دورية أكاديمية
Laser-induced alveolar bone changes during orthodontic movement: a histological study on rodents.
| العنوان: | Laser-induced alveolar bone changes during orthodontic movement: a histological study on rodents. |
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| المؤلفون: | Habib FA; Centro de Ortodontia e Ortopedia Facial Prof. José Edimo Soares Martins, School of Dentistry, Federal University of Bahia (UFBA), Salvador, Brazil., Gama SK, Ramalho LM, Cangussú MC, Santos Neto FP, Lacerda JA, Araújo TM, Pinheiro AL |
| المصدر: | Photomedicine and laser surgery [Photomed Laser Surg] 2010 Dec; Vol. 28 (6), pp. 823-30. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Mary Ann Liebert, Inc Country of Publication: United States NLM ID: 101222340 Publication Model: Print Cited Medium: Internet ISSN: 1557-8550 (Electronic) Linking ISSN: 15495418 NLM ISO Abbreviation: Photomed Laser Surg Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Larchmont, NY : Mary Ann Liebert, Inc., c2004-c2018 |
| مواضيع طبية MeSH: | Low-Level Light Therapy* , Tooth Movement Techniques*, Alveolar Process/*cytology , Alveolar Process/*radiation effects, Animals ; Cell Count ; Collagen/radiation effects ; Microscopy ; Osteoclasts/cytology ; Rats ; Rats, Wistar |
| مستخلص: | Objective: The aim of this study was to assess by light microscopy changes in alveolar bone during orthodontic movement in rats. Background: Orthodontic movement causes both removal and deposition of bone tissue. The use of laser phototherapy (LPT) is considered an enhancement factor for bone repair. Methods: Thirty Wistar rats were divided into two groups (n = 15) and subdivided according to animal death (7,13, and 19 days). Half of the animals in each group were treated with LPT during orthodontic movement. After animal death, specimens were processed and underwent histological and semi-quantitative analyses (HE and Sirius red). Results: LPT-irradiated specimens showed significantly higher numbers of osteoclasts when compared with controls at both 7 (p = 0.015) and 19 (p = 0.007) days, as well as significant increases in the number of osteoblasts (p = 0.015) between days 7 and 13. The amount of collagen matrix was significantly reduced between days 7 and 13 at both pressure and tension sites in controls (p = 0.015) but not in LPT-treated animals. LPT-treated subjects showed significantly greater deposition of collagen matrix at the pressure site at both the thirteenth (p = 0.007) and nineteenth days (p = 0.001). At the tension site, a significant increase in the amount of collagen matrix was observed in non-irradiated specimens (p = 0.048) between days 7 and 19. Conclusions: LPT caused significant histological changes in the alveolar bone during induced tooth movement, including alterations in the number of both osteoclasts and osteoblasts and in collagen deposition in both pressure and tension areas. |
| المشرفين على المادة: | 9007-34-5 (Collagen) |
| تواريخ الأحداث: | Date Created: 20101215 Date Completed: 20110329 Latest Revision: 20161125 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1089/pho.2009.2732 |
| PMID: | 21142724 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1557-8550 |
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| DOI: | 10.1089/pho.2009.2732 |