Publications by authors named "Veena S Nair"

3 Publications

  • Page 1 of 1

Can Herbal Extracts Serve as Antibacterial Root Canal Irrigating Solutions? Antimicrobial Efficacy of , , , and Sodium Hypochlorite on Biofilms Formed on Tooth Substrate: Study.

J Pharm Bioallied Sci 2020 Aug 28;12(Suppl 1):S423-S429. Epub 2020 Aug 28.

Department of Pedodontics, Faculty of Dentistry, Asian Institute of Medical Science and Technology University, Bedong, Malaysia.

Aim: The purpose of this study was to evaluate the antimicrobial efficacy of , , and on biofilms formed on the tooth substrate. Sodium hypochlorite was used as a positive control. DMSO (dimethyl sulfoxide), the vehicle for the herbal extracts, was used as the negative control.

Materials And Methods: Extracted human teeth were biomechanically prepared, vertically sectioned, placed in the tissue culture wells exposing the root canal surface to to form a biofilm. At the end of the third week, all groups were treated for 15 min with the test solutions and the control. The results were analyzed both quantitatively and qualitatively.

Results: Statistical analysis was performed by using one-way analysis of variance and compared by the Mann-Whitney test using the Statistical Package for the Social Sciences (SPSS) software, version 20.0. The qualitative assay with the 3-week biofilm on the canal portion showed complete inhibition of bacterial growth for NaOCl, whereas samples treated with herbal solutions showed significant reduction of bacterial growth compared to control group, which showed 139.9 × 10 CFU/mL among the experimental herbal solutions groups. has shown maximum bacterial count followed by and .

Conclusion: NaOCl 5% showed maximum antibacterial activity against 3-week biofilm on tooth substrate. , , and showed statistically significant antibacterial activity against 3-week biofilm. The use of herbal alternatives might prove to be advantageous considering the several undesirable characteristics of NaOCl.
View Article and Find Full Text PDF

Download full-text PDF

Source Listing
August 2020

Three-dimensional evaluation of surface roughness of resin composites after finishing and polishing.

J Conserv Dent 2016 Jan-Feb;19(1):91-5

Department of Cons and Endo Cos and Endo, PMS Dental College, Golden Hills, Thiruvananthapuram, Kerala, India.

Aim: This study aims to investigate the effects of finishing and polishing procedures on four novel resin composites using three-dimensional optical profilometer.

Materials And Methods: Four composites classified according to their filler size, were selected: Filtek™ Z350 XT/Nanofill (3M™ ESPE™), Esthet-X HD/Hybrid (Dentsply Caulk), Te Econom/Microfill (Ivoclar Vivadent(®)), Tetric EvoCeram(®) /Nanohybrid (Ivoclar Vivadent(®)). Composite specimens were made in Plexiglass mold and polished with Soflex (3M ESPE), Enhance + Pogo (Dentsply Caulk). Both the systems were used according to the manufacturers' instructions, and the polished surfaces were assessed with an optical profilometer.

Statistical Analysis Used: Kruskal-Wallis test and further pairwise comparison were performed by Mann-Whitney test.

Results: The smoothest surfaces for all the resin composites tested were obtained from the Mylar strip; statistically significant differences were observed among them (P = 0.001). The order of composites was ranked from the lowest to highest surface roughness; Filtek Z350 XT < Te Econom < Tetric EvoCeram < Esthet XHD. Pairwise multiple comparison with Mann-Whitney test showed Filtek Z350 to have the smoothest surface and the least with Teric EvoCeram. Among the polishing systems, Soflex showed the smoothest surface and was significantly different from Pogo (P = 0.046).

Conclusions: The effectiveness of the polishing systems seems to be dependent on the material used, treatment modality and also on the filler particle size.
View Article and Find Full Text PDF

Download full-text PDF

Source Listing
March 2016

The radiculous' premolars: Case reports of a maxillary and mandibular premolar with three canals.

J Nat Sci Biol Med 2015 Jul-Dec;6(2):442-5

Department of Conservative Dentistry and Endodontics, M.R. Ambedkar Dental College and Hospital, Karnataka, India.

Successful root canal therapy requires an accurate diagnosis and management of complex root canal morphology. Although the occurrence of three root canals in maxillary and mandibular premolars is very rare, the clinician must be able to identify it clinically and radiographically to make the necessary changes in his shaping and obturation techniques. We present the endodontic management of a maxillary first premolar with three separate roots and canals, which was diagnosed with the aberrant anatomy only after the access preparation. Then, a mandibular premolar with three root canals and fused roots, which were diagnosed radiographically, is presented. The necessary modifications of the routine clinical steps and the application of dental operating microscope for successful management of the complex anatomy, with emphasis on access modifications and radiographic interpretations are also explained. Teeth with extra roots and/or canals pose a challenge in clinical management. Identifying them early is necessary to facilitate appropriate modifications in treatment protocol, armamentarium to be used and plan optimal number of treatment sittings.
View Article and Find Full Text PDF

Download full-text PDF

Source Listing
August 2015