Biodent TS

  • Biodent TS reduces the risk of cavities and gum disease

All teeth are covered with a biofilm, plague. This is initially a soft thin layer of bacteria, dead cells and food remnants, which have been deposited on the teeth. Plague is formed approximately 24 hours after the tooth has been cleaned. Any plague which is not removed hardens after around three days and it will then no longer be easy to remove it with a toothbrush. The plague then changes to tartar.

Cavities are caused by certain types of bacteria in dental plaque which form acids from sugars in the diet. These bacteria, mutans streptococci, increase in numbers with frequent consumption of sugar and inadequate oral hygiene. 

Gingivitis is an inflammation of the gums. Almost all gingivitis is caused by plaque. Preventing cavities and gingivitis is focussed on the daily removal of plaque by brushing teeth and flossing.

  • Reduction of mutans streptococci in dental plague after 1 month
  • Reduction of more than 90% of the mutans streptococci in dental plague on premolars after 1 month
  • Reduction of total number of bacteria in plaque after 1 week


Biodent TS is a solution of tree resin in alcohol. This formula is used as a carrier of chlorhexidine dental varnishes and this formula has been used for control purposes in research. The measurements have shown that the Biodent TS solution also fights the bacteria which causes cavities and gingivitis.

Schaeken (1989) researched sandarac dental varnish with 0%, 10%, 20% and 40% chlorhexidine. The Biodent TS formula also appeared to have an effect against the total number of bacteria and the mutans streptococci in dental plaque on the chewing surfaces of molars when measured after 1 week. Dental varnishes with 10% and 20% chlorhexidine had no significantly improved effect. The varnish with 40% chlorhexidine was the only one which suppressed mutans streptococci more effectively.

Ie (1993) completed a measurement after 1 month. The Biodent TS formula was also used for control purposes during this research into the effects of dental varnish against mutans streptococci in dental plaque. The Biodent TS formula still appeared to be suppressing mutans streptococci 1 month after application. The reduction was more than 90% on the premolars.

The Biodent TS formula was also used for control purposes during the research into the suppression of mutans streptococci in dental plaque between teeth (Schaeken et al 1991). There was a non-significant suppression of mutans streptococci 1 month after treatment with the Biodent TS formula. The dental varnish with 25% chlorhexidine was not significantly better. Once again, the 40% chlorhexidine varnish had a better effect.

When researching the effect on gum inflammation with the use of brackets, i.e. fixed orthodontic appliances, it was noted that the ethanol sandarac solution managed to inhibit gum inflammation for two weeks (Pretti et al 2015).

before use

after use

The dissolved herbal resin flows into the pores of the tooth surface and then slowly dissolves (Attin et al 2007). We think it’s important for the formula with sandarac to be applied with a syringe and a (plastic) tip. No reduction in cavities was found during the research into the effects of sandarac and chlorhexidine when this was not done (De Soet et al 2002). Research where varnish was applied according to the instructions for use did find a reduction in cavities (Fennis-Ie et al 1998).

Biodent TS is a herbal remedy, it doesn’t contain any chlorhexidine or other chemical substances. We think Biodent TS can achieve the same results as chlorhexidine varnish if it’s used more frequently and at shorter intervals.


  • Biodent TS contains alcohol. The product can cause a burning sensation when it comes into contact with the tongue, gums or inside of the cheek.
  • This product is a medical aid. Carefully read through the instructions before use.

Any questions?

It’s best to contact us via email with any questions about using the product:
We would gladly send you a sample.


  • Attin T, Abouassi T, Becker K, Wiegand A, Roos M, Attin R. A new method for chlorhexidine (CHX) determination: CHX release after application of differently concentrated CHX-containing preparations on artificial fissures. Clin Oral Investig. 2008 Sep;12(3):189-96. doi: 10.1007/s00784-007-0166-4. Epub 2007 Dec 4. PMID: 18057970; PMCID: PMC3085775.

  • Banas JA, Drake DR. Are the mutans streptococci still considered relevant to understanding the microbial etiology of dental caries? BMC Oral Health. 2018 Jul 31;18(1):129. doi: 10.1186/s12903-018-0595-2. PMID: 30064426; PMCID: PMC6069834.

  • Ie YL, Schaeken MJ. Effect of single and repeated application of chlorhexidine varnish on mutans streptococci in plaque from fissures of premolar and molar teeth. Caries Res. 1993;27(4):303-6. doi: 10.1159/000261555. PMID: 8402806. 

  • Fennis-le YL, Verdonschot EH, Burgersdijk RC, König KG, van 't Hof MA. Effect of 6-monthly applications of chlorhexidine varnish on incidence of occlusal caries in permanent molars: a 3-year study. J Dent. 1998 Mar;26(3):233-8. doi: 10.1016/s0300-5712(97)00003-1. PMID: 9594475.

  • Pretti H, Barbosa GL, Lages EM, Gala-García A, Magalhães CS, Moreira AN. Effect of chlorhexidine varnish on gingival growth in orthodontic patients: a randomized prospective split-mouth study. Dental Press J Orthod. 2015 Oct;20(5):66-71. doi: 10.1590/2177-6709.20.5.066-071.oar. PMID: 26560823; PMCID: PMC4644921.

  • Schaeken MJ, van der Hoeven JS, Hendriks JC. Effects of varnishes containing chlorhexidine on the human dental plaque flora. J Dent Res. 1989 Dec;68(12):1786-9. doi: 10.1177/00220345890680121301. PMID: 2600262.

  • Schaeken MJ, Schouten MJ, Van Den Kieboom CW, Van Der Hoeven JS. Influence of contact time and concentration of chlorhexidine varnish on mutans streptococci in interproximal dental plaque. Caries Res. 1991;25(4):292-5. doi: 10.1159/000261379. PMID: 1913768.

  • De Soet JJ, Gruythuysen RJ, Bosch JA, van Amerongen WE. The effect of 6-monthly application of 40% chlorhexidine varnish on the microflora and dental caries incidence in a population of children in Surinam. Caries Res. 2002 Nov-Dec;36(6):449-55. doi: 10.1159/000066536. PMID: 12459619.