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:A total of 36 cylindrical samples with a height of 2 mm and a diameter of 2 mm were prepared using PTFE molds. Eighteen cylinders were prepared by two incremental applications of 1 mm into the molds, then polymerized (group 1). For the other 18 samples (group 2), the first increment was polymerized before the second addition was made. The average porosity percentage and the average porosity volume were evaluated by high-resolution tomography (Nanotom M® - Phoenix X-Ray(TM), Wunstorf, Germany). The impact of incremental applications in terms of porosity was also evaluated. RESULTS:Irrespective of the protocol used, the low viscous material presented an average porosity percentage and an average porosity volume significantly greater than those of the other materials. Incremental application (group 2 samples) led to an increase in the average porosity percentage and volume irrespective of the material compared to the group 1 samples. CONCLUSIONS:High-resolution tomography appeared to be a particularly suitable tool for studying the porosity of resin composites. The viscosity and the handling of these materials seemed to be influential factors on their porosity. CLINICAL RELEVANCE:The presence of porosities in dental resin composites remains an objective reality, especially with low-viscous resin composites. Since the intrinsic porosity of the materials can be neither controlled nor modified by the operator, rigorous and iterative clinical protocols still remain the best way to limit inclusion of porosities in the resin composites.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Balthazard R,Jager S,Dahoun A,Gerdolle D,Engels-Deutsch M,Mortier Edoi
10.1007/s00784-013-1139-4subject
Has Abstractpub_date
2014-07-01 00:00:00pages
1613-8issue
6eissn
1432-6981issn
1436-3771journal_volume
18pub_type
杂志文章abstract::This study evaluated the 10-year clinical performance of high-viscosity glass-ionomer cement placed in posterior permanent teeth by means of the Atraumatic Restorative Treatment (ART) approach. One operator placed 167 single- and 107 multiple-surface restorations in 43 high-risk caries pregnant women (mean decayed tee...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-009-0378-x
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVES:This study aimed to estimate the dental age (DA) using the London Atlas, Willems, and Nolla methods and to compare their accuracies. METHODS:The DA was estimated using the aforementioned methods on panoramic radiograms of a total of 919 Eastern Turkish patients aged 6-14 years, of whom 459 were female and 4...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-021-03788-w
更新日期:2021-01-18 00:00:00
abstract:OBJECTIVE:The objective of this in vitro study was to investigate fracture load, fracture types, and impact of chewing simulation of human molars restored with 3D printed indirect polyetheretherketone (PEEK) inlays and compare these with milled indirect PEEK inlays, direct resin composite fillings, and sound teeth. MA...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03216-5
更新日期:2020-10-01 00:00:00
abstract:BACKGROUND:The aim of this systematic review and meta-analysis (SRM) was to assess the postoperative pain (PP) after non-surgical endodontic retreatment (NSER) in a one visit compared to multiple visits. The PICO question used was "Does NSER in patients with unsatisfactory endodontic treatment in a one-visit visit have...
journal_title:Clinical oral investigations
pub_type: 杂志文章,meta分析
doi:10.1007/s00784-020-03767-7
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVES:Aberrant growth of the maxillomandibular complex in patients with cleft lip and/or palate (CL/P) can be managed with dentofacial orthopaedics. However, no consensus has been reached regarding timing and evolution of the maturational stages. Therefore, the aim of this study is to determine if patients with CL...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-021-03790-2
更新日期:2021-01-23 00:00:00
abstract:OBJECTIVES:The purpose of this study was to investigate the role of hyperbaric oxygen (HBO) in the healing of teeth extraction sockets and in alveolar ridge preservation. This may provide an experimental basis for the widespread application of HBO in oral implantation. METHODS:A total of 32 beagle dogs were included i...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-03117-2
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVES:The aim of this study is to investigate the relationship between periodontal morphometric parameters and to develop a biotype classification based on the variables examined with the use of cone-beam computed tomography (CBCT). MATERIALS AND METHODS:Forty-two periodontally healthy subjects that underwent a C...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1694-y
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVES:The aim of the meta-analysis was to clarify the efficacy of non-surgical periodontal treatment (NSPT) in improving rheumatoid arthritis (RA) disease activity. METHODS:A systematic literature search was conducted using the PubMed, Embase, and Cochrane databases up to October 2020. A total of nine studies wer...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-021-03807-w
更新日期:2021-01-29 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:Symptoms of temporomandibular joint (TMJ) dysfunction can seriously compromise patients' quality of life. The aim of our study was to use magnetic resonance imaging (MRI) T2 mapping of the articular disc to determine whether T2 mapping of the TMJ disc is feasible in routine clinical imaging and to assess the...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1154-5
更新日期:2014-09-01 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::This study evaluated the colour parameters of composite and ceramic shade guides determined using a colorimeter and digital imaging method with illuminants at different colour temperatures. Two different resin composite shade guides, namely Charisma (Heraeus Kulzer) and Premise (Kerr Corporation), and two different ce...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-009-0329-6
更新日期:2010-12-01 00:00:00
abstract:OBJECTIVES:Determine the association between sialadenitis and osteonecrosis of the jaw (ONJ) in head and neck cancer (HNC) patients with varying severity of sialadenitis, treatment modalities, and cancer locations. MATERIALS AND METHODS:A total of 40,168 HNC patients, including 1907 ONJ subjects and 7559 matched compa...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2465-3
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVES:Recently, novel biphasic calcium phosphate (BCP) scaffolds have emerged as a new class of bone grafts with osteoinductive potential demonstrating the ability to form ectopic bone in extra-skeletal sites. The aim of the present study was to perform an osteogenic gene array to target possible genes responsible...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-016-1825-0
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to quantify the blue light that passes through different incremental thicknesses of bulk fill in comparison to conventional resin-based composites (RBCs) and to relate it to the induced mechanical properties. MATERIALS AND METHODS:Seven bulk fill, five nanohybrid and two flowable R...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1177-y
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVES:Clinicians agree that children with isolated cleft lip have fewer cleft-associated problems than children with cleft lip and palate. Unfortunately, for isolated cleft lip children, the risk of cleft-associated problems is unknown and maybe underestimated. Often, these children do not get the required follow-...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-020-03367-5
更新日期:2020-06-04 00:00:00
abstract:OBJECTIVE:The objective of this study was to investigate the effects of fixed functional therapy on oropharyngeal airway dimensions and hyoid bone positions in Class II patients and make comparison with an untreated Class II group. MATERIALS AND METHODS:Eighteen patients (8 girls, 10 boys; mean age 13.62 ± 1.92 years)...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1659-1
更新日期:2016-09-01 00:00:00
abstract:OBJECTIVE:Edible oils are an empiric approach for the prevention of oral diseases. The present in situ study investigated the effect of edible oils on initial bacterial colonization of enamel surfaces. METHODS AND MATERIALS:Initial biofilm formation was performed on enamel specimens mounted on maxillary splints and ca...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-012-0734-0
更新日期:2013-03-01 00:00:00
abstract:OBJECTIVES:To determine the frequency of oral infection with potential for spread (OIPS) and behavioural risk factors in patients referred to a regional tertiary care-centre for OIPS assessment and clearance. MATERIALS AND METHODS:A database search of all referrals to the Oral and Maxillofacial Diseases unit of HUH in...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2518-7
更新日期:2019-02-01 00:00:00
abstract::The aim of this study was to evaluate the clinical long-term performance of a visible light-cured resin (VLCR) denture base material and to compare it to a well-established polymethylmethacrylate (PMMA)-based denture acrylic in a randomized split-mouth clinical long-term study. One hundred removable partial dentures i...
journal_title:Clinical oral investigations
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00784-011-0572-5
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to investigate differences between the virtually planned and clinically achieved implant positions in completely template-guided implantations as a function of the type of edentulous space, the residual natural dentition, and the surgical implementation. MATERIALS AND METHODS:Fifty-...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-018-2339-8
更新日期:2018-07-01 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:Transglutaminase-2 (TGM-2) protein is involved in the cross-linking of matrix proteins resulting in several fibrotic disorders and can be induced by reactive oxygen species (ROS). Little is known about its role in the development of oral submucocal fibrosis (OSF). Hence, we hypothesize that TGM-2 may have a ...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1579-0
更新日期:2016-06-01 00:00:00
abstract::The use of oral implants opened a wide range of prosthetic treatment possibilities in edentulous patients. Although the reported success rates of oral implants are high, failures do occur. This paper reviews the current knowledge about the aetiology, the signs and symptoms and the possible influencing factors of impla...
journal_title:Clinical oral investigations
pub_type: 杂志文章,评审
doi:10.1007/s007840050054
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVES:The combination of sodium hypochlorite (NaOCl) and chlorhexidine (CHX) yields a "precipitate potentially toxic" (PPT). The aim of this study was to evaluate the tissue response to implanted polyethylene tubes filled with PPT-soaked fibrin sponge. METHODS:Forty rats received four polyethylene tubes each; eac...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-013-1049-5
更新日期:2014-04-01 00:00:00
abstract:OBJECTIVE:This study aimed to measure modifications of mastication after immediate loading full-arch prosthesis (ILFAP) rehabilitation. MATERIALS AND METHOD:Fourteen patients were observed before and 6 months after ILFAP rehabilitation when masticating two natural, standardized foods (peanut and carrot) and three mode...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-012-0787-0
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVES:To describe the number of second primary malignancies in a series of 33 patients with proliferative verrucous leukoplakia (PVL), detailing the mean time between primary malignancies and their clinical characteristics. MATERIALS AND METHODS:Two groups of patients were included in this study: group 1 comprise...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-019-03059-9
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to evaluate factors associated with the incidence of erosive tooth wear (ETW) among adults at different ages in Tokyo using multifactorial logistic regression analysis. MATERIALS AND METHODS:The study sample consisted of a total of 1108 subjects aged 15 to 89 years in Tokyo, Japan....
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-017-2065-7
更新日期:2017-11-01 00:00:00
abstract::In the course of a prospectively designed long-term clinical trial, composite fillings and inlays were evaluated for clinical acceptability as restorative materials in one, two or more surface cavities of posterior teeth over a 1-year period. In 45 patients, 88 restorations were placed by nine student operators, under...
journal_title:Clinical oral investigations
pub_type: 临床试验,杂志文章
doi:10.1007/s007840050013
更新日期:1997-06-01 00:00:00
abstract:OBJECTIVES:The aims of this study were to determine the quality of life of periodontally compromised patients after implant treatment (primary aim) and their satisfaction with the restoration and treatment approach (secondary aim). MATERIAL AND METHODS:In this study, 61 adult subjects were evaluated following non-surg...
journal_title:Clinical oral investigations
pub_type: 杂志文章
doi:10.1007/s00784-015-1561-x
更新日期:2016-05-01 00:00:00