PENINGKATAN KADAR BIKARBONAT (HCO3-) SALIVA AKIBAT STIMULASI MEKANIS DAN KIMIA

  • Hervina Hervina Bagian Periodonsia, Fakultas Kedokteran Gigi, Universitas Mahasaraswati, Denpasar
Keywords: bicarbonate levels, saliva, mechanical stimulation, chemical stimulation

Abstract

Salivary buffer capacity is a defense gingival mechanism against acid, mainly determined by the concentration of salivary bicarbonate. Acid formed from glycolysis can cause dental caries. The prevalence of dental caries in Bali are 37.6% with 68.2% of caries experience. DMF-T index Bali is still high at 4.73, where the index DMF-T that can be tolerated by the WHO is 3. Increased levels of salivary bicarbonate can prevent dental caries, influenced by the stimulation of the oral cavity either mechanical or chemical. Salivary buffer capacity will also be effective in oral conditions that are stimulated. The purpose of this study to determine salivary bicarbonate levels due to mechanical and chemical stimulation. This research type is experimental randomized pretest-posttest control group design. Experimental subject were 22 students of the Faculty of Dentistry, University Mahasaraswati Denpasar fulfilled the inclusion criteria, divided into 2 groups. Group I as a control with mechanical stimulation gargling with sterile distilled water, and group II as a treatment by mechanical and chemical stimulation that gargling with 3% of green tea extract. The mean of bicarbonate levels after treatment were analyzed using independent t test, the mean levels of bicarbonate were significantly different between groups I and II (p = 0.000), mean group I 4.86 +0.61 mmol / L and Group II of 6.39 + 0.28 mmol / L. The conclution of this study,salivary bicarbonate levels increased due to mechanical and chemical stimulation.

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