Clinical evaluation of a resin-modified glass-ionomer liner for cervical dentin hypersensitivity treatment.
OBJECTIVE
To evaluate the effectiveness of two agents for treating cervical dentin sensitivity associated with gingival recession or noncarious cervical lesions.


METHODS
44 patients with at least mild sensitivity affecting cervical dentin were enrolled in a longitudinal randomized clinical trial. A resin-based desensitizer or an experimental glass-ionomer was assigned to treat at most two teeth from each side of the mouth. Sensitivity was assessed by tactile and cold tests, measured with a Visual Analogue Scale at baseline, after treatment, and at 1 week, 1, 3, 6, and 12 months after treatment. Other noteworthy clinical observations were recorded.


RESULTS
Both treatments effectively reduced dentin sensitivity (mixed linear model analysis). Sensitivity score for the glass-ionomer was significantly lower than for the resin-based desensitizer after treatment and at all follow-up periods (P < 0.0001). Some overhanging margins were observed in the glass-ionomer group, which could accumulate plaque and cause gingivitis. Despite material loss from some teeth treated with the glass-ionomer, the follow-up sensitivity scores were still lower than baseline scores.
Tantbirojn
Daranee
D
Department of Operative Dentistry, Chulalongkorn University, Bangkok, Thailand. tant0002@umn.edu
Poolthong
Suchit
S
Leevailoj
Chalermpol
C
Srisawasdi
Sirivimol
S
Hodges
James S
JS
Randall
Ros C
RC
D000328:Adult; D000368:Aged; D003080:Cold Temperature; D003736:Dental Cavity Lining; D003807:Dentin Sensitivity / Q000209:etiology / Q000628:therapy*; D005260:Female; D005500:Follow-Up Studies; D005889:Gingival Recession / Q000150:complications; D005899:Glass Ionomer Cements / Q000737:chemistry; D005976:Glutaral / Q000737:chemistry; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008689:Methacrylates / Q000737:chemistry; D008875:Middle Aged; D010147:Pain Measurement; D019279:Resin Cements / Q000737:chemistry; D019237:Tooth Cervix / Q000473:pathology*; D014076:Tooth Diseases / Q000150:complications; D014110:Touch; D016896:Treatment Outcome
D005899:Glass Ionomer Cements; D008689:Methacrylates; D019279:Resin Cements; C111486:gluma desensitizer; D005976:Glutaral