Pendahuluan: protein saliva merupakan komposisi yang terkandung dalam salivadan berperan penting bagi keseimbangan ekosistem rongga mulut manusia. Total konsentrasiprotein saliva pada setiap individu bervariasi tergantung pada usia individu tersebut. Banyakdari protein saliva berfungsi untuk memproteksi rongga mulut dengan aktivitas antimikrobayang dimilikinya. Di sisi lain, saliva juga dapat mendukung pertumbuhan mikroorganismerongga mulut dengan membentuk pelikel. Streptococcus mutans bersama dengan pelikelsaliva berpartisipasi dalam adhesi bakteri di permukaan gigi. Selanjutnya mereka akanberkoordinasi sehingga membentuk dental plaque. Tujuan: menganalisis perbedaan massabakteri dan viabilitas Streptococcus mutans setelah pajanan protein saliva subjek anak dansubjek dewasa. Metode: sampel saliva subjek anak dan subjek dewasa dilakukan ujiBradford untuk mengetahui total protein saliva. Kemudian dilakukan perhitungan massabiofilm dengan uji crystal violet staining dan viabilitas bakteri dengan TPC. Setelah itudilakukan uji One-way Anova Hasil: Nilai signifikansi uji statistic menunjukan > 0,05sehingga tidak terdapat perbedaan bermakna massa bakteri maupun viabilitas bakteriStreptococcus mutans setelah pajanan protein saliva yang berasal dari subjek anak dan subjekdewasa secara statistik. Total konsentrasi protein saliva anak dan dewasa condong berbeda.Kesimpulan: Tidak terdapat perbedaan dampak pemajanan protein saliva asal subjek anakdan subjek dewasa terhadap pembentukan biofilm bakteri Streptococcus mutans ditinjau darimassa biofilm dan viabilitas bakteri.

---

Background: Salivary protein is the composition contained in saliva and plays an

important role in the balance of the human oral cavity ecosystem. The total salivary protein

concentration in each individual varies depending on the age of the individual. Many of

salivary proteins function to protect the oral cavity with their antimicrobial activity.

Therefore, saliva can also support the growth of oral microorganisms by forming pellicles

and as a source of nutrtion to bacteria. Streptococcus mutans together with the salivary

pellicle participate in the adhesion of bacteria on the tooth surface. Furthermore, they will

coordinate to form dental plaque. Objective: to analyze the differences in bacterial mass and

viability of Streptococcus mutans after the exposure of the salivary proteins from children

and adult subjects. Methods: Bradford test was used to determine the total of salivary protein

in saliva samples from children and adult subjects. The biofilm mass was calculated by using

crystal violet staining and bacterial viability by TPC. The distribution was analyzed using the

One-way Anova test Results: The p value of the statistical test shows > 0,05 so that there

were no significant difference in bacterial mass and viability of Streptococcus mutans after

exposure of salivary protein from children’s or adult’s saliva statisticaly. However, the total

salivary protein concentrations of children and adults tend to be different. Conclusion: There

was no differenece in the impact of salivary protein exposure from children’s and adult’s

saliva on the formation of Streptococcus mutans biofilm in terms of biofilm mass and

bacterial viability.