Antimicrobial agents in the prevention and treatment of periodontal diseases

Enhanced antibacterial activity of cadmium telluride nanocrystals in combination with 940-nm laser diode on anaerobic bacteria P. gingivalis: an in vitro study

Periodontal disease is one of the most common chronic diseases in the oral cavity that causes tooth loss. Root scaling and leveling cannot eliminate all periodontal pathogens, and the use of antibacterial agents or lasers can increase the efficiency of mechanical methods. The aim of this study was to evaluate and compare the antibacterial activity of cadmium telluride nanocrystals in combination with 940-nm laser diode. Cadmium telluride nanocrystals were prepared by a green route of synthesis in aqueous medium. The results of this study showed that cadmium telluride nanocrystals significantly inhibit the growth of P. gingivalis. The antibacterial property of this nanocrystal increases with increasing its concentration, laser diode 940-nm irradiation and with increasing the time. It was shown that the antibacterial activity of combination of 940-nm laser diode and cadmium telluride nanocrystals is greater than the effect of either alone and can have a similar effect with its long-term presence of microorganisms. This is very important because it is not possible to use these nanocrystals in the mouth and in the periodontal bag for a long time.

Role of Laksha Churna and Madhu Pratisarana after ultrasonic scaling in the management of Dantasharkara (dental calculus): An open-label, standard controlled randomized clinical trial

Background:

Dental calculus is one of the major problems in dentistry, which is characterized by calcified mass that forms on and adheres to the surface of teeth resulting in bad breath, receding gums and chronically inflamed gingiva. It can be correlated with Dantasharkara (dental calculus), which is characterized by the collection of hardened accumulation of Mala (tartar) at the junction of teeth and gums. Ultrasonic scalars are used for the removal of dental calculus for convenience. In texts, Laksha Churna (powder of Laccifer lacca Kerr) has been mentioned as Vranaropaka (wound healing) and indicated for the eliminating plaque through cleaning and polishing tooth surfaces.

Aim:

This study was aimed to evaluate the clinical efficacy of local application of Laksha Churna and Madhu (honey) Pratisarana after Dantasharkara Nirharana (scaling of dental calculus) in the management of Dantasharkara (dental calculus).

Materials and methods:

Patients having calculus deposition, fulfilling the inclusion criteria were selected. In group A, Pratisarana with Laksha Churna (powder) 1 g and Madhu as per requirement was given, whereas in group B, chlor-hexidine gluconate 0.2% for gargling was given for 2 weeks. Ultrasonic scaling was done in both groups before given trial drugs. The outcomes were calculated on the base on changes in score of the subjective parameters like pain, inflammation of gum, bleeding gums, halitosis as well as objective parameters like oral hygiene index, debris index, calculus index, gingival index, and periodontal index. For analysing the effect of the result, Wilcoxon signed-rank test for nonparametric paired data and paired t-test for quantitative parametric paired data was applied.

Results:

After analysing the data, it was found that Ultrasonic scaling of dental calculus followed by Pratisaraņa of honey with Laksha Churna provided statistically significant improvement in calculus index (97.77%) in debris index (84.44%), in oral hygiene index(96.66%), in gingival index (83.33%)and showed 96.15% improvement in periodontal index, whereas Ultrasonic scaling of dental calculus followed by gargling with chlorhexidine gluconate 0.2% provided 80% improvement in calculus index, 70% in debris index, 90% in oral hygiene index, in gingival index by 73.06%, and 93.75% improvement periodontal index which was statistically significant.

Conclusion:

The present study indicates Dantasharkara Nirharana followed by Pratisarana of Laksha Churna and Madhu is comparatively more effective than conventional standard treatment protocol (ultrasonic scaling and chlorhexidine gluconate mouth wash) in the management of dental calculus.

Chlorhexidine - Pharmacology and Clinical Applications

chlorhexidine is a widely used skin antisepsis preparation and is an ingredient in toothpaste and mouthwash. It is an especially effective antiseptic when combined with alcohol. Its antimicrobial effects persist because it is binds strongly to proteins in the skin and mucosa, making it an effective antiseptic ingredient for handwashing, skin preparation for surgery and the placement of intravascular access. Catheters impregnated with chlorhexidine and antimicrobial agents can reduce the incidence of catheter-related bloodstream infections. Contact dermatitis related to chlorhexidine is not common in health care workers. The incidence of contact dermatitis to chlorhexidine in atopic patients is approximately 2.5 to 5.4%. Acute hypersensitivity reactions to chlorhexidine are often not recognised and therefore may be underreported. This review discusses the pharmacology, microbiology, clinical applications and adverse effects of chlorhexidine.