Effect of bamboo salt-NaF dentifrice on enamel remineralization.

PURPOSE: To evaluate the laboratory remineralization effects of a dentifrice with bamboo salt and NaF on artificial caries-like enamel lesions, at both the surface and deep areas. METHODS: Early dental caries lesions were formed by treating bovine enamel samples for 48 hours at 37 degrees C with a demineralization solution (pH 5.0) containing 0.1 M lactic acid, 0.2% Carbopol 907, and 50% saturated calcium phosphate tribasic. pH cycling was then performed by immersing the samples in dentifrice slurry for 2 minutes every 8 hours per day, and in demineralization solution for 4 hours and mixed saliva for the remaining time period. The mixed saliva consisted of 50% human saliva and 50% artificial saliva. The surface hardness and the level of mineral surface alterations were analyzed using a hardness tester and transversal microradiography, among negative control (fluoride free), positive control (sodium fluoride 1100 ppm, Crest Cavity Protection), and test dentifrice (3.0% bamboo salt with sodium fluoride 1,000 ppm) groups. RESULTS: Test and positive control groups significantly increased the level of the surface hardness and decreased mineral loss of the artificial caries-like enamel lesions compared to the negative control (P<0.05). The test dentifrice also significantly decreased the lesion depth compared to the other two groups (P<0.05).

The pulpal anesthetic efficacy of articaine versus lidocaine in dentistry: a meta-analysis.

BACKGROUND: The authors evaluated published evidence from controlled clinical trials regarding the efficacy of two local anesthetic solutions in providing successful pulpal anesthesia. METHODS: The authors searched MEDLINE and Embase databases to identify peer-reviewed randomized controlled trials in which researchers directly compared articaine and lidocaine local anesthetic solutions in adult participants. They extracted study characteristics and outcomes data as a basis for meta-analysis. They completed subgroup analyses for both infiltration and mandibular inferior alveolar block anesthetic techniques. RESULTS: Articaine solutions had a probability of achieving anesthetic success superior to that of lidocaine, with an odds ratio of 2.44 (95 percent confidence interval [CI], 1.59-3.76; P < .0001). The greater odds ratio for articaine increased to 3.81 (95 percent CI, 2.71-5.36; P < .00001) when the authors analyzed only infiltration data. There was weaker, but still significant, evidence of articaine's being superior to lidocaine for mandibular block anesthesia, with an odds ratio of 1.57 (95 percent CI, 1.12-2.21; P = .009), and no difference when the authors considered only symptomatic teeth. CLINICAL IMPLICATIONS: Research evidence supports using articaine versus lidocaine for achieving pulpal anesthesia when the infiltration mode of administration is used. It is premature to recommend articaine for mandibular block anesthesia in cases involving irreversible pulpitis.

Assessing patterns of restorative and preventive care among children enrolled in Medicaid, by type of dental care provider.

BACKGROUND: The authors investigate the relationship of preventive dental treatment to subsequent receipt of comprehensive treatment among Medicaid-enrolled children. METHODS: The authors analyzed Medicaid dental claims data for 50,485 children residing in Wayne County, Mich. The study sample included children aged 5 through 12 years in 2002 who had been enrolled in Medicaid for at least one month and had had at least one dental visit each year from 2002 through 2005. The authors assessed dental care utilization and treatment patterns cross-sectionally for each year and longitudinally. RESULTS: Among the Medicaid-enrolled children in 2002, 42 percent had had one or more dental visits during the year. At least 20 percent of the children with a dental visit in 2002 were treated by providers who billed Medicaid exclusively for diagnostic and preventive (DP) services. Children treated by DP care providers were less likely to receive restorative and/or surgical services than were children who were treated by dentists who provided a comprehensive mix of dental services. The logistic model showed that children who visited a DP-care provider were about 2.5 times less likely to receive restorative or surgical treatments than were children who visited comprehensive-care providers. Older children and African-American children were less likely to receive restorative and surgical treatments from both types of providers. CONCLUSIONS: The study results show that the type of provider is a significant determinant of whether children received comprehensive restorative and surgical services. The results suggest that current policies that support preventive care-only programs may achieve increased access to preventive care for Medicaid-enrolled children in Wayne County, but they do not provide access to adequate comprehensive dental care.