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<p><b>OBJECTIVE</b>This systematic review and Meta-analysis aimed to compare the efficacy of calcium sodium phos-phosilicate (CSPS) and potassium nitrate as desensitizing agents for the treatment of dentin hypersensitivity (DH).</p><p><b>METHODS</b>A thorough search in The Cochrane Library, PubMed, Embase, Chinese WanFang Data, CBM, and CNKI were conducted for studies published up to June 2017. Randomized controlled trials (RCTs) of the treatment of DH with CSPS and potassium nitrate toothpaste were included. Quality assessment and data extraction were performed by two reviewers independently, and Meta-analysis was performed by using RevMan 5.3 software.</p><p><b>RESULTS</b>Eight RCTs involving 411 patients were included. Experimental group comprised 203 and control group had 208 patients. The Meta-analysis indicated the superior effect of CSPS dentifrice on air blast sensitivity at 2, 4, 6, and 8 weeks of follow-up [SMD=-1.85, 95%CI (-2.89, -0.81), P=0.000 5, I²=93%], [SMD=-1.61, 95%CI (-1.96, -1.26), P<0.000 01, I²=49%], [SMD=-3.79, 95%CI (-7.18, -0.40), P=0.03, I²=98%], and [SMD=-2.13, 95%CI (-2.69, -1.58), P<0.000 01] , respectively. No significant effects were seen at 12 weeks [SMD=-0.63, 95%CI (-1.47, 0.20), P=0.14, I²=71%]. CSPS dentifrice showed a better desensitizing effect at 2, 4, 6, 8, and 12 weeks of follow-up on cold water sensitivity [SMD=-1.07, 95%CI (-1.48, -0.66), P<0.000 01, I²=69%], [SMD= -1.29, 95%CI (-1.81, -0.76), P<0.000 01, I²=64%], [SMD=-1.20, 95%CI (-1.57, -0.83), P<0.000 01, I²=86%], [SMD=-1.30, 95%CI (-2.51, -0.08), P=0.04, I²=82%], and [SMD=-0.79, 95%CI (-1.27, -0.31), P=0.001], respectively. No significant effects at 1 week of follow-up [SMD=0.00, 95%CI (-0.62, 0.62), P=1]. The favorable effect of CSPS dentifrice on tactile sensitivity was more obvious than the control group at 2, 4, and 8 weeks of follow-up [SMD=-1.31, 95%CI (-2.00, -0.62), P=0.000 2, I²=67%], [SMD=-1.37, 95%CI (-1.74, -0.99), P<0.000 01, I²=23%], and [SMD=-1.33, 95%CI (-1.82,-0.84), P<0.000 01], respectively. No significant effects at 1 week of follow-up [SMD=-0.32, 95%CI (-0.94, 0.31), P=0.32] were observed.</p><p><b>CONCLUSIONS</b>Current evidence indicated that CSPS was more effective than potassium nitrate at reducing DH. The evidence generated by this review was based on a small number of individuals. High-quality and large sample size as well as ideally-designed clinical trials are required in the future before definitive recommendations can be made.</p>
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Background and Aim: Dentinal hypersensitivity is a relatively common problem experienced in clinical dental practice and is characterized by short, sharp pain in response to stimuli such as tactile, thermal, evaporative, osmotic, or chemical. Several agents and treatment modalities have been used in the treatment of this condition. This study was conducted to compare the efficacy of four commercially available toothpastes in the reduction of dentinal hypersensitivity (DH), based on the hypothesis that calcium sodium phosphosilicate (CSPS) group had a better efficacy of the four. Settings and Design: This study design was a prospective, single-blind, randomized, parallel clinical design. Subjects and Methods: A total of 160 cases (93 males and 67 females; aged 20-60 years) were randomly divided into four groups: Group 1 - toothpaste containing 5% potassium nitrate; Group 2 - toothpaste containing 5% CSPS (NovaMin); Group 3 - toothpaste containing 10% strontium chloride; and Group 4 - a herbal formulation. The patients' DH scores for tactile, thermal, and evaporative stimuli were recorded on a visual analog scale at baseline, 2 weeks, 1 month, and 2 months. Statistical Analysis Used: The data were analyzed with Wilcoxon signed-rank test, Kruskal-Wallis test, and Mann-Whitney U-test (P < 0.05). Results: The four desensitizing kinds of toothpaste containing different active agents were effective in relieving dentinal hypersensitivity. However, CSPS group showed a better clinical response at the end of 2 months. Conclusions: The CSPS group showed a better reduction in the symptoms of DH.
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Objective:To study the effect of calcium sodium phosphosilicate(CSP)on the enamel remineralization of primary teeth. Methods:30 extracted human healthy primary molars were collected.Each tooth was cut bucco-lingually and mesial-distally into 4 sections.The sections were assigned randomly into 4 groups(n =30).Demineralization and remineralization cyclic model was estab-lished by etching with 35% phosphate acid for 2 min and then treated by unexposure of the sample to nothing(control,group A),so-dium monofluorophosphat(MFP,group B),CSP(group C)and MFP +CSP(group D).The cyclic was repeated twice daily for 30 d. The enamel surface morphology was observed by SEM and the surface microhardness(SMH)was measured.Results:On the tenth day,squamous morphology was observed on the enamel surface of group A and that of group D appeared less demineralization.The SMH value of group D was significant higher than that of group A(P <0.05).On the thirtieth day,obvious demineralization was ob-served in group A.Group B,C and D appeared surface remineralization.The SMH value of group B,C and D was significant higher than that of group A(P <0.05).Highest SMH value was achieved in group D.Conclusion:CSP combined with fluoride is more ef-fective in the enamel remineralization of primary teeth than the single application of them.
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Objective To observe the clinical effectiveness of calcium sodium phosphosilicate desensitizer for the treatment of root-dentin hypersensitivity.Methods This was a randomized,single-blind,placebo controlled pilot study.135 subjects,a total of 215 teeth with a confirmed diagnosis of root-dentin hypersensitivity were randomly divided into three groups:group 1 (patients treated with 100％ calcium sodium phosphosilicate powder with 7％ calcium sodium phosphosilicate toothpaste),group 2 (patients treated with a placebo powder with 7 ％ calcium sodium phosphosilicate toothpaste),group 3 (patients treated with a placebo powder vith 0.11％ NaF toothpaste).Two standard test stimuli,cool air and cold water,were applied to sensitive root surfaces.Subjects recorded the intensity of sensitivity in response to each stimulus on a visual analogue scale (VAS) at baseline,immediately after powder application and after 2,4 and 6 weeks of twice-daily product use.Results The VAS values stimulated by cool air immediately,and 2,4 and 6 weeks after the treatment were [[(4.87±1.98),(3.85±1.09),(2.03±1.16),(0.59±0.51),respectivly] in Group 1; [(6.35±1.84),(4.83±0.75),(3.17±1.12),(1.45±0.91),respectively] in Group 2; [(6.83±0.78),(6.73±1.54),(5.441.58),(4.18±0.98),respectively] in Group 3.The VAS values stimulated by cold water immediately,and after 2,4 and 6 of treatment were [(6.43±1.01),(4.95±1.21),(3.06±0.86),(1.38±0.92),respectively] in Group 1; [(7.72±0.56),(5.65±0.69),(3.81±0.41),(2.17±0.58),respectively] inGroup2; [(8.380.89),(8.17±1.02),(7.99±0.74),(6.46±0.77),respectively] in Group 3.Compared with before treatment,there were significant differences in VAS values stimulated by the two tests at all time points in Group 1,and after 2,4 and 6 weeks of treatment in Group 2 (all P ＜0.05).Group 3 had significant differences in VAS values stimulated by cool air after 4 and 6 weeks of treatment,and had a significant difference in VAS values stimulated by cold water after 6 weeks of treatment (all P＜0.05).There were significant differences between group 1 and group 2 in the hypersensitivity reduction over baseline by two stimuli at all time point.Conclusions The 7％ calcium sodium phosphosilicate toothpaste shows a good performance in relieving the root dentin hypersensitivity.Moreover,the 100％ calcium sodium phosphosilicate powder can enhance the effectiveness of the 7％ calcium sodium phosphosilicate toothpaste.
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Context: Dentinal hypersensitivity (DH) is a commonly encountered problem. Several products are used in management of DH with varying results. Need is felt in dentistry for a material that chemically reacts, physically occludes and adheres intimately to dentinal tubules to reduce the possibility of its recurrence. One such material is calcium sodium phosphosilicate-Novamin ® . Aim: To evaluate an efficacy of a 5% calcium sodium phosphosilicate (Novamin ® SHY NM TM ) containing dentifrice compared to placebo for the relief of DH. Settings and Design: Outpatients visiting Dept of Periodontics, Yenepoya Dental College with DH were deemed eligible for this case-control clinical trial after an informed consent. Materials and Methods: 30 patients having at least 2 sensitive teeth with a VAS (Visual Analogue Scale) of >3 cm after air blast stimulation, qualified to participate in the study. Test (SHY NM TM toothpaste containing 5% calcium sodium phosphosilicate) and control (Pepsodent toothpaste without a desensitizing agent) groups, each containing 15 participants, were subjected to cold water and air blast stimulation for an assessment of DH at baseline, 6 th and 8 th week using VAS. Statistical analysis used: Unpaired t-test and repeated measures ANOVA. Results: 5% Novamin ® containing dentifrice significantly reduced DH within 6 th and 8 th week of usage when compared to a placebo dentifrice. Conclusions: A Novamin ® containing dentifrice significantly reduced DH when compared to a placebo dentifrice.
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Dentinal hypersensitivity is a common and chronic condition affecting the teeth in a stable percentage of population. Success with treatment of this condition has been limited at best. A new dentifrice containing Calcium Sodium Phosphosilicate material has been developed that results in a significant amount of tubule occlusion reducing tooth hypersensitivity. In this article, Calcium Sodium Phosphosilicate containing dentifrice, which is showing promise is analyzed, based on evidences.