Well-established and clinically proven: hydroxyapatite is effective for hypersensitive tooth necks

Introduction

Pain-sensitive teeth can have various causes. Patients suffer in all cases. There are several suggested treatment options than can also be easily incorporated into at-home oral care. This includes mineral salts that can be found more frequently in toothpastes (potassium salts or strontium salts). For this indication, the use of hydroxyapatite toothpastes is also being recommended more and more frequently. The exposed dentinal tubules are sealed with hydroxyapatite particles during the cleaning process.

Question

How effective is hydroxyapatite for treating pain-sensitive teeth compared to two other toothpastes designed to treat pain-sensitive teeth?

Material and methods

This double-blind study compared a total of eight different oral care products with each other. The study comprised a total of 140 test subjects between the ages of 20 and 60 years old. Various tests were conducted on all test subjects at the beginning and the end of the study. This included contact, cold, heat, sweet/sour, air. The entire examination period was 4 weeks. All test subjects completed a questionnaire each day where they stated their subjective perception.

Results

The results of this study showed an improvement in pain sensitivity in over 90% of test subjects who used a hydroxyapatite toothpaste. A considerable improvement could be seen 3-5 days after in patients with a long-term medical history in particular.

Zahnoberfläche mit freiliegenden Dentintubuli vor und nach Behandlung mit Hydroxylapatit.

Conclusion

Hydroxyapatite, particularly in the form of small crystals with a diameter of approx. 2 μm, is very effective for treating pain-sensitive teeth. An improvement can be seen after a short application time.

 

The publication of the study can be found here.

 

Source: Huettemann, R. W. and H. Doenges (1987). „Untersuchungen zur Therapie überempfi ndlicher Zahnhälse mit Hydroxylapatit.“ Dtsch. Zahnärztl. Z. 42: 486-488