Abstract:
OBJECTIVE:This study evaluated the fracture resistance of different zirconia three-unit posterior all-ceramic fixed partial dentures before and after fatigue loading. MATERIAL AND METHODS:Forty-eight zirconia three-unit posterior all-ceramic fixed partial dentures were fabricated using different manufacturing systems and conventionally cemented on human teeth. The restorations were divided according to the system used for manufacturing the frameworks into 3 groups of 16 specimens each (DCS, Procera and Vita CerecInlab). Half of each group was artificially aged through dynamic loading and thermal cycling, whereas the other half was left with no artificial aging. Afterwards, all specimens were tested for fracture resistance using compressive load on the occlusal surface. Non-parametric ANOVA using the Kruskal-Wallis and Wilcoxon rank tests was performed to test for differences in fracture resistance values with a global significance level of 0.05. RESULTS:All artificially aged specimens survived with no failures. The median fracture resistance values (before; after artificial aging) were: DCS (1683 N; 1618 N), Procera (1522 N; 1256 N), and Vita CerecInlab (1702 N; 1556 N). No significant differences were found for comparisons between different groups before artificial aging. Artificial aging did not significantly influence the fracture resistance of different groups. After artificial aging, group Procera showed significantly lower fracture resistance than the Vita CerecInlab (p=0.015) and DCS (p=0.038) groups. CONCLUSIONS:All tested restorations have the potential to withstand occlusal forces applied in the posterior region and can therefore represent interesting alternatives for replacing porcelain-fused-to-metal restorations. Further assessment is needed before recommending such restorations in daily practice.
journal_name
Acta Odontol Scandjournal_title
Acta odontologica Scandinavicaauthors
Att W,Stamouli K,Gerds T,Strub JRdoi
10.1080/00016350600856232subject
Has Abstractpub_date
2007-02-01 00:00:00pages
14-21issue
1eissn
0001-6357issn
1502-3850pii
770199087journal_volume
65pub_type
杂志文章abstract::The craniofacial morphology of 48 consecutive adult males with isolated cleft palate was studied by means of lateral cephalograms at the mean age of 18.8 years. Twelve of the patients had received pharyngeal flap surgery between 4 and 12 years of age (mean age 6 years) to improve speech. No significant differences wer...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350310003846
更新日期:2003-06-01 00:00:00
abstract::A review of the literature on dental treatment was conducted and models presented of the doctor/dentist-patient relationship. These models are listed and divided into two subgroups, empirical and normative models. The models are scrutinized with focus on the dentist-patient communicative relationship exclusively. Diff...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,评审
doi:10.3109/00016359709115403
更新日期:1997-04-01 00:00:00
abstract::Three composites, two microfilled (Heliosit and Silux) and one macrofilled (Prisma-Fil), were exposed to visible light from three different light units. The depth of the cure was estimated by measuring the length of the test specimen after removing the uncured material. The macrofilled composite cured to a greater dep...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358409041127
更新日期:1984-02-01 00:00:00
abstract:OBJECTIVE:Guided by the conceptual framework of Gilbert and co-workers, this study assesses satisfaction with oral health as reported by 65-year-olds in Sweden and Norway, the relationship of socio-demographic factors, clinical and subjective oral health indicators with satisfaction of oral health, and the consistency ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350902908780
更新日期:2009-01-01 00:00:00
abstract::The aim of this study was to compare the effects on the level of serotonin (5-HT) in the masseter muscle by intramuscular glucocorticoid (GC) administration in patients with fibromyalgia (FM) and localized myalgia (LM), as well as to determine associated changes in pain, tenderness, and microcirculation. The study com...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163598422857
更新日期:1998-06-01 00:00:00
abstract:OBJECTIVE:This cross-sectional study assessed the prevalence and severity of the enamel defects, known as Molar-Incisor Hypomineralization (MIH) and its relationship to dental caries. MATERIALS AND METHODS:A sample of 1157 schoolchildren (population based), aged 6-12 years, of the Araraquara city-Brazil, was evaluated...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2012.734412
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of storage duration on the tensile bond strength of acrylic and silicone-based denture base materials with liners either heat-cured or auto-cured. MATERIAL AND METHODS:The denture liners investigated were Vertex soft (acrylic-based, heat-cured), Coe soft (acrylic-based, auto-cured),...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350510019667
更新日期:2005-02-01 00:00:00
abstract::The aim of the study was to compare the uptake of the trace metals lead, cadmium, zinc and copper, in deciduous and permanent teeth. The material consisted of teeth extracted in the Oslo area. The teeth were digested in hydrochloric acid, and analyses were made by differential pulse stripping voltammetry. Similar leve...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357609002559
更新日期:1976-01-01 00:00:00
abstract::Specimens of various types of dental casting alloys were stored in phosphate-buffered 0.9% NaCl solution for 35 weeks. Every 7 weeks the solutions were changed and analyzed with regard to elements released from the alloys. The release of Cu from type III gold alloy increased in contact with gold alloys for metallo-cer...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358509046501
更新日期:1985-08-01 00:00:00
abstract:OBJECTIVES:(i) To validate caries risk profiles assessed with a computer program against actual caries development in preschool children, (ii) to study the possible impact of a preventive program on the risk profiles, and (iii) to compare the individual risk profiles longitudinally. MATERIAL AND METHODS:Caries risk wa...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350802714734
更新日期:2009-01-01 00:00:00
abstract::Symptoms of mandibular dysfunction were followed up longitudinally from the age of 17 to 19 years in 285 adolescents. Totally, 27 subjects dropped out, leaving 258 for the longitudinal intraindividual comparisons. Reports of TMJ sounds increased significantly with age from 14% to 23% for girls, and at 19 years of age ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358609094342
更新日期:1986-12-01 00:00:00
abstract::Twenty-seven gold crowns, removed from patients with problems such as diffuse pain and metallic taste, have been examined. The gold crowns were made of an ordinary casting gold alloy, type III. The crowns were built on amalgam cores or big amalgam fillings. Eight of these crowns had cracks beginning at the cervical ma...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358509064134
更新日期:1985-03-01 00:00:00
abstract:OBJECTIVE:This study aimed at providing the norms of polymorphic gender- variation in the sequence of permanent tooth emergence in Jordanian children and adolescents. MATERIALS AND METHODS:A total of 2650 Jordanian children and adolescents (1232 males and 1418 females) aged 4-16 years were examined for permanent tooth...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2011.647068
更新日期:2013-01-01 00:00:00
abstract::This study aimed at determining alveolar bone height in musicians playing wind instruments and non-wind instruments. Two hundred and forty-two subjects, 208 men and 34 women, from 3 national orchestras in Stockholm were examined in an intraoral full-mouth survey. The height of alveolar bone, registered by a computeriz...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358609026566
更新日期:1986-06-01 00:00:00
abstract:OBJECTIVES:This study evaluates the effect of self-assembling peptide P11-4 (Curodont Repair, CDR) on bovine enamel remineralization by measuring changes in ultrasonic propagation velocity. METHODS:Six specimens per group were prepared by sectioning bovine teeth into enamel blocks. These blocks were then immersed in l...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2015.1066850
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:To associate self-assessed oral health and treatment need with clinically determined findings. MATERIALS AND METHODS:As part of the Finnish nationwide comprehensive Health 2000 Survey, the present cross-sectional study included dentate participants aged 30-64 years who self-assessed their oral health and tre...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2014.923110
更新日期:2014-11-01 00:00:00
abstract::The aim was to study how three cues (patient's age and angular position and degree of impaction of the molar) were distributed among removed mandibular third molars associated with pathologic conditions and to compare these results with dentists' treatment decisions in another group of molars consisting of asymptomati...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359709059202
更新日期:1997-12-01 00:00:00
abstract::It is important to remove organic material before sealing fissures. The aim of this study was to evaluate the cleansing effect of an air-polishing instrument (Prophy Unit, 2000 Satelec). Nine pairs of newly erupted premolars were treated. One of the teeth was randomly selected for air-polishing; the contralateral one ...
journal_title:Acta odontologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016358809004756
更新日期:1988-04-01 00:00:00
abstract::When grown on agar, most Actinobacillus actinomycetemcomitans form circular and convex colonies with an internal star-shaped morphology. Such colonies adhere firmly to the agar, and when removed, a star-shaped imprint similar to that of the intact colony remains. This study was undertaken to determine the nature of th...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359009033622
更新日期:1990-10-01 00:00:00
abstract::An interdisciplinary strategy based on a theoretical model for studying dental health was used to analyze the relevance of social and behavioral factors in the evaluation of dental health care for school children. The study comprised pupils who, after a total period of 5 years, differed in their experience with preven...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358409035248
更新日期:1984-04-01 00:00:00
abstract::There is no general agreement on criteria that could be applied to distinguish between orthodontically acceptable and non-acceptable occlusions after the completion of dental development. The aim of the present study was to analyse morphological and functional features that could be used as an index to define an accep...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163502753740188
更新日期:2002-06-01 00:00:00
abstract::The purpose of this study, comprising two parts, was to investigate the congruence between answers given by general dentists in questionnaires concerning prosthodontic services and the recorded information on the services actually performed by each dentist. In Part I it is investigated whether questionnaire reports of...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163599429048
更新日期:1999-02-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to ascertain whether child-related and parent-related characteristics were associated differently with oral health-related lifestyle among boys and girls. MATERIAL AND METHODS:The study population consisted of 5th and 6th graders and their parents in Pori, Finland. There were 1691 c...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350701308356
更新日期:2007-08-01 00:00:00
abstract:OBJECTIVE:The aim of the present study was to directly compare Carisolv and Papacarie regarding the volume of removed tissue (RT) and dentin mineral density (DMD) after excavation. MATERIALS AND METHODS:Twenty permanent molars were randomized into two groups where caries was excavated using Carisolv or Papacarie follo...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016357.2017.1406614
更新日期:2018-05-01 00:00:00
abstract::Our aim was to determine whether masseter muscle (M) and plasma (P) levels of prostaglandin E2 (PGE2) or leukotriene B4 (LTB4) are influenced by local glucocorticoid administration and whether such changes would be associated with corresponding changes in local pain or hyperalgesia. Eighteen patients with fibromyalgia...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163502753471970
更新日期:2002-01-01 00:00:00
abstract::In the present investigation the microstructure and bonding between the wrought and cast elements of the post and core specimens were evaluated with respect to the preheating temperature of the investment. Clinically sized specimens were produced from one type III gold casting alloy in combination with two different w...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358209019819
更新日期:1982-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the surface roughness of IPS Empress 2 ceramic when treated with different finishing/polishing protocols. MATERIALS AND METHODS:Sixteen specimens of IPS Empress 2 ceramic were made from wax patterns obtained using a stainless steel split mold. The specimens were glazed (Stage 0-S0, control) and d...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2012.690570
更新日期:2013-05-01 00:00:00
abstract::The purpose of this study was to obtain data on the oral hygiene practices, oral hygiene status, and periodontal health among primary school children in Nairobi. The study group consisted of 513 children, 262 aged 6-8 years and 251 aged 13-15 years. The children were from 6 schools randomly selected among the 154 publ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359109005923
更新日期:1991-10-01 00:00:00
abstract::The plaque and gingival condition in 232 Swedish schoolchildren aged 13-14 years has been related to the following predictors; plaque, toothbrushing frequency and technique, bristle stiffness of the toothbrush, smoking habits, use of snuff, social class and sex. Multiple regression analyses have been performed in orde...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358209024074
更新日期:1982-01-01 00:00:00
abstract:OBJECTIVE:Semaphorin 3A (Sema3A) is an essential chemorepellant controlling peripheral axon pathfinding and patterning, but also serves non-neuronal cellular functions. Incisors of rodent are distinctive from molars as they erupt continuously, have only one root and enamel is present only on the labial side. The aim of...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2011.600717
更新日期:2012-05-01 00:00:00