Influência da movimentação dentária no processo de reparo de dentes com lesão periapical tratados endodonticamente. Estudo histomorfológico em cães
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Data
2003-02-25
Autores
Souza, Ricardo Sampaio de [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
O objetivo deste trabalho foi avaliar a influência da movimentação dentária no processo de reparo de dentes com lesão periapical tratados endodonticamente. Para tanto, lesões periapicais crônicas foram inicialmente induzidas em 30 raízes de incisivos e pré-molares de cães pela exposição dos canais radiculares ao meio oral por um período de 6 meses. Após esse período, 20 canais foram preparados biomecanicamente, e preenchidos com pasta de hidróxido de cálcio e água destilada. Quatorze dias após, os canais foram obturados com guta-percha e cimento Sealapex. Concluído o tratamento endodôntico, os incisivos superiores direitos e os incisivos intermediários inferiores foram submetidos à movimentação ortodôntica com 200 g de força, permanecendo os demais incisivos sem movimentação. As 10 raízes restantes dos pré-molares permaneceram com os canais expostos por 6 meses, não recebendo nenhum tipo de tratamento, servindo como grupo controle. Os aparelhos ortodônticos foram ativados a cada 21 dias durante todo o período experimental (5 meses e 15 dias), após o qual removeu-se os aparelhos e 15 dias após a remoção, os animais foram sacrificados e as peças obtidas preparadas para exame histomorfológico, composto de 16 itens. A análise um a um dos 16 itens de interpretação demonstrou que não houve diferença significante entre eles, contudo, no geral, o grupo sem movimentação comportou-se melhor do que o com movimentação ortodôntica.
The aim of this research was to evaluate the influence of dental movement in the repair process of endodontically treated teeth with periapical lesions. For so, chronic periapical lesions were initially induced in 30 incisal and bicuspid roots of dogs by exposing the root canals to oral environment for a period of 6 months. After this period, 20 canals were biomechanically prepared and filled with calcium hydroxide and distilled water paste. Fourteen days later, the canals were filled with gutta-percha and Sealapex sealer. Concluded the endodontic treatment, the right upper incisors and inferior intermediary incisors were submitted to orthodontic movement with 200g of force, remaining the other incisors without movement. The 10 resting bicuspid roots were not treated, remaining the exposed canals to oral environment for 6 months and which were used as control. The orthodontic appliances were activated every 21 days during the whole experimental period (5 months and 15 days), which was of six months, when the appliances were removed and 15 days later, the animals were sacrificed and the pieces obtained were prepared to histomorphological analysis, composed of 16 items. The analysis one by one of the 16 items of interpretation showed that there was no significant difference between them, however, in general, the group without movement behaved better than with orthodontic movement.
The aim of this research was to evaluate the influence of dental movement in the repair process of endodontically treated teeth with periapical lesions. For so, chronic periapical lesions were initially induced in 30 incisal and bicuspid roots of dogs by exposing the root canals to oral environment for a period of 6 months. After this period, 20 canals were biomechanically prepared and filled with calcium hydroxide and distilled water paste. Fourteen days later, the canals were filled with gutta-percha and Sealapex sealer. Concluded the endodontic treatment, the right upper incisors and inferior intermediary incisors were submitted to orthodontic movement with 200g of force, remaining the other incisors without movement. The 10 resting bicuspid roots were not treated, remaining the exposed canals to oral environment for 6 months and which were used as control. The orthodontic appliances were activated every 21 days during the whole experimental period (5 months and 15 days), which was of six months, when the appliances were removed and 15 days later, the animals were sacrificed and the pieces obtained were prepared to histomorphological analysis, composed of 16 items. The analysis one by one of the 16 items of interpretation showed that there was no significant difference between them, however, in general, the group without movement behaved better than with orthodontic movement.
Descrição
Palavras-chave
Periodontite, Hidroxido de calcio, Movimentação dentária, Periodontite periapical, Periapical periodontitis
Como citar
SOUZA, Ricardo Sampaio de. Influência da movimentação dentária no processo de reparo de dentes com lesão periapical tratados endodonticamente. Estudo histomorfológico em cães. 2003. 230 f. Tese (doutorado) - Universidade Estadual Paulista, Faculdade de Odontologia de Araraquara, 2003.