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Titolo:
Osteogenesis in the glenoid fossa in response to mandibular advancement
Autore:
Rabie, ABM; Zhao, Z; Shen, G; Hagg, EU; Robinson, W;
Indirizzi:
Univ Hong Kong, Fac Dent, Hong Kong, Hong Kong, Peoples R China Univ Hong Kong Hong Kong Hong Kong Peoples R China Kong, Peoples R China W China Univ Med Sci, Coll Stomatol, Dept Orthodont, Chengdu, Peoples R China W China Univ Med Sci Chengdu Peoples R China , Chengdu, Peoples R China Shanghai Second Med Univ, Sch Stomatol, Dept Orthodont, Shanghai, Peoples R China Shanghai Second Med Univ Shanghai Peoples R China ghai, Peoples R China
Titolo Testata:
AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS
fascicolo: 4, volume: 119, anno: 2001,
pagine: 390 - 400
SICI:
0889-5406(200104)119:4<390:OITGFI>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
MONKEYS MACACA-MULATTA; CLASS-II TREATMENT; TEMPOROMANDIBULAR-JOINT; PROTRUSIVE FUNCTION; ACTIVATOR TREATMENT; HERBST TREATMENT; DISPLACEMENT; ADAPTATIONS; APPLIANCE; GROWTH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Rabie, ABM Univ Hong Kong, Prince Philip Dent Hosp, Fac Dent, 34 Hosp Rd, Hong Kong, Hong Kong, Peoples R China Univ Hong Kong 34 Hosp Rd Hong Kong Hong Kong Peoples R China
Citazione:
A.B.M. Rabie et al., "Osteogenesis in the glenoid fossa in response to mandibular advancement", AM J ORTHOD, 119(4), 2001, pp. 390-400

Abstract

The purpose of this study was to identify the temporal sequence of cellular changes in the glenoid fossa and to quantify the amount of bone formationin response to mandibular advancement. One hundred 35-day-old female Sprague-Daw[ey rats were randomly divided into 5 experimental groups (15 rats each) and 5 control groups (5 rats each). In the experimental groups, functional appliances were used to create continuous forward mandibular advancement. The rats were killed after 3, 7, 14, 21, and 30 days. Sections were cut through the glenoid fossa in the parasagittal plane and stained with periodic acid and Schiff's reagent for evaluation of bone formation and with hematoxylin and eosin for observation of cellular response. The results showed that, in the control rats, bone formation was initially higher in the posterior and middle regions than in the anterior region then decreased over time in all regions, In the experimental group, bone formation significantly increased from day 7 to day 30 compared with control rats. Day 21 marked thehighest levels of bone formation in the middle (+184%) and posterior regions (+300%). Mandibular protrusion resulted in the osteoprogenitor cells being oriented in the direction of the pull of the posterior fibers of the disc and also resulted in a considerable increase in bone formation in the glenoid fossa.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 09:57:22