Comparação do volume de tecido dental removido no acesso endodôntico guiado e convencional em incisivos inferiores
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2019-02-21
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Universidade Federal de Goiás
Resumo
Aim: To compare the volume of dental tissue removed in conventional and
minimally invasive endodontic access with the use of prototyped endodontic
guides, in extracted human mandibular incisors. Materials and methods:
Twenty extracted healthy human mandibular incisors were submitted to the
cone beam computed tomography (CBCT) exam before and after endodontic
access. The teeth were divided into two groups, according to the type of
access: group 1 (G1) conventional access (n = 10) and group 2 (G2)
minimally invasive access (n = 10). For G2, prototyped guides were made in
3D printer through the association of the image of the CBCT with the digital
scanning of the teeth. The evaluation of the volume of dental tissue was
performed by transferring the images in the DICOM format to the
InVesalius® software, in which three-dimensional (3D) reconstruction of
tomography sections was performed. Based on the initial volume (Vi) and
final volume (Vf), the volume of tissue removed (Vr) was calculated by the
formula: Vr = Vi - Vf. Results: There was no difference in Vi (p = 0.589)
and Vf comparisons (p = 0.724) between groups. The mean dental volume
removed at the conventional access and minimally invasive were respectively
31.677 mm 3 and 26.523 mm 3 . There was a mean volume reduction of
10.62% in the conventional access and 10.65% in the minimally invasive
access, with no significant difference between the groups (p = 0.960).
Conclusion: There was no significant difference in the volume of dental
tissue removed when compared to conventional and minimally invasive
endodontic access in extracted human mandibular incisors.
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ELIAS, M. R. A. Comparação do volume de tecido dental removido no acesso endodôntico guiado e convencional em incisivos inferiores. 2019. 40 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2019.