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Caviedes-Bucheli, J. et al.

J. Caviedes-Bucheli, J.A. Correa-Ortiz, A.C. Ballestero, M. Jimenez, A. Munoz, C. Rivero, N. Lombana, H.R. Munoz,

The effect of dentine-bonding agents on substance P release in human dental pulp.

AIM: To quantify the effect of dentine-bonding agents on Substance P (SP) release in healthy human dental pulp tissue. METHODOLOGY: Forty pulp samples were obtained from healthy pre-molars where extraction was indicated for orthodontic reasons. In thirty of these pre-molars, a standardized Class V cavity preparation was performed, and teeth were divided equally into three groups: (i) Unetched-cavity control group: Class V cavities only; (ii) Experimental Group I: 'One-step' self-etch bonding agent was placed in the cavity; and (iii) Experimental Group II: 'Two-step' total-etch bonding agent was placed in the cavity. The remaining ten healthy pre-molars where extracted without treatment and served as an intact-teeth control group. SP was measured by radioimmunoassay. RESULTS: Greater SP release was found in the 'one-step' bonding agent group, followed by the 'two-step' bonding agent group and the unetched-cavity control group. The lower SP values were for the intact-teeth control group. anova showed statistically significant differences between groups (P = 0.0001). Tukey HSD post hoc tests showed statistically significant differences in SP release between the intact-teeth control group and the three other groups (P < 0.01) and between the unetched-cavity control group and the 'one-step' bonding agent group (P < 0.05). No significant difference was found between the 'two-step' bonding agent and the unetched-cavity control group. CONCLUSION: Dentine-bonding agents placed over Class V cavity preparations increased SP release. One-step dentine-bonding agents increased SP release most.[1]

References

The effect of dentine-bonding agents on substance P release in human dental pulp. Caviedes-Bucheli, J., Correa-Ortiz, J.A., Ballestero, A.C., Jimenez, M., Munoz, A., Rivero, C., Lombana, N., Munoz, H.R. Int. Endod. J (2010) [Pubmed]

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