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Objective: Nowadays several ways have been evolved to increase the hardness of the enamel surface as an effort to prevent caries. One of the alternatives that can be used is application of gel with herbal basic material. Material and Methods: Use of herbal basic material is preferred by people because the side effects are relatively small compared to synthetic drugs. Piper betle and cocoa beans are medicinal plants that is often used by people to inhibit caries. This is because piper betle and cocoa beans contain hardness that may influence the enamel surface. Maxillary first premolar teeth, which has been extracted and does not have caries, were divided into 3 treatment groups: piper betle extract gel, cocoa bean extract gel and distilled water as a negative control. Each treatment group consisted of 8 samples. Samples before and after the application in each treatment group were measured using Universal Hardness Tester. Results: Data were collected and analyzed using ANNOVA Repeated test. Showed there were significant differences (p <0.05) of enamel surface hardness before and after the application of cocoa bean extract gel. There were no significant differences (p>0.05) of enamel surface hardness before and after the application of piper betel extract gel and distilled water. Conclusion: That cocoa been extract gel is more effective to increase the hardness of email surface.

journal of dentomaxillofacial science

The effectiveness of betel leaf (piper betle Linn) extract gel and cocoa bean (theobroma cacao L) extract gel application against the hardness of enamel surface in vitro