Abstract:
:Resin-bonded fixed partial dentures (RBFPD) are used as a minimal invasive, tooth-preventing alternative for replacing anterior teeth. Zirconia cantilever restorations were supposed to show sufficient strength for a clinical application. The aim of this investigation was to determine the fracture characteristics of cantilever and two-retainer RBFPD, which are fabricated by computer-manufactured high-strength zirconia. Human incisors and canines were used to form three groups of 14 RBFPDs with different types of preparation: group 1, an invasive cantilever; group 2, a minimal-invasive cantilever and group 3, a two-retainer RBFPD control. After thermal cycling and mechanical loading, which was performed to simulate oral service, all restorations were loaded to fracture in a universal testing machine. One half of the specimens were investigated as a control without simulated service. Mode of failure was determined for the three designs. Both cantilever groups showed comparable fracture resistance of 227 N (no. 1) and 210 N (no. 2) before thermal cycling and mechanical loading. The resistance after aging was reduced to 210 N for the invasive cantilever RBFPD and to 179 N for the minimal invasive group. Three-unit RBFPDs showed a significantly higher (p < 0.02) fracture resistance than cantilever bridges before (426 N) as well as after aging (360 N). Predominant failure was FPD and retainer fracture for the invasive cantilever design, debonding for the minimal cantilever design and RBFPD fracture for the two-retainer design. The present study revealed a significantly higher fracture resistance for two-retainer RBFPDs than for cantilever RBFPDs. The frequency of adhesive debonding increased for non-retentive prepared cantilever RBFPDs.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Rosentritt M,Ries S,Kolbeck C,Westphal M,Richter EJ,Handel Gdoi
10.1007/s00784-009-0254-8subject
Has Abstractpub_date
2009-12-01 00:00:00pages
453-7issue
4eissn
1432-6981issn
1436-3771journal_volume
13pub_type
杂志文章,随机对照试验abstract:OBJECTIVES:The purpose of this laboratory study was to evaluate the influence of the attachment design and material on the retention of resin-bonded attachments (RBAs) before and after dynamic loading. MATERIALS AND METHODS:Forty-eight caries-free human premolars were prepared for RBAs fabricated either from a CoCr al...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2544-5
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:This study aims to compare the clinical outcomes of a combination of enamel matrix derivatives (EMD) and a synthetic bone graft (biphasic calcium phosphate) with EMD alone in wide and deep one- and two-wall intrabony defects 36 months after treatment. MATERIAL AND METHODS:Thirty patients with chronic period...
journal_title:Clinical oral investigations
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00784-015-1522-4
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVES:We aimed at investigating whether the interaction between the local inflammation, periodontitis, and obesity is independently associated with systemic inflammation. METHODS:From the population-based Study of Health in Pomerania, 3366 participants, without (2366) and with (1000) obesity, were studied for the...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03514-y
更新日期:2020-08-22 00:00:00
abstract:OBJECTIVE:Genome-wide association studies (GWAS) and literature have identified polymorphisms in the KCNJ11, HNF1A, IRS1, TCF7L2, CDKAL1, CDKN2B, RPSAP52, GPR45 HHEX, IL18, and RUNX2 genes associated with type 2 diabetes mellitus (T2DM) and/or periodontitis (P) in diverse populations, and we sought to evaluate them as ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03717-3
更新日期:2021-01-03 00:00:00
abstract:OBJECTIVES:Periodontitis is associated with systemic inflammation, elevated platelet activation and enhanced risk for cardiovascular diseases, while periodontal treatment reduces tissue inflammation and shows desirable effects on the oral biofilm and dental health. However, subgingival debridement during conservative t...
journal_title:Clinical oral investigations
pub_type: 临床试验,杂志文章
doi:10.1007/s00784-019-03049-x
更新日期:2020-05-01 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:OBJECTIVES:The main purpose of this prospective, double-blind, randomized study was to evaluate anaesthetic parameters, postoperative analgesia and vasoactive properties of levobupivacaine and bupivacaine for lower third molar surgery. MATERIAL AND METHODS:Sixty patients (ASA I) were scheduled for lower third molar su...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1114-0
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:Our aim was to assess the anti-biofilm ability of previously unverified individual D-amino acids (DAAs), to produce plasma polymer encapsulated DAAs (PPEDAAs), to measure the shell thickness and subsequent release of DAAs, and to assess the effects of PPEDAAs on Enterococcus faecalis biofilms. MATERIALS AND ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03663-0
更新日期:2020-11-02 00:00:00
abstract::A total of 110 patients with neurofibromatosis 1 (NF1) were evaluated for their dental health. Appropriate cohorts from national Finnish databases were used as reference. The results showed that NF1 patients presented lower rate of caries compared to controls in age groups under 35 years. The differences between NF1 p...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-009-0341-x
更新日期:2011-02-01 00:00:00
abstract:OBJECTIVES:The aim of this systematic review was to assess the efficacy of bioactive glass (BG) in bone regeneration for implant site development procedures. MATERIAL AND METHODS:The following specific question was formulated with reference to Population, Intervention, Control, Outcomes (PICO): "In persons that underg...
journal_title:Clinical oral investigations
pub_type: 杂志文章,评审
doi:10.1007/s00784-014-1376-1
更新日期:2015-03-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to analyze the porosity of three photopolymerizable resin composites: one high-viscous resin composite (Filtek™ P60®, 3 M™ ESPE™), one moderate-viscosity resin composite (Grandio®, VOCO™), and one low-viscous resin composite (Filtek™ Supreme XTE®, 3 M™ ESPE™). MATERIALS AND METHODS...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1139-4
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate the influence of [2-(methacryloyloxy)ethyl] trimethylammonium chloride (METAC) in the physico-chemical properties, antibacterial activity and cytotoxicity of an experimental resin-based sealant. MATERIALS AND METHODS:An experimental resin-based sealant was formulated wi...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-02971-4
更新日期:2020-02-01 00:00:00
abstract::Regular screening through white light inspection of the entire oral mucosa is the most important examination method to identify precancerous lesions and early oral carcinoma. Additionally, the physiologic autofluorescence of the oral mucosa has been described as a novel screening method for the detection of mucosal le...
journal_title:Clinical oral investigations
pub_type: 临床试验,杂志文章
doi:10.1007/s00784-010-0455-1
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVES:The main purpose of this study was to investigate the detailed healing process of the roots and surrounding periodontium [cementum, periodontal ligament (PDL), and bone] at different time points after intentional root damage with miniscrew implants (MSIs). MATERIALS AND METHODS:After cone-beam computed tomo...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-017-2194-z
更新日期:2018-03-01 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
abstract:OBJECTIVES:This study evaluated the danger zone (DZ) in mesial roots of mandibular molars and the correlation between anatomical references of the DZ and some anatomical landmarks including tooth/root length, depth of mesial and distal grooves, and inter-canal orifices distance. MATERIAL AND METHODS:Twenty-eight mesia...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03686-7
更新日期:2020-11-24 00:00:00
abstract:OBJECTIVES:The aim of this comprehensive literature review is to provide recommendations and guidelines for dental implant therapy in patients with a history of radiation in the head and neck region. For the first time, a meta-analysis comparing the implant survival in irradiated and non-irradiated patients was perform...
journal_title:Clinical oral investigations
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s00784-013-1134-9
更新日期:2014-04-01 00:00:00
abstract::Previous work showed that a single application of 40% chlorhexidine varnish, EC40, reduced plaque acidogenicity upon sucrose challenge during less than 3 weeks. It was questioned whether lactic acid production could be reduced significantly longer when the treatment was intensified. Therefore, the effects of three con...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-006-0079-7
更新日期:2007-03-01 00:00:00
abstract:OBJECTIVES:Evaluate the effects of ionizing radiation on microarchitecture, the osteocyte lacunar network, and collagen maturity in a bone repair site. MATERIALS AND METHODS:Bone defects were created on tibias of 20 New Zealand rabbits. After 2 weeks, the animals were randomly divided into (n = 10) NoIr (nonirradiated...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-03138-x
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVES:To assess dimensional changes following alveolar ridge preservation using bovine-derived xenograft with 10% collagen and collagen membrane compared to ridge preservation by means of bovine-derived xenograft particles and collagen membrane or spontaneous healing in posterior sites. MATERIALS AND METHODS:Fort...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-019-02979-w
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVES:Milling is a crucial step in producing restorations using computer-aided design and computer-aided manufacturing (CAD/CAM) systems. In this study the trueness of currently available milling devices was evaluated. MATERIALS AND METHODS:Thirty clinical cases (ten inlays, ten crowns, ten onlays) were milled fr...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-016-1916-y
更新日期:2017-03-01 00:00:00
abstract:OBJECTIVES:To analyze the potential of human dental pulp stem cells (hDPSCs) for maintaining their undifferentiated status and osteogenic differentiation capacity when arranged in cell sheets (CSs) for future application in bone replacement. MATERIALS AND METHODS:CSs were formed after being induced for 10-15 days by c...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2630-8
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate the periodontal healing pattern of dehiscence-type defects following different chemical root conditioning modalities. MATERIALS AND METHODS:Buccal osseous dehiscence defects were created on six teeth of seven dogs. After dental plaque accumulation, defects were tr...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-012-0848-4
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVES:Bisphosphonates and denosumab are antiresorptive drugs used for the treatment of osteoporosis and oncological tumors. A severe side effect is osteonecrosis of the jaw. Monocyte/macrophage dysfunction is considered to play a distinct role in osteonecrosis. THP-1 monocytic cells were used in this study to eluc...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-014-1358-3
更新日期:2015-07-01 00:00:00
abstract:OBJECTIVES:This study aimed to analyse loss of enamel worn against composite, leucite glass ceramic or enamel antagonists under non-erosive and alternating or simultanuous erosive-attritive conditions. MATERIALS AND METHODS:Flat human enamel specimens were loaded (1 Hz, 300 g loading weight, each subgroup n = 12) with...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-017-2071-9
更新日期:2017-12-01 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 paper aims to observe peri-implant time-related vertical bone level and soft tissue changes with immediate, non-detached glass-ceramic (lithium-disilicate) individualized abutments and dis-/reconnections. MATERIALS AND METHODS:Sixteen split-mouth patients received provisionalized immediate definitive i...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-017-2136-9
更新日期:2018-01-01 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: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:BACKGROUND:Cleft lip and palate (CLP) represents the most common malformation of the midfacial region worldwide. It can be suggested that the facial stigmatization, the speech impediment, and the long-standing pressure of treatment cause a range of life stressors. Neurocortical information is influenced by physiologica...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1465-9
更新日期:2016-01-01 00:00:00