The goal of this clinical trial is to determine whether strontium-doped bioactive glass-ceramic (SBGC)-filled dentine adhesive is effective in relieving dentine hypersensitivity. The main question it aims to answer is:
Is SBGC-filled dentine adhesive more effective in reducing dentine hypersensitivity than non-SBGC-filled dentine adhesive?
Researchers will compare SBGC-filled dentine adhesive to a dentine adhesive to see if SBGC-filled dentine adhesive is more effective at relieving dentine hypersensitivity.
Participants will receive a single application of either SBGC-filled dentine adhesive (intervention group) or dentine adhesive (control group) on the root surfaces of teeth presenting with pain subject to an air-blast test. The degree of pain will be assessed using a Sensitivity Score at baseline, immediately after application of either the intervention dentine adhesive or control dentine adhesive. The participants will visit the clinic at 1 month, 3 months and 6 months for re-assessment of the severity of dentine hypersensitivity.
individuals who experienced cervical dentine sensitivity for 1 month or more
1) <20 teeth; 2) teeth with poor oral hygiene, severe periodontal conditions, with caries, faulty restorations, dentine exposure at the occlusal surface, covered by prosthetics or orthodontic appliances, or undergoing endodontic treatment; 3) currently using or have used any desensitizing agents in the past 3 months; or have undergone restorative treatment on the sensitive tooth; 4) with a severe medical condition or in chronic use of a medication that could have interfered with the perception of pain or any condition/medication that causes xerostomia
Parallel
Strontium-doped bioactive glass-ceramic-filled dentine adhesive
DrugStrontium-doped bioactive glass-ceramic-filled dentine adhesive Strontium-dope bioactive glass-ceramic: Dencare (Chongqing) Oral Care Company Limited Dentine adhesive: ScotchbondTM Universal Adhesive, 3M ESPE, Deutschland GmbH, Neuss, Germany
Universal dentine adhesive
Other interventionuniversal dentine adhesive (ScotchbondTM Universal Adhesive, 3M ESPE, Deutschland GmbH, Neuss, Germany)
Severity of dentine hypersensitivity measured by a sensitivity score
The tooth/teeth with dentine hypersensitivity will be identified. A 3-in-1 air syringe will be used to provide a continuous air blast for 5 seconds. The participants will rate the degree of pain of all the teeth under assessment using a Sensitivity Score (SS) which is a visual analog scale modified with the addition of adjective words and facial expression diagrams according to the verbal descriptor scale. The SS ranges from 0 to 10, where 0 indicates no discomfort and 10 indicates maximal pain causing significant distress.
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