Effectiveness of a Bonding and a Fluoride Varnish for Long-term Dentin Hypersensitivity Treatment.

Effectiveness of a Bonding and a Fluoride Varnish for Long-term Dentin Hypersensitivity Treatment: a Split-mouth Randomized Clinical Trial

Objectives:

The aim of this in vivo randomized clinical trial with split-mouth design was to evaluate the clinical efficacy of one in-office application of a fluoride containing varnish and in office application of a bonding resin in adult patients presenting with dentin hypersensitivity.

Materials and Methods:

The study cohort consisted of 38 Caucasian outpatients, giving a total of 180 teeth were treated by fluoride varnish (FV) and 160 - by bonding agent (BA). Baseline pain in FV group was slightly higher on both scales (SCHIFF and VAS). Outcome measurements were assessed one or two weeks before product application (enrollment), at baseline at the application days (end of the run-in period: T0a, T0b, T0c), and at 1 week and at 1-2-6 months after first treatment.

Inclusion Criteria:

• absence of systemic pathologies (ASA class I);
• not pregnant or lactating;
• good oral hygiene;
• with ≥1 sensitive tooth with exposed dentin on upper or lower dental arches;
• contemporary presence of exposed dentin both on the left and right counterpart of upper or lower arch.

Exclusion Criteria:

• domestic or in-office professional fluoride application and bleaching 6 months before beginning of treatment;
• long-term use of anti-inflammatory, analgesic and psychotropic drugs;
• eating disorders, systemic conditions that cause or predispose patients to develop dentin hypersensitivity (for example, Gastroesophageal reflux disease);
• periodontal surgery and within the previous three months before the study;
• orthodontic treatment within the previous three months before the study.