Publications by authors named "Umarevathi Gopalakrishnan"

6 Publications

  • Page 1 of 1

Assessing the Potential Association Between Microbes and Corrosion of Intra-Oral Metallic Alloy-Based Dental Appliances Through a Systematic Review of the Literature.

Front Bioeng Biotechnol 2021 15;9:631103. Epub 2021 Mar 15.

Division of Oral Pathology, Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia.

Systematic review assessing the association between oral microorganisms and corrosion of intra-oral metallic alloy-based dental appliances. PubMed, Scopus, and Web of Science were searched using keyword combinations such as microbes and oral and corrosion; microbes and dental and corrosion; microorganisms and oral and corrosion; microorganisms and dental and corrosion. Out of 141 articles, only 25 satisfied the selection criteria. s, sulfate-reducing bacteria, sulfate oxidizing bacteria, Veilonella, Actinomyces, were found to have a potential association with corrosion of intraoral metallic alloys such as stainless steel, titanium, nickel, cobalt-chromium, neodymium-iron-boron magnets, zirconia, amalgam, copper aluminum, and precious metal alloys. The included studies inferred an association between oral microorganisms and intra-oral metallic alloys-based dental appliances, although, it is vital to acknowledge that most studies in the review employed an simulation of the intra-oral condition.
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http://dx.doi.org/10.3389/fbioe.2021.631103DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8005604PMC
March 2021

Is the Stability of a Standard Stable Reference Stable Enough?

J Contemp Dent Pract 2020 Jul 1;21(7):711-712. Epub 2020 Jul 1.

Department of Orthodontics, Sri Venkateswara Dental College and Hospital, Chennai, Tamil Nadu, India.

The dogmatic approach of following the past principles has made many significant features of science go unnoticed and unquestioned. One such is the concept of immutability of the anterior contour of the sella turcica. For many decades, we have been using the anterior contour of sella turcica as a stable reference structure to study the growth of the craniofacial skeleton. This was based on the usage by Björk and Skieller. But on analyzing the various studies on the growth and disease of the pituitary gland and its influence on the size and morphology of sella turcica, it seems that the anterior contour of the sella turcica may not be a stable parameter of reference. This article is an attempt to throw light on the intricacies of the association between pituitary gland and sella turcica.
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July 2020

Space requirement and force are important factors in incisor position.

Am J Orthod Dentofacial Orthop 2020 06;157(6):735

Chennai, India.

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http://dx.doi.org/10.1016/j.ajodo.2020.02.004DOI Listing
June 2020

Ammonium-based methacrylate in an experimental dental adhesive.

Am J Orthod Dentofacial Orthop 2017 10;152(4):444

Chennai, India.

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http://dx.doi.org/10.1016/j.ajodo.2017.07.013DOI Listing
October 2017

Assessment of the dental and skeletal effects of fan-type rapid maxillary expansion screw and Hyrax screw on craniofacial structures.

Contemp Clin Dent 2017 Jan-Mar;8(1):64-70

Department of Orthodontics, Tamil Nadu Government Dental College and Hospital, Chennai, Tamil Nadu, India.

Aims And Objectives: The purpose of the study was to assess the skeletal and dental effects of fan-type rapid maxillary expansion (RME) appliance and Hyrax RME appliance on the craniofacial structures.

Materials And Methods: The sample of the study included 12 patients with constricted maxillary arches. Acrylic bonded type of attachment was used for both groups. Changes in sagittal, vertical, and transverse relationship were assessed with lateral and frontal cephalograms, respectively. Intercanine and intermolar widths were measured with stone models. Pre- and immediate post-treatment records were statistically analyzed with Wilcoxon signed-rank test. The differences between the groups were evaluated using Mann-Whitney U-test. Since the data pertaining to intercanine width and intermolar width were normally distributed, parametric test of significance (unpaired -test) was used to compare them.

Results: Results showed that Hyrax presented with significantly greater increments for both nasal cavity width and maxillary width when compared to fan-type RME. Both groups had retroclination of incisors. The increase in the intercanine width was almost similar in both groups.

Conclusion: Fan-type RME caused only minimal expansion of the intermolar width when compared to the Hyrax. The ratio between the intercanine and intermolar width expansion was nearly 4:1 in the fan-type RME and 0.75:1 in Hyrax.
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http://dx.doi.org/10.4103/0976-237X.205066DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5426169PMC
June 2017

The Enigma behind Pituitary and Sella Turcica.

Case Rep Dent 2015 23;2015:954347. Epub 2015 Jun 23.

Department of Prosthodontics and Crown and Bridge, Sri Venkateswara Dental College and Hospital, Thalambur, Chennai 600130, India.

The pituitary gland's role as a functional matrix for sella turcica has not been suggested in orthodontic literature. This paper is an attempt to correlate the role of pituitary gland in the development of sella turcica. A case report of dwarfism associated with hypopituitarism is presented to highlight the above hypothesis.
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http://dx.doi.org/10.1155/2015/954347DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4493269PMC
July 2015
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