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CC BY-NC-ND 4.0 · Journal of Morphological Sciences 2016; 33(02): 090-095
DOI: 10.4322/jms.091615
Original Article
Thieme Revinter Publicações Ltda Rio de Janeiro, Brazil

Morphometric analysis of the masseter muscle post unilateral lower molar exodonty: experimental study

M. I. M. Benigno
1   Department of Morphology, Health Sciences Center, Universidade Federal do Piaui - UFPI, Campus Minister Petronio Portela, Ininga, CEP 64049-550, Teresina, PI, Brazil
,
E. M. I. Amstalden
2   Department of Pathology, Faculty of Medical Sciences, Universidade Estadual de Campinas - UNICAMP, Rua Tessalia Vieira de Camargo,126, Cidade Universitaria Zeferino Vaz, CEP 13083-887, Campinas, SP, Brazil
,
E. A. Liberti
3   Department of Anatomy, Institute of Biomedical Sciences, Universidade de São Paulo - USP, Rua Irineu Prestes, 2415, Cidade Universitária, CEP 05508-900, Butantã, São Paulo, SP, Brazil
,
N. M. S. Leal
1   Department of Morphology, Health Sciences Center, Universidade Federal do Piaui - UFPI, Campus Minister Petronio Portela, Ininga, CEP 64049-550, Teresina, PI, Brazil
,
K. E. L. Rodrigues
1   Department of Morphology, Health Sciences Center, Universidade Federal do Piaui - UFPI, Campus Minister Petronio Portela, Ininga, CEP 64049-550, Teresina, PI, Brazil
,
V. B. Mota
1   Department of Morphology, Health Sciences Center, Universidade Federal do Piaui - UFPI, Campus Minister Petronio Portela, Ininga, CEP 64049-550, Teresina, PI, Brazil
› Author Affiliations
Further Information

Publication History

03 August 2015

08 July 2016

Publication Date:
16 October 2018 (online)

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Abstract

Introduction: To check the morphological changes of the masseter muscle after surgical extraction of inferior molar teeth. Methods: 24 Wistar rats had samples of their masseter muscles analysed in the Optical Microscope (OM). The rats were randomly divided into three groups as follows: GI-15, GII-30, GII-60 days after surgical extraction of inferior molar teeth. Each group had 5 experimental and 3 normal control rats for OM observation. The OM allowed the morphometric study of the masseter muscle. The morphometric study was based on the measurement of the fiber's area by AXION-VISION software. ANOVA test was applied for data analysis. Results: No alteration was detected in all morphometric analysis of the masseter muscle. Conclusion: The masseter muscle adapts to the occlusal modiication caused by the extraction of the molar teeth during the analysed periods.

Keywords

masseter muscle - muscle iber - light microscopy