WordNet

not of major importance; "played a secondary role in world events"
the defensive football players who line up behind the linemen
being of second rank or importance or value; not direct or immediate; "the stone will be hauled to a secondary crusher"; "a secondary source"; "a secondary issue"; "secondary streams"
belonging to a lower class or rank
depending on or incidental to what is original or primary; "a secondary infection"
an appreciable consequence (especially a lessening); "it made a dent in my bank account"
an impression in a surface (as made by a blow) (同)ding, gouge, nick

PrepTutorEJDIC

『第2の』,2番目の;(…の)次の《+『to』+『名』》 / 派生的な,二次的な,あまり重要でない / 中等学校[教育]の / 二次電流の
くぼみ,へこみ / …‘を'くぼませる,へこませる / へこむ,くぼむ
(くし・歯車などの)歯

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1. 歯性感染症の疫学、病因、および臨床症状 epidemiology pathogenesis and clinical manifestations of odontogenic infections
2. 歯の発達障害 developmental defects of the teeth
3. 小児における歯の損傷の評価およびマネージメント evaluation and management of dental injuries in children
4. 遺伝性低リン血症性くる病と腫瘍誘発性骨軟化症 hereditary hypophosphatemic rickets and tumor induced osteomalacia
5. 低リン血症の原因 causes of hypophosphatemia

English Journal

Mechanical properties of methacrylate-based model dentin adhesives: Effect of loading rate and moisture exposure.

Singh V, Misra A, Parthasarathy R, Ye Q, Park J, Spencer P.SourceMechanical Engineering Department, University of Kansas, Lawrence, Kansas, 66045-7609; Bioengineering Research Center, University of Kansas, Lawrence, Kansas, 66045-7609.
Journal of biomedical materials research. Part B, Applied biomaterials.J Biomed Mater Res B Appl Biomater.2013 Jun 7. doi: 10.1002/jbm.b.32963. [Epub ahead of print]
The aim of this study is to investigate the mechanical behavior of model methacrylate-based dentin adhesives under conditions that simulate the wet oral environment. A series of monotonic and creep experiments were performed on rectangular beam samples of dentin adhesive in three-point bending confi
PMID 23744598

Enamel pearls in permanent dentition: case report and micro-CT evaluation.

Versiani M, Cristescu R, Saquy P, Pécora J, de Sousa-Neto M.Source*Correspondence to: Prof. Dr MD Sousa-Neto, Rua Célia de Oliveira Meirelles 350, 14024-070 Ribeirão Preto, SP, Brasil. E-mail: sousanet@forp.usp.br.
Dento maxillo facial radiology.Dentomaxillofac Radiol.2013 Jun;42(6):20120332. doi: 10.1259/dmfr.20120332. Epub 2013 Mar 21.
OBJECTIVES: To investigate the frequency, position, number and morphology of enamel pearls (EPs) using micro-CT (µCT) and to report a case of an EP mimicking an endodontic-periodontic lesion.METHODS: Cone beam CT (CBCT) was performed in a patient to evaluate a radio-opaque nodule observed on the le
PMID 23520396

Influence of Radiopacity of Dental Composites on the Diagnosis of Secondary Caries: The Correlation Between Objective and Subjective Analyses.

Cruz A, Esteves R, Poiate I, Portero P, Almeida S.AbstractSUMMARY This study aimed to objectively evaluate the radiopacity of different dental composites and their subjective influence on diagnosing secondary caries-like lesions and how these results correlate. For objective analysis, three resin specimens (1 mm thick, with a 4-mm internal diameter) were made with four composites: 1) Charisma; 2) Filtek Z250; 3) Prisma AP.H; and 4) Glacier. Three human teeth were selected and then mesio-distally sectioned (1 mm thick) to make the dental specimens. An aluminum (Al) wedge (12 steps, 1 mm thick, 99.8% purity) was used as an internal standard to calculate the radiopacity. For subjective analysis, 20 human teeth were selected and then prepared with a mesio-occluso-distal (MOD) inlay cavity, with half the teeth receiving a round cavity to simulate the carious lesion. The MOD was restored using the composites at four different times. Standardized radiographs were acquired and then digitized (300 dpi and eight-bit TIFF) for both analyses. A histogram objectively measured the pixel intensity values of the images, which were converted into millimeters of Al using linear regressions. Eight observers subjectively evaluated the images using a five-point rating scale to diagnose the caries. The data were statistically analyzed using the Student t-test, the Kappa test, diagnostic testing, and the Pearson correlation coefficient (α=0.05). All materials showed radiopacity values compatible with dental tissues (p>0.05); Glacier was similar to dentin and Prisma AP.H was similar to enamel, while the remaining materials showed a middle radiopacity. Prisma AP.H and Glacier differed (p<0.05) in relation to their accuracy to caries diagnosis, with Glacier having greater accuracy. There was a correlation between objective and subjective analyses with negative linear dependence. An increase in the material's radiopacity could have a subjectively negative influence on the diagnosis of secondary caries; thus, an ideal radiopacity for a dental composite is closer to the dentin image and produces similar attenuation to X-rays than does dentin.
Operative dentistry.Oper Dent.2013 May 28. [Epub ahead of print]
SUMMARY This study aimed to objectively evaluate the radiopacity of different dental composites and their subjective influence on diagnosing secondary caries-like lesions and how these results correlate. For objective analysis, three resin specimens (1 mm thick, with a 4-mm internal diameter) were m
PMID 23713807

Japanese Journal

リン酸カルシウム系ペーストの歯質ケア材としての有用性

千葉敏江,山本雄嗣,下田信治,桃井保子
日本歯科保存学雑誌 58(3), 200-211, 2015
目的 : 本研究の目的は, リン酸カルシウム系セメントの原理を応用したペースト (以下, APペースト) の含有成分による, 歯質ケア材としての有用性を解析することである. この目的に沿って, 1) APペースト由来の元素の象牙質への移行状態について, 2) 象牙質内および塗布面に析出したアパタイト結晶の同定, 3) 象牙質のアパタイト結晶の成長について解析した. 材料と方法 : 本研究ではヒ …
NAID 130005086793

A randomized five-year clinical study of a two-step self-etch adhesive with or without selective enamel etching

CAN SAY Esra,YURDAGUVEN Haktan,OZEL Emre,SOYMAN Mubin
Dental Materials Journal 33(6), 757-763, 2014
… No significant differences were detected in the retention rates, marginal adaptations at dentin side and secondary caries between the groups. …
NAID 130004696786

根管の探索に歯科用コーンビームCTを応用した急性根尖性歯周炎の1症例

荘司佳奈子,島内英俊
日本歯科保存学雑誌 57(2), 188-196, 2014
目的 : 近年, 歯科用コーンビームCT (CBCT) を歯内療法における検査として取り入れることで, 良好な臨床成績を得られた症例が多数報告されている. 今回, 根管の探索が困難であった急性根尖性歯周炎の症例にCBCTを応用したところ, 良好な治療成績が得られたので, その経過について報告する. 症例 : 患者は79歳男性. 左側上顎小臼歯部の強い自発痛および咬合痛を主訴として来院した. 臨床 …
NAID 130004669780

「secondary」

　　[★]

adj.

(地位・価値・重要性などが)第2の、2番目の、(～の)次の(to)。二次的な、従位の

Postmortem examination of patients with such obstructions without a history of clinical manifestations of myocardial ischemia often shows macroscopic scars secondary to MI in regions supplied by diseased coronary arteries, with or without collateral circulation.

in the past the commonest cause of death has been venous thrombosis followed by infection secondary to severe neutropenia and hemorrhage secondary to severe thrombocytopenia.(HIM.661)(重度の好中球減少に次ぐ感染と血小板減少に次ぐ出血に続発する静脈血栓症が昔の最も一般的な死因であった)