Abstract:
AIM:To evaluate if the kinematics of engine-driven instruments affect the root canal shape. METHOD:The systematic review was registered in PROSPERO (CRD 42017077043). A broad search was performed for articles published before 26 September 2018 in the electronic databases: pubmed, scopus, web of science and Lilacs using MeSH and free terms. Only in vitro studies with human teeth that evaluated root canal shape by volume, surface area and unprepared surface area using reciprocating and rotary system assessed by micro-computed tomography were included. A modified checklist for randomized controlled trials from the Joanna Briggs Institute was used to assess the risk of bias. RESULTS:Twenty-one articles were selected. According to quality assessment, all studies were considered 'moderate methodological quality'. Eighteen articles analysed volume increase, only four studies showed statistically significant difference, three indicating that the reciprocating movement obtained a greater increase in volume than the rotary system and one rotary system obtained a greater increase. Twelve studies analysed surface area, only three studies showed statistically significant difference, two presented a reciprocating system revealing greater amount of surface area and one showed a rotary system obtained a greater amount of surface area. Ten articles evaluated unprepared surface area, two studies that analysed total length, one study presented that the rotary system revealed lower unprepared surface area while another study showed reciprocating with less unprepared area. One study analysed middle and apical third, and observed that the rotary system presented lower unprepared surface area in the middle third. CONCLUSIONS:Both the rotary and reciprocating kinematics produce changes in volume and surface area and leave unprepared areas in the root canal, however reciprocating system showed greater increase of volume and surface area, while the rotary system maintains less unprepared surface area.
journal_name
Acta Odontol Scandjournal_title
Acta odontologica Scandinavicaauthors
Tavares SJO,Sarmento EB,Guimarães LDS,Antunes LAA,Antunes LS,Gomes CCdoi
10.1080/00016357.2019.1570331subject
Has Abstractpub_date
2019-07-01 00:00:00pages
347-358issue
5eissn
0001-6357issn
1502-3850journal_volume
77pub_type
杂志文章abstract:OBJECTIVES:Because of its good matching performance the VITA 3D-Master shade guide (3D) is frequently used for determination of tooth color. Numerous composites/ceramics are, however, available in VITA Classical (VC) shades only. The objective of this study was to investigate the possibility of performing a shade match...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2012.715197
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abstract::Recent studies on prenatal innervation of the jaws have shown that three separate main innervation paths, constituting three bilateral neural developmental fields (incisor field, canine/premolar field, molar field) exist in each jaw. In this communication the sequences in which the fields are innervated are indicated....
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:
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abstract::The influence of different clinical variables on the marginal degradation of amalgam restorations was studied in a clinical trial of class-II amalgam restorations. Seven Scandinavian dentists using 5 different alloys placed 468 restorations in 210 patients. The marginal degradation was scored on impressions of the res...
journal_title:Acta odontologica Scandinavica
pub_type: 临床试验,杂志文章
doi:10.3109/00016359009029069
更新日期:1990-12-01 00:00:00
abstract::The purpose of this study was to assess the antimicrobial effect of TiF4 as compared with equimolar solutions of NaF, APF, and SnF2 and to evaluate the effect, if any, on bacterial growth on topically treated tooth surfaces. In an in vitro study, paper discs impregnated with 20 microliters of equimolar solutions of Sn...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359009005872
更新日期:1990-06-01 00:00:00
abstract::The purpose was to study differences in the caries increment rate as influenced by various sugars. The trial involved almost complete substitution of sucrose (S) by fructose (F) or xylitol (X) during a period of 2 years. There were no significant initial differences as to caries status between the prospective sugar gr...
journal_title:Acta odontologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016357608997711
更新日期:1976-01-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of age on root resorption and distribution along different parts of the root during prolonged light force application. MATERIAL AND METHODS:Orthodontic appliances were placed in two groups of 30 rats (one group 6 weeks old, the other 9-12 months old), with contralateral sides as con...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350801982522
更新日期:2008-04-01 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
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abstract:OBJECTIVE:Ozone was suggested for treatment of hypersensitive dentin. The purpose of this study was to investigate the effect of ozone, with or without the use of desensitizing agents, on patency and occlusion of simulated hypersensitive dentin. MATERIALS AND METHODS:Sixty standardized dentin slabs were randomly divid...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.3109/00016357.2011.572290
更新日期:2011-11-01 00:00:00
abstract::From age 16 to 19 years three groups of young adults received alternative dental programs on termination of the Public Child Dental Health Service (PCDHS) in different municipalities: public group, n = 386; mixed group, n = 161; and private group, n = 261. During the entire study information on dental service use by t...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358909007696
更新日期:1989-06-01 00:00:00
abstract:OBJECTIVE:To incorporate a metal framework into removable partial dentures, the dimensional accuracy of thermoplastic resins requires precision equivalent to conventional acrylic resins. This study aimed to evaluate the fitting accuracy of thermoplastic resins compared to heat-cured acrylic resin. MATERIALS AND METHOD...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2014.946966
更新日期:2015-01-01 00:00:00
abstract::The adsorption onto silicon oxide surfaces from water and 0.1 M acetate buffer containing 10% parotid saliva at 25 degrees C and 35 degrees C and at pH 6 was monitored in situ using ellipsometry. The silicon oxide surface was used as a model for dental enamel. The adsorption kinetics and the reversibility on rinsing w...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359109005920
更新日期:1991-10-01 00:00:00
abstract::In a previous paper it was maintained that the effect of the permanent use of an anterior partial bite-raising splint was an intrusion of the front teeth and an eruption of the others. However, the effect might have been merely a change in the inclination of the front teeth. The present study comprised the same materi...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358309162340
更新日期:1983-10-01 00:00:00
abstract::A method to analyse cephalometric radiographs with the help of a computer has been described. With the system a cephalometric radiograph can be analysed and the results compared to corresponding analyses of individuals with ideal occlusion. The results can also be visualized as schematic figures of the patients. The c...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357809029087
更新日期:1978-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to compare the cytotoxicity of four denture adhesives on human gingival fibroblast cells. MATERIALS AND METHODS:Immortalized human gingival fibroblasts were cultured with one of four different denture adhesives, Polident, Protefix, Staydent or Denfix-A, which was placed in inser...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2014.954266
更新日期:2015-02-01 00:00:00
abstract::Causes of traumatic dental injuries were studied in a sample of 321 Finnish children with injured permanent incisors. In girls the most common cause was falls (36.7%), and with boys sports (33.6%). Among the sports accidents, gymnastics dominated for girls and ice hockey for boys. Bicycling was also a markedly frequen...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358009004714
更新日期:1980-01-01 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::The aim of this study was to compare the effectiveness of Carisolv with that of two other alkaline substances: NaOCl and Ca(OH)2. Sixty extracted teeth were randomly divided into three groups and split down the center of a carious lesion. In group I, one half of the cavity was excavated with NaOCl (0.5%, pH 11.7), the...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350510019810
更新日期:2005-04-01 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::A follow-up study was performed in 128 patients who had started dental treatment at the Faculty of Odontology in Göteborg one year previously. 58 patients had been referred to the Department of Stomatognathic Physiology for investigation and treatment of mandibular dysfunction (TMJ patients) and 70 patients had come t...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358009033598
更新日期:1980-01-01 00:00:00
abstract::Maxillary incisor lingual fossa depth was measured on casts of East Greenland Eskimo dentitions. No directional side asymmetry was found. The present study is the only which shows mean lingual fossa depth to be significantly deeper in the female than in the male. Larger incisor strength in the females is functional as...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358209019818
更新日期:1982-01-01 00:00:00
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journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358209025111
更新日期:1982-01-01 00:00:00
abstract::The aim was to describe the macroscopic and microscopic findings of areas with radiologic erosions in the human temporomandibular joint. An autopsy material of 40 human joints, removed as blocks, was examined with tomography, and an erosion was found in 37 areas. A macroscopic and a microscopic examination focused on ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359209012751
更新日期:1992-04-01 00:00:00
abstract:OBJECTIVE:A major aspect in evaluating the quality of dental materials is their physical properties. Their properties should be a best fit of the ones of dental hard tissues. Manufacturers give data sheets for each material. The properties listed are characterized by a specific value. This assumes (but does not prove) ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2013.878391
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVE:Our aim was to assess the association between mandibular asymmetry and sagittal and transverse occlusal asymmetry in young adult males with class III malocclusion. Our hypotheses were that (1) mandibular asymmetry increases with increasing mandibular length and (2) occlusal asymmetry is correlated with mandib...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016350903460182
更新日期:2010-05-01 00:00:00
abstract:OBJECTIVES:To validate a risk classification model according to the Public Dental Service (PDS) guidelines with the actual 3-year caries outcome in terms of predictive values. MATERIALS AND METHODS:All 19-year-old patients registered at eight public dental clinics in Skåne, Sweden were invited to participate (n = 1699...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2013.788734
更新日期:2013-11-01 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::The present study describes a Swedish family in which the mother and her son were affected with signs of popliteal pterygium syndrome (PPS, OMIM 119500). Both individuals had bilateral complete cleft lip and palate, oral synechiae, paramedian pits on the lower lip, toe syndactyly and a piece of triangular skin overgro...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163500429334
更新日期:2000-04-01 00:00:00
abstract:INTRODUCTION:The aim of this study is to compare the root canal transportation with the PathFile-ProTaper recommended protocol, PathFile-ProTaper modified protocol and stainless steel K-flexofiles. METHODS:Forty-five ISO 15, 0.02 taper S-shaped Endo Training Blocks were divided randomly into three groups of 15 each an...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2013.805430
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:Zirconia implant abutments have gained a much broader clinical use over the past few years. The aim of the present study was to assess the clinical performance of a pre-fabricated zirconium dioxide implant abutment for single-tooth replacement in the posterior region. MATERIALS AND METHODS:Forty implants of ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2013.863970
更新日期:2014-07-01 00:00:00
abstract::The influence of the nature of the root surface on the demineralization and remineralization processes within artificial fluoride-treated caries lesions was investigated using microscopic and X-ray microanalytical methods. Traces of fluoride were detected in the outer parts (about 25 micrometers) of the lesions after ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163502760148025
更新日期:2002-08-01 00:00:00