Abstract:
:There are many studies on the relationship between the tongue coating and halitosis, but few have evaluated the bacterial community present in the tongue coating. This study identified bacteria in the tongue coating in individuals with and without halitosis using 16S rRNA analysis. Forty subjects (mean age, 46.1 ± 15.8 years) who visited the halitosis clinic at the University Dental Hospital between 2016 and 2017 were divided into halitosis (n = 32) and non-halitosis (n = 8) groups according to results from an organoleptic test (OT). Additional measurements via gas chromatography (GC) and the Breathtron® instrument confirmed the groupings as the H2S, CH3SH, (CH3)2S, and total volatile sulphur compounds (VSC) levels were significantly higher in the halitosis group than in the non-halitosis group. Bacterial diversity was higher in the halitosis group; the median (quartile) values of the Shannon index were 4.46 (4.21, 4.67) in the halitosis group and 3.80 (3.45, 4.30) in the non-halitosis group. Additionally, the median (quartile) values of the Chao-1 index were 84.0 (77.2, 95.0) in the halitosis group and 71.3 (65.0, 81.5) in the non-halitosis group. These differences in bacterial composition and diversity may further the understanding of causes and treatments for halitosis.
journal_name
Acta Odontol Scandjournal_title
Acta odontologica Scandinavicaauthors
Oshiro A,Zaitsu T,Ueno M,Kawaguchi Ydoi
10.1080/00016357.2020.1754459subject
Has Abstractpub_date
2020-10-01 00:00:00pages
541-546issue
7eissn
0001-6357issn
1502-3850journal_volume
78pub_type
杂志文章abstract:OBJECTIVES:To assess the changing mid-face fracture patterns using a computed tomography scan. METHODOLOGY:Fifty patients with mid-face trauma requiring open reduction and fixation were studied using 1.6 mm axial, sagittal, coronal and 3D images. Images were evaluated clinically, intra-operatively and finally were com...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2014.933252
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVES:The Icelandic Sagas are an important source of information on the way of life and diet habits in Iceland and possibly other Nordic countries 1000 years ago. Archaeological human skull material worldwide has revealed extensive tooth wear, with the main cause believed to be coarse diet. From a graveyard near v...
journal_title:Acta odontologica Scandinavica
pub_type: 历史文章,杂志文章
doi:10.3109/00016357.2015.1075586
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVES:The primary objective of this study was to investigate the association of systemic diseases, use of medications, allergies and tobacco habits with geographic tongue (GT) and fissured tongue (FT) lesions. The secondary objectives were to evaluate the clinical characteristics of tongue lesions and to compare t...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2015.1087046
更新日期:2016-01-01 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 the present work was to assess the adequacy and effectiveness of a public dental program for old-age pensioners. The dental care program offered free consultation and treatment at reduced prices to all pensioners (3072) in a municipality near Oslo in 1979. To study treatment need and access to dental ca...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358509046511
更新日期:1985-10-01 00:00:00
abstract:OBJECTIVE:To investigate the expression of Wnt3a, Wnt10b, β-catenin and DKK1 in the periodontal ligament (PDL) during orthodontic tooth movement (OTM) in rats. MATERIALS AND METHODS:Nickel-titanium closed-coil springs were used to deliver an initial 50 g mesial force to the left maxillary first molars in 30 rats. The ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2015.1090011
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:Dental implants have been widely and successfully used in recent years as an alternative treatment for removable and fixed dental prostheses. The aim of this randomized prospective study was to determine the alveolar bone loss rate (ABLR) and IL-1β levels in one- and two-stage surgical procedures. MATERIALS ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1080/00016357.2017.1367959
更新日期:2017-11-01 00:00:00
abstract:OBJECTIVE:We aimed to determine the clinical effects of titanium-prepared, platelet-rich fibrin (T-PRF) on human palatal mucosal wound healing (PMWH) and to identify its effect on time-dependent changes in palatal soft-tissue thickness (PSTT) in terms of histoconduction, which is a new concept. MATERIALS AND METHODS:F...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1080/00016357.2016.1219045
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVE:To assess the occurrence of interproximal grinding as a caries therapy in primary molars, to what degree grinding replaced conventional restorative caries therapy, to what extent anaesthesia was used while grinding and to assess open comments about attitudes about grinding. MATERIALS AND METHODS:A questionna...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016357.2018.1465995
更新日期:2018-08-01 00:00:00
abstract:OBJECTIVE:Monocyte-derived macrophages (MDMs) ability to phagocytize and produce nitric oxide (NO) was tested against root-canal strains of Enterococcus faecalis submitted to alkaline stress. Root-canal strains were also compared with urine Enterococci. MATERIALS AND METHODS:Enterococcus faecalis were stressed with al...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016357.2018.1533142
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:This paper focuses on clinical responses after 7 days of oral exposure to two resin-based materials as desensitizing agents compared to a fluoride varnish and on morphological and analytical study as a means to elucidate the mechanism of action. MATERIALS AND METHODS:The elemental composition of Vertise™ Flo...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2012.700063
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the influence of coffee and red wine staining on tooth color during and after bleaching. MATERIALS AND METHODS:Blocks obtained from human molars were divided into 11 groups (n = 5) in accordance with the bleaching treatment-peroxide carbamide 10%, 15% or 20%-and in accor...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2013.771404
更新日期:2013-11-01 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::Patients with chronic orofacial pain often undergo endodontic therapy or surgery in an attempt to eliminate or relieve their symptoms. This study examined the relationship among invasive dental treatment, pain reports, and disease conviction in a group of patients referred for pain management. Forty-eight patients ref...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359509005943
更新日期:1995-02-01 00:00:00
abstract:OBJECTIVE:To examine the initial viscosity and adhesive strength of modern denture adhesives in vitro. MATERIALS AND METHODS:Three cream-type denture adhesives (Poligrip S, Corect Cream, Liodent Cream; PGS, CRC, LDC) and three powder-type denture adhesives (Poligrip Powder, New Faston, Zanfton; PGP, FSN, ZFN) were use...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2014.913309
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of the color change of hybrid light-emitting diode (LED) and low-intensity infrared diode laser devices for activating dental bleaching and to verify the occurrence of a color regression with time. MATERIAL AND METHODS:A total of 180 specimens obtained from human premolars were ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2010.549503
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:Previous results regarding human sex chromosome aneuploidies have shown that the X and Y chromosomes affect tooth size and morphology. This study looked for the effect of sex chromosome deficiency on permanent tooth crown heights. MATERIALS AND METHODS:The material, from the Finnish KVANTTI Research Project,...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2014.921327
更新日期:2014-11-01 00:00:00
abstract::Subjective orthodontic treatment need and associated factors were studied in a sample of 226 young Finnish adults. The subjects, applicants to enter the University of Helsinki, were interviewed immediately after their entrance examination. A need for treatment was felt by 14% of the subjects. For 47% of those expressi...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359409029063
更新日期:1994-04-01 00:00:00
abstract::Root length, crown height, and root morphology were studied on intraoral and panoramic radiographs in 33 Turner syndrome patients aged 7.0-16.7 years, subdivided on the basis of karyotype. Thirty-three normal girls aged 10.2-16.4 years served as controls. In the 45X patients and, with the exception of a few teeth, als...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359409029043
更新日期:1994-10-01 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::The occurrence of pores and fatigue fractures in flame-soldered joints of dental gold was measured using fractograms and metallographic preparations. All soldered joints contained pores localized mainly in the solder material adjacent to casting/solder and solder/solder interfaces. The porosity portion of these region...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358309162338
更新日期:1983-10-01 00:00:00
abstract:OBJECTIVE:Acidic fluorides are proposed for the treatment of dental erosion. The aim of this study was to examine the irritation properties of dilute hydrofluoric acid (HF) solutions for potential use in the oral cavity. MATERIAL AND METHODS:Hen's egg test-chorioallantoic membrane (HET-CAM): The CAM was accessed by ca...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016350903117118
更新日期:2009-01-01 00:00:00
abstract::According to several studies on human populations, the mandible deviates on opening significantly more often to the left than to the right. An association between the asymmetry of opening and handedness has been suggested. The present study of 143 left-handed Finnish conscripts showed no significant difference from th...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章,评审
doi:10.3109/00016358909167309
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVES:The present study addresses the effect of fluoride and sodium lauryl sulphate content of toothpaste on oral epithelial cells in vivo conditions. SUBJECTS AND METHOD:Forty volunteers were assigned into two experimental groups, each of them applying the different brand of toothpaste. Every group has been usin...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016357.2019.1577988
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:The aim was to investigate the relationship between soft drink consumption, oral health and some lifestyle factors in Swedish adolescents. MATERIALS AND METHODS:A clinical dental examination and a questionnaire concerning lifestyle factors, including drinking habits, oral hygiene, dietary consumption, physic...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016357.2014.946964
更新日期:2014-11-01 00:00:00
abstract::Salivary mutans streptococci count, dental status, and related factors were studied in male industrial workers (age 38-65 years) with or without access to subsidized dental care. Altogether 315 subsidized workers and 168 controls without subsidy were compared. A prior questionnaire survey had shown that the two study ...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.1080/000163599428959
更新日期:1999-04-01 00:00:00
abstract::Since acute osteoporosis is known to enhance bone remodeling and osteoid formation, it may also affect dentin apposition. We induced osteoporosis in 15-week-old Wistar rats by ovariectomy and dental caries by Streptococcus sobrinus infection in the presence of either a high sucrose (cariogenic) diet or a non-cariogeni...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016359209012780
更新日期:1992-12-01 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::A series of in vitro studies were carried out to determine the effect of commerically available alginate impression materials and gels on enamel solubility. This was performed by 4-min topical application of the tested products on partially demineralized enamel surfaces. The difference in the amounts of calcium and ph...
journal_title:Acta odontologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016358408993869
更新日期:1984-06-01 00:00:00
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