Clinical Oral Investigations

, Volume 22, Issue 6, pp 2291–2297 | Cite as

The effect of dental treatment on oral health-related quality of life in adolescents

  • Bruna Brondani
  • Bruno Emmanuelli
  • Luana Severo Alves
  • Carlos José Soares
  • Thiago Machado Ardenghi
Original Article



The objective of the study is to assess the effect of dental treatment on the oral health-related quality of life (OHRQoL) of adolescents from a city in South Brazil.

Materials and methods

This longitudinal study included 129 adolescents aged 10 to 15 years who received dental caries treatment in a university clinic in Santa Maria, Brazil. The OHRQoL was measured using the Brazilian version of the Child Perceptions Questionnaire for children aged 11 to 14 years (CPQ11–14). The questionnaire was administered through face-to-face interviews before treatment and 1 month after its completion. Paired t tests and effect sizes were used to evaluate changes in CPQ11–14 scores after completion of treatment.


In total, 43.4% of the study participants received solely restorations, 15.5% received endodontic treatment, and 44.2% underwent tooth extractions. The mean CPQ11–14 score before treatment was 15.9 ± 10.3, which decreased to 6.3 ± 6.5 after treatment (P < 0.001). The same pattern was observed in the four domains of CPQ11–14 (oral symptoms, functional limitation, emotional well-being, and social well-being). The effect sizes varied from 0.4 to 1.1, with oral symptoms and emotional well-being domains showing the greatest changes.


Dental treatment resulted in a significant improvement in the OHRQoL of the evaluated adolescents.

Clinical relevance

Providing dental treatment has beneficial effects on the quality of life of adolescents, especially for oral symptoms and emotional well-being.


Oral health-related quality of life Dental treatment Epidemiology Adolescent 



The authors thank the participants and their relatives for their willingness to participate in this study. Thanks also to the undergraduate and graduate students of the Federal University of Santa Maria for their contributions to this research.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments, or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Bruna Brondani
    • 1
  • Bruno Emmanuelli
    • 1
    • 2
  • Luana Severo Alves
    • 1
  • Carlos José Soares
    • 3
  • Thiago Machado Ardenghi
    • 1
  1. 1.Federal University of Santa Maria (UFSM)Santa MariaBrazil
  2. 2.Integrated Regional University of Alto Uruguai and Missões (URI)ErechimBrazil
  3. 3.Federal University of Uberlândia (UFU)UberlândiaBrazil

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