Study of four different protocols to control tooth sensitivity

INTERVENTION: C23.888.592.612.081 E06.170 Patients with an average age of 18 ± 70 years, with a history of dentin hypersensitivity after basic periodontal treatment, with at least three affected teeth will be selected, totaling an n equal to 30 teeth per group, which will be randomized and divided into 3 groups according to the tested protocol. The protocol will be divided into five sessions, and in each session prophylaxis will be performed with paste made with pumice and water, with the aid of a rubber cup, relative isolation with a cotton roll between the cheek / lip and the dental arch, in the desired location. , followed by the application of material for each group, directly in areas with dentin hypersensitivity following the protocol: ‐ Obliterating Desensitizing Agent (ADO): Apply the obliterating agent (Enamelast® ‐ Ultradent, South Jordan, Utah, USA) in the first four sessions, and the fifth and last session will apply adhesive (Single Bond Universal® ‐ 3M ESPE , St.Paul, USA) actively for 20 seconds, followed by light curing for 20 seconds. ‐ Neural Desensitizing Agent (DNA): Apply): Apply the neural agent (Potassium Nitrate 5% ‐ handled at Pharmacy Zaphira Eternal Manipulação, Cascavel, Paraná, Brazil) in the first four sessions, and the fifth and last session will be applied adhesive (Single Bond Universal® ‐ 3M ESPE, St.Paul, USA) actively for 20 seconds, followed by light curing for 20 seconds. ‐ Mixed Desensitizing Agent (ADM): Apply in the first two sessions the neural agent (Potassium Nitrate 5% ‐ handled at the Pharmacy Zaphira Eternal Manipulação, Cascavel, Paraná, Brazil), in the following two sessions the obliterating agent (Enamelast® ‐ Ultradent, South Jordan, Utah, USA), and in the fifth and last session, adhesive (Single Bond Universal® ‐ 3M ESPE, St.Paul, USA) will be applied CONDITION: C07.793.818.124 C07.793.818.500 Dentin Sensitivity; Dentin desensitizing agents; PRIMARY OUTCOME: Evaluate three different protocols for the treatment of dentin hypersensitivity. In this evaluation, the patient will demonstrate the degree of his pain, through tactile test and stimulus controlled with air jets (evaporative stimulus), through the Visual Analog Scale (EVA). The reevaluations will occur after periodontal treatment, immediately after application of the material and after 7, 30 and 60 days. INCLUSION CRITERIA: Patients of both sexes, between 18 and 70 years old; Systemically healthy; Non‐smoking patients; Presence of at least three teeth with dentin hypersensitivity on the buccal surface; Sensitive to thermal and tactile stimuli; With dentin hypersensitivity after periodontal therapy; Do not use methods to contain dentin hypersensitivity; Not having used antibiotics in the last 6 months; Visual Analogue Scale value with sensitivity greater than 4 cm; SECONDARY OUTCOME: Apply the selected treatment protocols and verify their effectiveness in reducing and / or eliminating dentin hypersensitivity. Compare the effectiveness of three different protocols and the progression of pain immediately after application of the material under study and after 7, 30 and 60 days. For the assessment of pain, the Visual Analogue Scale (VAS) with measurements from 0 to 10 cm in which the volunteer indicates their pain will be used, where the number zero (0) represents the “absence of pain” and the number 10 "unbearable pain". At the back, a 10 cm millimeter ruler is attached to EVA, which is not visible to the patient. The cold air stimulus of the triple syringe of dental equipment (60psi), completely free of oil and / or water, will be applied for 2 seconds, at a distance of 1cm, perpendicular to the exposed dentin surface, which will be controlled and standardized by means of a plastic device attached to the triple syringe.