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. 2013 May 1;18(3):e505-9.
doi: 10.4317/medoral.18644.

Cross-sectional study of correlation between mandibular incisor crowding and third molars in young Brazilians

Lilian-Harumi Karasawa  1 , Ana-Cláudia Rossi, Francisco-Carlos Groppo, Felippe-Bevilacqua Prado, Paulo-Henrique-Ferreira Caria
Affiliations

Cross-sectional study of correlation between mandibular incisor crowding and third molars in young Brazilians

Lilian-Harumi Karasawa et al. Med Oral Patol Oral Cir Bucal. .

Abstract

Objectives: The aim of this study was to evaluate transversally the clinical correlation between lower incisor crowding and mandible third molar.

Study design: Three hundred healthy volunteers (134 male and 166 female), aged 20.4 (±2.4) years-old were submitted to a complete clinical examination and filled up a questionnaire about gender, age, total teeth number and presence or absence of superior and inferior third molar. After a recent panoramic radiography were evaluated. The multiple logistic regression showed that none of the studied factors influenced the mandibular incisor crowding.

Results: The proportion of both molars present or both absent was higher than the other conditions (Chi-square, p<.0001). The multiple logistic regression showed that any of the studied factors, influenced (p>.05) the mandibular incisor crowding. Despite the statistical significance, wear orthodontics appliances showed a little correlation (odds ratios < 1.0) in the mandibular incisor crowding.

Conclusion: Presence of maxillary and/or mandibular third molars has no relation with the lower incisor crowding.

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Conflict of interest statement

Conflict of interest statement: The authors have declared that no conflict of interest exist.

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