Comparative Evaluation of Residual Antibacterial Substantivity of Chlorhexidine, MTAD and Chitosan Against Enterococcus Faecalis in Human Root Dentin - An Study.

Introduction: Complex anatomy of the root canal system results in incomplete debridement with mechanical instrumentation, leaving some areas or root canal walls untouched. There comes the significance of endodontic irrigants with residual antibacterial substantivity which prolongs the post-antibiotic effect, thereby improving the success and predictability of endodontic treatment.

Aim: To comparatively evaluate the residual antibacterial substantivity of 2% chlorhexidine, Biopure MTAD and 2% chitosan against at intervals of 1, 14 and 28 days.

Comparative Evaluation of Efficiency of Different Endodontic File Systems; Protaper Universal, MTWO, Protaper Next, Trunatomy, I-Race in Terms of Remaining Dentin Thickness: An CBCT Analysis.

Introduction: The longevity of an endodontically treated tooth depends on fracture resistance by preserving more remaining dentin thickness. The aim of this study is to determine which file system preserves more remaining dentin thickness.

Materials And Methods: Protaper universal, M-two, Protaper Next, Trunatomy, I-Race and mandibular first premolar.

An Study of Gutta Percha Removal Commencing from the Root Canal Undergoing Endodontic Retreatment using Different Rotary Instrumentation Systems.

Background: In the root canal, the tenacity of microbial infection in either or both the periradicular area is the utmost communal source of endodontic failure. The majority of the gutta percha is removed using hand and rotational equipment.

Aim Of Study: To determine gutta percha removal by effectively utilizing three rotary instrumentation devices all through the endodontic retreatment.

To Drill or not to Drill: A Turnabout in Endodontic Practices during Corona Virus Disease -2019- A South India Based Study.

Introduction: The emergence of coronavirus disease-2019 (COVID-19) pandemic poses an immense global health challenge. It also had a profound impact on dentistry with all elective treatment grinding to half initially and a slow phased return to normal services. The aim of the article is to provide an insight into the effect of COVID-19 on endodontic treatment.

Comparison of the Efficacy of K-File, Canal Brush Technique, and Sonic Irrigation Technique in the Retrievability of Calcium Hydroxide and Metapex Intracanal Medicaments from Root Canals: An Cone-Beam Computed Tomography Analysis.

Background And Objectives: At present, none of the routinely used irrigating agents and activation techniques were able to completely remove the Ca(OH) intracanal medicament placed inside the root canal system during endodontic therapy. With this as the background, the aim of this study was to achieve complete removal of Ca(OH) when mixed with two different vehicles, using various irrigant activation techniques such as K-file, canal brush technique, and sonic irrigation technique, from the root canals of extracted human teeth.

Materials And Methods: Seventy-two mandibular premolar teeth with straight single root canal were selected and filled either with oil-based Metapex or calcium hydroxide powder mixed with distilled water and were activated using different activation techniques such as K-file, canal brush, and sonic MM1500 and NaOCl alone.

Comparative evaluation of angiogenesis using a novel platelet-rich product: An study.

Background: angiogenesis is normal and vital process in growth and development, wound healing, and formation of granulation tissue wherein new blood vessels form from preexisting vessels as part of revascularization. Platelet-rich products promote wound healing associated with angiogenesis. Biomaterials such as titanium were found to be angiogenic.

A comparative study of salivary buffering capacity, flow rate, resting pH, and salivary Immunoglobulin A in children with rampant caries and caries-resistant children.

Purpose: This study was conducted to identify various factors in the development of rampant type of dental caries in South Kerala children, other than high sucrose intake and poor oral hygiene. This was done by comparing the salivary buffering capacity(BC), flow-rate(FR), resting pH and salivary immunoglobulin-A(s-IgA) levels in children who are caries resistant(CR) and who have rampant dental caries.

Materials And Methods: Two study groups, a rampant caries group(RC) with more than five active caries lesions in the early stages and a CR with no caries lesions were selected based on a specific criteria.

The vibrational spectra of the boron halides and their molecular complexes Part 10. The complexes of boron trifluoride with ammonia and its methyl derivatives. An ab initio study.

Ab initio calculations, at the level of second order Møller-Plesset perturbation theory, and using a triple-zeta Gaussian basis set with polarization and diffuse functions on all atoms, have been carried out on the donor-acceptor complexes of boron trifluoride with ammonia and its mono-, di- and trimethyl derivatives. The structures, interaction energies and vibrational spectra of the complexes have been determined. An eclipsed and a staggered conformer have been examined for each complex, and the preferred conformer was found to be the staggered species in each case.