Effect of various concentrations of tetracycline hydrochloride demineralization on root dentin surface: A scanning electron microscopic study.
BACKGROUND
Within the last 20 years root demineralization has attracted attention as a periodontal regenerative technique. Topical tetracycline application has been widely reported for use as a conditioner, to decontaminate the root surface and to promote periodontal regeneration. The purpose of this scanning electron microscopic (SEM) study is to evaluate the surface characteristics of demineralized diseased and non-diseased dentine root surfaces using different concentrations of tetracycline hydrochloride (TTC-HCl).


METHODS
This SEM study was carried out in 20 dentin samples obtained from non-diseased human premolars and 20 dentin samples obtained from diseased human premolars. Pure TTC-HCl was applied to the dentin surface at 50 mg/ml, 100 mg/ml and 150 mg/ml concentrations for 3 min in experimental groups while distilled (0 mg/ml) water was applied to the control groups.


METHODS
Mean and standard deviation were estimated from the sample for each study group. Mean values were compared by either one-way ANOVA with Tukey-Honestly significant difference procedure or Kruskal - Wallis one way ANOVA with Mann-Whitney u-test. Further Student's independent t-test/Mann-Whitney u-test was used appropriately to compare the mean values between two independent groups.


RESULTS
In the present study using 100 mg/ml tetracycline seems to be more effective on both diseased and non-diseased dentin surfaces.


CONCLUSIONS
The results of this study confirm that pure TTC-HCl conditioning produced comparable surface characteristics on dentin of both diseased and non-diseased roots with 100 mg/ml concentration for 3 min.
Department of Periodontics, Gitam Dental College and Hospital, Vishakhapatnam, Andhra Pradesh, India.
Tanuja
T
Penmatsa
Satish
S
Varma
Mythili
Killi Prabhakar
KP
Rao
Trinath
T
Kishore
Hima
H
Bindu
Dentine surfaces; demineralization; root conditioning; tetracycline hydrochloride