咬耗

WordNet

a means of enforcement; "the treaty had no teeth in it"
one of a number of uniform projections on a gear
something resembling the tooth of an animal
toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell
hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense
the act of rubbing together; wearing something down by friction
sorrow for sin arising from fear of damnation (同)contrition, contriteness
a wearing down to weaken or destroy; "a war of attrition"
a blast of a horn
having teeth especially of a certain number or type; often used in combination; "saw-toothed"

PrepTutorEJDIC

『歯』 / 『歯状の物』,(くし・のこぎり・歯車・フォークなど)歯の働きをする物 / …に歯を付ける;…‘を'歯状(ぎざぎざ)にする
摩擦 / 磨(す)り減ること,消耗 / (人員の)自然減
…もまた,その上 / 『あまりにも』,過度に,必要以上に / 『非常に』,大変,はなはだ(very, extremely) / 《話》《相手の否定の言葉に,肯定で応じて》ところがどうして
(笛・らっぱなどの)プープー鳴る音;(笛・らっぱなどを)プープー鳴らすこと / 〈笛・らっぱなど〉‘を'鳴らす / 〈笛・らっぱなどが〉鳴る
歯のある / V字型の突起がある,ぎざぎざの

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/12/06 01:54:43」(JST)

wiki en

Attrition is the loss of teeth structure by mechanical forces from opposing teeth. Attrition initially affects the enamel and, if unchecked, may proceed to the underlying dentin. Once past the enamel, attrition quickly destroys the softer dentin. Erosion is a very important contributing factor to the loss of tooth substance by attrition. (A. Johansson et al. 2008)

The most common cause of attrition is bruxism. Functional habits are those such as chewing and swallowing, which usually puts very little force on opposing teeth. Parafunctional habits, such as clenching and clicking the teeth together nervously, place greater amounts of forces on opposing teeth and begin to wear the teeth. As expected, wear usually begins on the incisal or occlusal surfaces.

Characteristic Features

Development of a facet (flat surface with circumscribed and well defined border). Opposing tooth facets will match perfectly in occlusion.

Interproximal Attrition

Occurs at proximal surfaces of adjacent teeth when they move against one another on occlusal loading. Movement of teeth is in the vertical direction.

References

Neville, B.W., D. Damm, C. Allen, J. Bouquot. Oral & Maxillofacial Pathology. Second edition. 2002. Page 56. ISBN 0-7216-9003-3.

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UpToDate Contents

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1. シャルコーマリートゥース病などの一次性の遺伝性運動感覚性ニューロパチー hereditary primary motor sensory neuropathies including charcot marie tooth disease
2. 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
3. 歯の解剖学的構造および発達 anatomy and development of the teeth
4. 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
5. 歯の発達障害 developmental defects of the teeth

English Journal

Multimorbidity patterns are differentially associated with functional ability and decline in a longitudinal cohort of older women.

Jackson CA1, Jones M1, Tooth L1, Mishra GD1, Byles J2, Dobson A1.
Age and ageing.Age Ageing.2015 Sep;44(5):810-6. doi: 10.1093/ageing/afv095. Epub 2015 Jul 28.
BACKGROUND: we aimed to identify multimorbidity patterns and relate these patterns to functional ability and decline.METHODS: we included 7,270 participants of the older cohort of the Australian Longitudinal Study on Women's Health, who were surveyed every 3 years from 2002 to 2011. We used factor a
PMID 26220988

The tooth wear evaluation system: a modular clinical guideline for the diagnosis and management planning of worn dentitions.

Wetselaar P1, Lobbezoo F1.
Journal of oral rehabilitation.J Oral Rehabil.2015 Sep 1. doi: 10.1111/joor.12340. [Epub ahead of print]
Tooth wear is a multifactorial condition, leading to the loss of dental hard tissues, viz. enamel and dentine. Tooth wear can be divided into the subtypes mechanical wear (attrition and abrasion) and chemical wear (erosion). Because of its multifactorial aetiology, tooth wear can manifest itself in
PMID 26333037

Morphological analyses and a novel de novo DLX3 mutation associated with tricho-dento-osseous syndrome in a Chinese family.

Li Y1, Han D1, Zhang H1, Liu H1, Wong S1, Zhao N1, Qiu L2, Feng H1.
European journal of oral sciences.Eur J Oral Sci.2015 Aug;123(4):228-34. doi: 10.1111/eos.12197. Epub 2015 Jun 24.
Tricho-dento-osseous (TDO) syndrome, an autosomal-dominant disorder, affects the morphological appearance of the tooth enamel, hair, and bone. Previous studies have confirmed that mutations in the DLX3 gene are responsible for TDO. In this study, we describe a Chinese patient with the typical traits
PMID 26104267

Japanese Journal

Variations in the oral health of millet agriculturalists in the northern 'Great Wall' region of China from the Middle Neolithic to the Sixteen Kingdoms period

OKAZAKI Kenji,WEI Dong,ZHU Hong
Anthropological Science 121(3), 187-201, 2013
… Further analysis using three groups that have a relatively large sample size for each sex and age category also showed an increase in caries, ante-mortem tooth loss, periapical abscess, and calculus prevalence, and a decrease in advanced attrition, suggesting an increased consumption of agricultural foods. … In the Middle Neolithic assemblage, the frequency of advanced dental attrition in males was 3-fold that of females, suggesting the sexual division of labor in this period. …
NAID 130003382734

Sex difference in oral disease of millet agriculturalists from the Take-vatan lineage of the recent Bunun tribe of Taiwan

OKAZAKI Kenji,TSAI Pei-Ying,LU Kuo-Shyan
Anthropological Science 121(2), 105-113, 2013
… This study demonstrates sex-specific oral disease prevalence (caries, antemortem tooth loss, periapical abscess, alveolar resorption, and calculus accretion) as well as degree of dental attrition, using the recent Bunun skeletal assemblage, one of the Taiwanese aboriginals. …
NAID 130003363109

Craniofacial growth changes and dental attrition in the primary dentition

ISIDRO Sharon,ONO Yoshiaki,TAKAGI Yuzo
Pediatric dental journal : international journal of Japanese Society of Pediatric Dentistry 22(1), 43-49, 2012-03-30
NAID 10030558143