of a hemostatic collagen sponge and a collagen sponge sealed with a bio-adhesive material on the palatal donor sites with the purpose of minimizing postoperative pain after epithelialized gingival graft (EGG) harvesting. MATERIAL AND METHODS:The present study...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-018-2455-5
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:Numerous different attachments are used to retain overdentures on implants. The purpose of this study was to evaluate a new chairside attachment system based on polyvinylsiloxane (PVS). MATERIAL AND METHODS:A total of 250 specimens were fabricated (n = 10) to measure the retention force (RF) in dependence o...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-014-1307-1
更新日期:2015-05-01 00:00:00
abstract:OBJECTIVE:Reconstruction of large and complex bone segments is a challenging problem facing maxillofacial surgery. The majority of current regenerative approaches rely on extrinsic vascularization, which is deficient after cancer ablation and irradiation. The aim of the study was to investigate the efficacy of intrinsi...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1143-8
更新日期:2014-07-01 00:00:00
abstract::The aim was to determine the relationship between mercury content of resting and stimulated saliva, and blood and urine. Eighty subjects participated; 40 of them attributed their self-reported complaints to dental amalgam (patients), the others were matched with respect to age, sex and amalgam restorations (controls)....
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s007840000089
更新日期:2000-12-01 00:00:00
abstract:AIM:The aim of this meta-review was to evaluate whether there is a meaningful clinical benefit regarding the use of systemic adjunctive antibiotics in the treatment of patients with periodontitis. Additionally, a consensus regarding possible recommendations for future administration of antibiotics should be reached. M...
journal_title:Clinical oral investigations
pub_type: 杂志文章,评审
doi:10.1007/s00784-018-2727-0
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the effect of different seating forces during cementation in cement-ceramic microtensile bond strength (μTBS). MATERIALS AND METHODS:Forty-five blocks (5 × 5 × 4 mm(3)) of a glass-infiltrated alumina-based ceramic (In-Ceram Alumina) were fabricated according to the manu...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-011-0668-y
更新日期:2013-01-01 00:00:00
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 cli...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-016-1849-5
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVES:To evaluate, longitudinally, the impacts of orthognathic surgery in patients with skeletal class II malocclusion on oral health-related quality of life (OHRQoL), temporomandibular disorders (TMD) and psychological symptoms. MATERIALS AND METHODS:Forty-three patients with skeletal class II malocclusion who w...
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:OBJECTIVES:The aims of this study were to investigate the antimicrobial efficacy of antiseptics in saliva-derived microcosm biofilms, and to examine phenotypic adaption of bacteria upon repeated exposure to sub-inhibitory antiseptic concentrations. METHODS:Saliva-derived biofilms were formed mimicking caries- or gingi...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03613-w
更新日期:2020-10-08 00:00:00
abstract:OBJECTIVE:This study aimed to compare (18)F-fluorodesoxyglucose positron emission tomography/MRI ((18)F-FDG-PET-MRI) fusion images, including diffusion-weighted imaging (DWI), (18)F-FDG-PET/CT, and ultrasound (US) regarding their performance in nodal staging of patients with head and neck squamous cell carcinoma (HNSCC...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1050-z
更新日期:2014-04-01 00:00:00
abstract::The aim of this study was to evaluate the elemental release from a Ni-Cr dental casting alloy subjected to 10% hydrogen peroxide (HP) or 10% carbamide peroxide (CP) solutions and to determine the composition of surface oxide layer formed on alloy samples. Cylinder-shaped 15 specimens were cast from a Ni-Cr alloy and d...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-010-0391-0
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVES:The purpose of this case series was to evaluate the new bone formation following guided bone regeneration (GBR) with a calcium phosphosilicate (CPS), alloplastic bone putty at peri-implant dehiscence defects and to assess survival rate of implants placed in the augmented sites after 12 months of function. M...
journal_title:Clinical oral investigations
pub_type: 杂志文章,多中心研究
doi:10.1007/s00784-014-1268-4
更新日期:2015-03-01 00:00:00
abstract:OBJECTIVES:For well-defined deep (> 2/3 dentin extension) carious lesions, selective (SE) or stepwise (SW) carious tissue removals have been recommended, while there is limited comparative evidence for both. We compared SE and SW over 24 months in a randomized controlled trial. METHODS:A two-arm superiority trial was ...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-020-03536-6
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate repair after endodontic surgery using two- and tridimensional imaging methods. MATERIALS AND METHODS:Periapical radiographs and cone beam computed tomography (CBCT) were performed before the surgeries and after 48 h (baseline), 4 months, and 8 months. The area (square mi...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-014-1225-2
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVES:This in situ study aims to evaluate the effects of chlorhexidine (CHX) mouth rinsing on biofilm formation and moreover on the disruption of existing mature dental biofilms. METHODS:Biofilms were formed in situ by five volunteers on bovine enamel specimens fixed to individual acrylic splints. For biofilm for...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03250-3
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:SLC22A4/5 single nucleotide polymorphisms (SNPs) have been reported to affect inflammatory diseases. We report the relationship of these polymorphisms with adiposity and tooth loss as elucidated in a 10-year follow-up study. METHODS:Participants of the Study of Health in Pomerania (SHIP, N = 4105) were genot...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03594-w
更新日期:2021-02-01 00:00:00