DMFT index assessment and microbiological analysis of Streptococcus mutans in institutionalized patients with special needs

Authors

  • Marcia H. Tanaka Universidade Estadual Paulista “Júlio de Mesquista Filho” (Unesp), Araraquara (SP)
  • Karina Bocardi Unesp, Araraquara (SP)
  • Kátia Yukari Kishimoto Unesp, Araraquara (SP)
  • Paula Jacques Universidade de Fortaleza (Unifor)
  • Denise Madalena Palomari Spolidorio Faculdade de Odontologia de Araraquara, Unesp, Araraquara (SP)
  • Elisa Maria Aparecida Giro Faculdade de Odontologia de Araraquara, Unesp, Araraquara (SP)

DOI:

https://doi.org/10.20396/bjos.v8i1.8642300

Keywords:

Streptococcus mutans, Disabled persons, Dental caries

Abstract

Aim: To assess the DMFT (D = decayed; M = missing; F = filled) index of institutionalized patients with mild and moderate physical and mental disabilities and to correlate it with the Streptococcus mutans (S. mutans) counts in the supragingival bacterial biofilm. Methods: Dental examination of 28 patients aged 15 to 25 years was conducted to determine the DMFT index (number of decayed, missing and filled teeth). Supragingival plaque samples were collected from the buccal surfaces of all teeth. The samples were inoculated in SB20 medium and incubated at 37 °C for 48 hours. Spearman’s correlation test was applied (p = 0.05) to evaluate the correlation between the DMFT index and the amount of S. mutans. Results: The mean DMFT recorded was 7.68 and a large mean number of S. mutans colony-forming units (cfu > 106 ) was found. No statistically significant correlation was found between the DMFT index and the number of S. mutans. Conclusions: Under the conditions of this study, no correlation was found between the DMFT index and the number of S. mutans cfu in institutionalized patients with mental retardation and physical disabilities.

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Author Biographies

Marcia H. Tanaka, Universidade Estadual Paulista “Júlio de Mesquista Filho” (Unesp), Araraquara (SP)

Undergraduate student at Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista “Júlio de Mesquista Filho” (Unesp), Araraquara (SP)

Karina Bocardi, Unesp, Araraquara (SP)

DDS, Faculdade de Odontologia de Araraquara, Unesp, Araraquara (SP)

Kátia Yukari Kishimoto, Unesp, Araraquara (SP)

DDS, Faculdade de Odontologia de Araraquara, Unesp, Araraquara (SP)

Paula Jacques, Universidade de Fortaleza (Unifor)

DDS, MS, PhD, Assistant professor of the Dentistry Course, Universidade de Fortaleza (Unifor), Fortaleza (CE)

Denise Madalena Palomari Spolidorio, Faculdade de Odontologia de Araraquara, Unesp, Araraquara (SP)

DDS, MS, PhD, Assistant professor at the Department of Physiology and Pathology, Faculdade de Odontologia de Araraquara, Unesp, Araraquara (SP)

Elisa Maria Aparecida Giro, Faculdade de Odontologia de Araraquara, Unesp, Araraquara (SP)

DDS, MS, PhD, Assistant professor at the Department of Orthodontics and Pediatric Dentistry, Faculdade de Odontologia de Araraquara, Unesp, Araraquara (SP)

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Published

2015-12-17

How to Cite

1.
Tanaka MH, Bocardi K, Kishimoto KY, Jacques P, Spolidorio DMP, Giro EMA. DMFT index assessment and microbiological analysis of Streptococcus mutans in institutionalized patients with special needs. Braz. J. Oral Sci. [Internet]. 2015Dec.17 [cited 2022Jan.25];8(1):9-13. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8642300

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