Influence of apical patency and filling material on healing process of dogs' teeth with vital pulp after root canal therapy
Autor: | José Arlindo Otoboni Filho, Mauro Juvenal Nery, Pedro Felício Estrada Bernabé, Arnaldo Sant'anna Júnior, Roberto Holland, Sueli Satomi Murata, Eloi Dezan Junior, Valdir de Souza |
---|---|
Přispěvatelé: | Universidade Estadual Paulista (Unesp), Universidade de Marília (UNIMAR), UNIP Faculty of Dentistry |
Rok vydání: | 2005 |
Předmět: |
Periodontal Ligament
Root canal endodontic sealer Dentistry Connective tissue Statistics Nonparametric Calcium Hydroxide Root Canal Filling Materials chemistry.chemical_compound Dogs Tooth Apex Root Canal Obturation Borates Eugenol medicine Animals Periodontal fiber General Dentistry Dental Pulp Dental Cementum Analysis of Variance Wound Healing Calcium hydroxide business.industry Drug Combinations Resins Synthetic Barium sulfate medicine.anatomical_structure chemistry root canal treatment Pulp (tooth) apical patency Dental cementum Barium Sulfate Zinc Oxide business Bismuth |
Zdroj: | SciELO Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Brazilian Dental Journal, Volume: 16, Issue: 1, Pages: 16-9, Published: APR 2005 Brazilian Dental Journal v.16 n.1 2005 Brazilian Dental Journal Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP |
ISSN: | 0103-6440 |
Popis: | Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:58:56Z No. of bitstreams: 1 S0103-64402005000100002.pdf: 590917 bytes, checksum: 6d64c3be46b629a5bfffd10330feb682 (MD5) Made available in DSpace on 2013-08-22T18:58:56Z (GMT). No. of bitstreams: 1 S0103-64402005000100002.pdf: 590917 bytes, checksum: 6d64c3be46b629a5bfffd10330feb682 (MD5) Previous issue date: 2005-04-01 Made available in DSpace on 2013-09-30T19:55:10Z (GMT). No. of bitstreams: 2 S0103-64402005000100002.pdf: 590917 bytes, checksum: 6d64c3be46b629a5bfffd10330feb682 (MD5) S0103-64402005000100002.pdf.txt: 27938 bytes, checksum: eeaab533c833a643bb0d334915730646 (MD5) Previous issue date: 2005-04-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:44:27Z No. of bitstreams: 2 S0103-64402005000100002.pdf: 590917 bytes, checksum: 6d64c3be46b629a5bfffd10330feb682 (MD5) S0103-64402005000100002.pdf.txt: 27938 bytes, checksum: eeaab533c833a643bb0d334915730646 (MD5) Made available in DSpace on 2014-05-20T13:44:27Z (GMT). No. of bitstreams: 2 S0103-64402005000100002.pdf: 590917 bytes, checksum: 6d64c3be46b629a5bfffd10330feb682 (MD5) S0103-64402005000100002.pdf.txt: 27938 bytes, checksum: eeaab533c833a643bb0d334915730646 (MD5) Previous issue date: 2005-04-01 Foi propósito deste trabalho observar o processo de reparo de dentes de cães após obturação dos canais com dois cimentos diferentes, fazendo ou não a patência apical. Após uma sobreinstrumentação, os canais receberam um curativo de uma solução de corticosteróide-antibiótico por 7 dias, com o objetivo de obter invaginação de tecido conjuntivo para dentro dos canais. Após esse período, esse tecido foi totalmente removido em metade dos casos (grupos com patência apical) e preservados no restante dos casos (grupos sem patência apical). Os canais foram obturados pela técnica da condensação lateral empregando um cimento a base de hidróxido de cálcio (Sealer Plus) ou um cimento de Grossman (Fill Canal). Os animais foram sacrificados por overdose anestésica 60 dias após o tratamento endodôntico e as peças anatômicas foram obtidas e preparadas para análise histológica. Os dados obtidos foram analisados com base em diversos parâmetros histomorfológicos. Os resultados foram melhores nos grupos sem patência apical (p=0,01) do que nos grupos com patência. Dentre os cimentos estudados, os melhores resultados foram observados com o cimento Sealer Plus (p=0,01). em conclusão, tanto a patência apical (presença ou ausência) quanto o tipo de material obturador de canal influíram no processo de reparo apical de dentes de cães com polpas vitais após tratamento endodôntico. O emprego de um cimento a base de hidróxido de cálcio em dentes sem patência apical promoveu os melhores resultados, dentre as condições experimentais propostas. The purpose of this study was to investigate the periapical healing process of dogs' teeth with or without apical patency and after root canal filling with two types of sealers. Forty roots of premolars and incisors were utilized. The root canals were overinstrumented and dressed with a corticosteroid-antibiotic solution for 7 days to obtain ingrowth of periapical connective tissue into the canals. After this period, the tissue was removed in half of the specimens (groups with patency) and preserved in the other half (groups without patency). Canals were filled by lateral condensation technique with gutta-percha points and either a calcium hydroxide-based sealer (Sealer Plus) or a Grossman's cement (Fill Canal). The animals were killed by anesthetic overdose 60 days after the endodontic treatment and anatomic pieces were obtained and prepared for histologic examination. Data were evaluated in a blind analysis on the basis of several histomorphologic parameters. The groups without patency had better results (p=0.01) than those in which the ingrown connective tissue was removed. Comparing the sealers, Sealer Plus had significantly better results (p=0.01) than Fill Canal. In conclusion, both the apical patency (presence or absence) and the type of root canal filling material influenced the periapical healing process in dogs' teeth with vital pulp after root canal treatment. The use of a calcium hydroxide-based sealer in teeth without apical patency yielded the best results among the experimental conditions proposed. UNESP Faculty of Dentistry of Araçatuba Department of Restorative Dentistry UNIMAR Faculty of Dentistry UNIP Faculty of Dentistry UNESP Faculty of Dentistry Department of Pediatric and Social Dentistry UNESP Faculty of Dentistry of Araçatuba Department of Restorative Dentistry UNESP Faculty of Dentistry Department of Pediatric and Social Dentistry |
Databáze: | OpenAIRE |
Externí odkaz: |