Evaluation of two morphometric methods of bone loss percentages caused by periodontitis in rats in different locations
| Autor: | Rosilene Fernandes da Rocha, Fernanda de Almeida Prado, Yasmin Rodarte Carvalho, Marcela de Almeida Prado, Daniela Martins de Souza |
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| Přispěvatelé: | Christian Life University Foundation, Universidade Estadual Paulista (UNESP) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Molar
Periodontal Ligament Alveolar Bone Loss Dentistry Experimental studies Tooth Cervix Mandibular second molar stomatognathic system Reference Values medicine Animals Periodontal fiber Rats Wistar Periodontitis Ligation General Dentistry Dental alveolus business.industry Periodontal diseases Mandible Methodology Reproducibility of Results Original Articles medicine.disease Rats lcsh:RK1-715 Disease Models Animal Cementoenamel junction stomatognathic diseases Maxilla lcsh:Dentistry Female business |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Journal of Applied Oral Science, Volume: 18, Issue: 5, Pages: 493-497, Published: OCT 2010 Journal of Applied Oral Science, Vol 18, Iss 5, Pp 493-497 (2010) Journal of Applied Oral Science v.18 n.5 2010 Journal of applied oral science Universidade de São Paulo (USP) instacron:USP Journal of Applied Oral Science |
| Popis: | Made available in DSpace on 2022-04-28T21:37:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-01-01 Objective: The present study evaluated morphometrically bone loss percentages in experimental periodontitis in rats, comparing different locations (lingual mandible, palatal maxilla and buccal maxilla) and two evaluation methods (distance and area methods). Material and Methods: Ligatures were placed around the maxillary right second molar and around the mandibular right first molar in 14 female Wistar rats. The contralateral molars served as intragroup controls. After 4 weeks, the rats were sacrificed and their mandible and maxilla were removed. The specimens were dissected and stained with methylene blue dye. Bone loss was evaluated by two different methods on the surfaces of the defleshed jaw. In the first method, the distance from the cementoenamel junction (CEJ) to the alveolar bone crest was measured in the roots of teeth associated with ligature. In the second method, the area of bone loss was determined using the alveolar tissue bone, CEJ and the proximal region of roots associated with the ligature as reference. The data were converted to bone loss percentages caused by ligature: (ligated - unligated) × 100/ligated. Results: When comparing the distance and area methods, no statistically significant difference was observed (p>0.05). Both methodologies indicated that the maxilla presented greater bone loss than the mandible and it was more accentuated on the buccal side than on the palatal side (p |
| Databáze: | OpenAIRE |
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