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Assessment of the Oral Health Impact Profile (OHIP-14) improvement of different treatments for dentin hypersensitivity in noncarious cervical lesions—a randomized clinical study



To assess the improvement on oral health-related quality of life (OHRQoL) of individuals with cervical dentin hypersensitivity (CDH) with the noncarious cervical lesion (NCCLs) subjected to different treatments.

Material and methods

A single-blind randomized clinical trial was conducted with patients (n = 74) randomly allocated into three groups according to the treatment performed: PO, potassium oxalate (Oxa-Gel BF); LL, low-power laser irradiation; and POLL, potassium oxalate (Oxa-Gel BF) associated with low-power laser irradiation. The treatments were applied in four steps, weekly. The questionnaire Oral Health Impact Profile (OHIP-14) was applied before initiating and immediately after the fourth session. The greater the sum of the score, the smaller the measurement of OHRQoL.


The total mean values of the variables at the final moment were significantly lower than the initial one for all dimensions (p value ranging from < 0.001 to 0.006). Furthermore, the OHIP-14 scores final analysis between the groups indicated that the POLL group compared to LL had a significantly lower final score for the functional limitation (p = 0.009), physical pain (p = 0.049), and psychological discomfort (p = 0.035) dimensions and that group PO compared to group LL had a significantly lower final score for the functional limitation dimension (p = 0.024).


There was a reduction in the OHIP-14 score for all dimensions, indicating an improvement in patients’ quality of life after the use of desensitizing therapies. Patients in group LL had a higher functional limitation, physical pain, and psychological discomfort.

Clinical relevance

This study indicated improvement of desensitizing therapies for CDH to improve patients’ OHRQoL.

Trial registration: This trial was registered in the Brazilian Clinical Trials Registry Platform (REBEC protocol number RBR-4ybjmt).

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AsGaAl laser:

Arsenate Gallium Aluminum laser


Analysis of covariance


Cervical dentin hypersensitivity


Dentin hypersensitivity


Low-power laser irradiation


Noncarious cervical lesion


Oral Health Impact Profile


Oral Health-Related Quality of Life


Potassium oxalate


Potassium oxalate associated with low-power laser irradiation


Quality of Life


Brazilian Clinical Trials Registry Platform


World Health Organization


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Correspondence to Fernanda Cristina Pimentel Garcia.

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Ethical approval

All procedures performed were in accordance with the ethical standards of the Ethics Committee of the Health Sciences of the University of Brasilia (number 2.740.067) and registered in the Brazilian Clinical Trials Registration Platform under protocol number RBR-4ybjmt and with the 1964 Helsinki declaration and its later amendments.

Conflict of interest

The authors declare no competing interests.

Informed consent

All subjects signed an informed consent form prior to the initiation of the study.


This study was supported by the Postgraduate Program in Dentistry of the University of Brasilia and the Military Fire Department of the Federal District.

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Sgreccia, P.C., Damé-Teixeira, N., Barbosa, R.E.S. et al. Assessment of the Oral Health Impact Profile (OHIP-14) improvement of different treatments for dentin hypersensitivity in noncarious cervical lesions—a randomized clinical study. Clin Oral Invest (2022).

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  • Noncarious cervical lesions
  • Dentin hypersensitivity
  • Oral health-related quality of life
  • Potassium oxalate
  • Low-power laser