Browsing by Author "T.P. Chaturvedi"

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Acanthomatous ameloblastoma of anterior maxilla
(2010) M. Bansal; T.P. Chaturvedi; R. Bansal; M. Kumar
The unusual case of acanthomatous ameloblastoma occurring in maxillary left anterior region in a 13-year-old female child is presented with chief complaint of swelling in the upper left anterior region since one year and spacing between maxillary left central incisor and canine. Microscopic examination of surgically excised specimen revealed solid epithelial cell nests with peripheral palisading ameloblastic cells and the central squamous cell assemblage that was consistent with the findings of acanthomatous ameloblastoma type. Acanthomatous ameloblastoma is the extremely rare variant. The present report discusses issues related to the incidence of such formations in the target tissues.
Allergy related to dental implant and its clinical significance
(2013) T.P. Chaturvedi
The oral cavity provides an ideal and unique environment for study of biological processes involving metallic dental aids. Dental materials within the mouth interact continually with physiological fluids. Oral tissues are exposed to a veritable bombardment of both chemical and physical stimuli as well as the metabolism of many species of bacteria; yet, for the most part, oral tissues remain healthy. The pH of saliva varies from 5.2 to 7.8. Teeth, restorations, or any prosthesis including dental implants in the oral cavity have to function in one of the most inhospitable environments in the human body. They are subject to larger temperature and pH variations than most other parts of the body. Corrosion, the graded degradation of materials by electrochemical attack, is of concern particularly when dental implants are placed in the hostile electrolytic environment provided by the human mouth. Allergic reactions may occur from the presence of ions produced from the corrosion of implants. The present article describes various manifestations of allergic reactions due to implant material in the oral cavity. © 2013 Chaturvedi.
An effective way of reactivation of first class appliance
(Scientific Scholar, 2016) Vipul Sharma; Kirti Yadav; Indira Chaturvedi; T.P. Chaturvedi
First class appliance produces rapid distalization of the maxillary first and second molars, even when the second molars are completely erupted. The range of molar distalization is 4-8 mm. It has both buccal and palatal component. Here, we are going to present a technique to reactivate a broken first class appliance for effective distalization. © 2016, Scientific Scholar. All rights reserved.
An overview of orthodontic material degradation in oral cavity
(2010) T.P. Chaturvedi; S.N. Upadhayay
Various types of metallic orthodontic appliances are used in the management of malocclusion. These appliances are placed in oral environnent under many stresses and variations such as masticatory forces, appliance loading, temperature fluctuations, varieties of ingested food and saliva. These metals undergo electrochemical reactions with the oral environment resulting in dissolution or formation of chemical compounds. Various microorganisms and many aggressive ions containing oral environment can cause material degradation (corrosion) and its associated problems during long time exposure. Orthodontic alloys must have excellent corrosion resistance to the oral environment, which is highly important for biocompatibility as well as for orthodontic appliance durability. This article reviews various aspects of corrosion (surface degradation) of orthodontic alloys. It explores the emerging research strategies for probing the biocompatibility of materials. During orthodontic treatment, use of nickel free, better corrosion resistance alloys and less use of fluoride containing toothpaste or gel is expected.
An overview of the corrosion aspect of dental implants (titanium and its alloys)
(2009) T.P. Chaturvedi
Titanium and its alloys are used in dentistry for implants because of its unique combination of chemical, physical, and biological properties. They are used in dentistry in cast and wrought form. The long term presence of corrosion reaction products and ongoing corrosion lead to fractures of the alloy-abutment interface, abutment, or implant body. The combination of stress, corrosion, and bacteria contribute to implant failure. This article highlights a review of the various aspects of corrosion and biocompatibility of dental titanium implants as well as suprastructures. This knowledge will also be helpful in exploring possible research strategies for probing the biological properties of materials.
Assessment of gingival biotype in different facial patterns: A cross‑sectional study
(Wolters Kluwer Medknow Publications, 2023) Vipul Kumar Sharma; Deepak Singh; Roopal Srivastava; T.P. Chaturvedi; Mahesh Khairnar; Akhilesh Kumar Singh
Objective: The aim of the present study is to evaluate the relationship of gingival biotype in different malocclusions. Methods: A total of 157 periodontally healthy subjects (88 males and 69 females) were enrolled in this cross‑sectional study. The study participants were divided into three groups of skeletal class I, class II, and class III. The probe transparency method was used to determine the quality and gingival tissue into thick and thin biotype. Results: There was significant difference in gingival biotype among different skeletal malocclusion with high prevalence of thin gingival biotype in class I subjects and more prevalence of thick biotype in class II and class III individuals (P‑value: 0.022). Pairwise comparison of gingival biotype in class I versus class II showed significant difference (P‑value: 0.032); however in class I versus class III and class II versus class III, the test result was nonsignificant. The overall frequency of thin gingival biotype was significantly less in female subjects with respect to males (P‑value: 0.025). Conclusion: A significant relationship is present between skeletal malocclusion and quality of gingival biotype. The prevalence of thick gingival biotype is found more in females as compared to male individuals. The thin gingival biotype is more commonly seen in skeletal class I than class II and class III. © 2023 National Journal of Maxillofacial Surgery.
Cell proliferation proteins and aggressiveness of histological variants of ameloblastoma and keratocystic odontogenic tumor
(Taylor and Francis Ltd, 2019) K. Gupta; T.P. Chaturvedi; J. Gupta; R. Agrawal
Tumors that originate from the epithelium of the odontogenic apparatus are classified as benign or malignant. The proliferative activity could provide a basis for differences in the biologic behavior among the histological variants of ameloblastoma (AM) and keratocystic odontogenic tumor (KCOT). We examined 32 solid AM and 18 KCOT cases. The AM sample comprised 16 cases of follicular AM, six cases of unicystic AM, eight cases of plexiform AM and two cases of acanthomatous AM. Sections were stained with the Ki-67 antibody. Ten representative fields were selected randomly in each section. For AM, peripheral tall columnar cells of tumor islands/nests/cords were selected. For KCOT, fields were selected in the basal and the suprabasal region of the epithelial lining. We counted the average number of Ki-67 positive cells/field for AM and KCOT. AM exhibited Ki-67 expression in peripheral tall columnar cells, whereas KCOT exhibited Ki-67 expression in the basal and suprabasal layer. No significant difference between AM and KCOT was observed; the cellular proliferative activity varied among the subtypes. No significant difference in Ki-67 expression in acanthomatous, cystic and follicular types of AM was observed, although the plexiform type exhibited significantly higher levels than the other three types. High expression of Ki-67 could be a useful prognostic marker for proliferative activity and a prognostic indicator for recurrence rate of AM and KCOT. © 2019, © 2019 The Biological Stain Commission.
Clinical evaluation of the role of tulsi and turmeric in the management of oral submucous fibrosis: A pilot, prospective observational study
(Medknow Publications, 2015) Adit Srivastava; Rahul Agarwal; T.P. Chaturvedi; Akhilesh Chandra; O.P. Singh
The aim of the present study was to investigate the clinical efficacy of herbal medicines (1 gm tulsi and 1 gm turmeric mixed in glycerine base) for the treatment of oral submucous fibrosis (OSMF). Forty-one patients in the age group of 17- 56 years without any systemic complications were included in the study. The patients were treated with medicines, which were to be applied 3-4 times a day. Blood samples were collected before and after treatment to screen for any systemic changes due to these medications. Burning sensation and mouth opening were recorded before and after treatment. Patients were followed up on monthly subsequent visits for three months. Changes in the burning sensation on visual analogue scale (VAS) scale and difference in the mouth opening were analyzed statistically. A statistically significant improvement was seen in both burning sensation and mouth opening. Tulsi and turmeric offers a safe and efficacious combination of natural products available for symptomatic treatment of OSMF.
Corrosion of orthodontic brackets in different spices:In vitro study
(Wolters Kluwer Medknow Publications, 2014) T.P. Chaturvedi
Context: Moist environment in the mouth varies and causes variable amounts of corrosion of dental materials. This is of concern particularly when metallic implants, metallic fillings, orthodontic appliances are placed in the hostile electrolytic environment in the human mouth. Components of diet rich in salt and spices are important factors influencing the corrosion of metallic appliances placed in the oral cavity. Aims: To study in vitro corrosion of orthodontic metallic brackets immersed in solutions of salt and spices in artificial saliva.; Materials and Methods: Orthodontic brackets were used for corrosion studies in artificial saliva, salt, and spices using electrochemical technique and surface analysis. Electrochemical studies using different parameters were done in solutions of artificial saliva containing salt and spices. Photomicrographs from the optical microscope were also obtained.; Results: Results of corrosion studies have clearly demonstrated that certain spices such as turmeric and coriander are effective in reducing corrosion, whereas salt and red chili have been found to enhance it. Surface analysis of small pits present on the surface of the as-received bracket will initiate corrosion which leads to more pitting.
Corrosive behaviour of implant biomaterials in oral environment
(Taylor and Francis Ltd., 2016) T.P. Chaturvedi
The major groups of implantable materials in dentistry are metals and alloys, ceramics and polymeric materials. Titanium has developed into a well-accepted metallic biomaterial since many decades, its unique properties like biological, mechanical, physiological and functional phenomenon with living tissue has popularised it with many biomechanical applications including arthroplasty, osteosynthesis, pace-maker cases, oral reconstructive procedures, anchorage of bone conductive hearing aids and jewellery. In clinical situation, some properties of implant biomaterials e.g. elastic modulus, tensile strength and ductility are used to aid in the design and fabrication of the prosthesis. It should be noted, however, that no material including implant can be considered universally biocompatible. Objective of present paper is to provide an overview of various aspects of dental implant materials and its interaction with oral environment with special emphasis on their prognosis and clinical behaviour. © 2016 Informa UK Limited, trading as Taylor & Francis Group.
Dermatillomania: In patient undergoing orthodontic treatment
(Wolters Kluwer Medknow Publications, 2014) Adit; Avesh Sachan; T.P. Chaturvedi; Rahul Agrawal; Ajit Vikram Parihar
Dermatillomania is a disorder in which a person habitually picks their skin, and this is a form of self-injury. It can involve any part of the body, but usually involves the face, neck, arms and shoulders. Symptoms often follow an event that has caused severe emotional distress. A dermatillomania or compulsive skin picking episode may be a conscious response to anxiety or depression but is frequently done as an unconscious habit. In this case report, a patient undergoing orthodontic treatment was found to be suffering from dermatillomania and was treated using psychological counseling.
Development of satranidazole mucoadhesive gel for the treatment of periodontitis
(2009) K. Bansal; M.K. Rawat; A. Jain; A. Rajput; T.P. Chaturvedi; S. Singh
The aim of the paper was to develop satranidazole-containing mucoadhesive gel for the treatment of periodontitis. Different mucoadhesive gels were prepared, using various gelling agents like sodium carboxymethylcellulose (SCMC), poloxamer 407, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, and the mucoadhesive polymer carbopol 934P. The selected formulations (based on the mucoadhesive force) were studied for different mechanical properties, such as mucoadhesive strength, hardness, compressibility, adhesiveness, and cohesiveness through Texture Profile Analyzer. In vitro satranidazole release from the prepared formulations was also determined and compared with marketed preparation of metronidazole (Metrogyl® gel). The formulation SC30 (containing SCMC 3% w/v) showed maximum mucoadhesive strength (167.72 ± 3.76 g) and adhesiveness (-46.23 ± 0.34 N∈mm), with low hardness (9.81 ± 0.04 N) and compressibility (40.05 ± 0.48 N∈mm) and moderate cohesiveness (0.87 ± 0.01). SC30 formulation exhibited long-term release. Thus, SC30 gel was evaluated for its clinical effectiveness along with marketed metronidazole gel. At the end of the study (42 days of clinical studies), both formulations were found to significantly reduce the probing depth, plaque index, gingival index, calculus criteria, and bleeding index. However, the SC30 gel was more effective in reducing the above parameters than marketed metronidazole gel. This study confirmed the acceptability and effectiveness of satranidazole gel for treatment of periodontitis. © 2009 American Association of Pharmaceutical Scientists.
Doxycycline poly e-caprolactone nanofibers in patients with chronic periodontitis - A clinical evaluation
(2013) T.P. Chaturvedi; Ruchi Srivastava; A.K. Srivastava; Varun Gupta; Pushpendra Kumar Verma
Aim: To develop a low-dose controlled-release delivery system for the treatment of periodontal infections. A new sustained release drug system of Poly e-caprolactone (PCL) nanofibers containing doxycycline (DOX) was successfully electrospun and evaluated clinically for periodontal diseases. The retentive doxycycline nanofibres were shown to provide a controlled delivery of the drug. Material and Methods: Nanofibers were prepared with DOX in PCL by electrospinning technique. The drug-coated nanofibres provided sustained effect up to a period of 11 days (264 h) and followed first order release. Forty sites in 7 patients (4 females and 3 males) with chronic periodontitis (5-8mm probing depth) were allocated in 2 experimental treatment groups, Group A-SRP (Scaling and Root Planing) + DOX nanofibers and Group B -SRP (Scaling and Root Planing) alone (control group). All these patients were evaluated clinically for probing depth (PD), plaque index (PI) and gingival index (GI). Results: Both the treatment groups were found to be efficacious in the treatment of periodontal disease as demonstrated by improvement in PD, PI and GI. Conclusion: Combination of SRP (Scaling and Root Planing) + DOX nanofibers (Group A) resulted in added benefits compared to the control group.
Effect of dietary spices on the pitting behavior of stainless steel orthodontic bands
(2011) Neelima Mahato; Manu R. Sharma; T.P. Chaturvedi; M.M. Singh
A comparative study of the effect of commonly used dietary spices on the pitting behavior of orthodontic bands made of AISI 304L was carried out using electrochemical experiments. Corrosion parameters were measured after immersing the steel for 24 h in artificial saliva containing spice extract. Cinnamon, cumin, red chili and turmeric caused pitting even in the absence of chloride ions. On adding NaCl, red chili, cinnamon and fenugreek caused severe pitting and coriander was found to inhibit pitting. Micrographs of the specimens show formation of hemispherical pits covered with remnants of passive film. © 2011 Elsevier B.V. All rights reserved.
Effect of mandibular advancement therapy on inflammatory biomarkers in obstructive sleep apnea: A systematic review
(Wolters Kluwer Medknow Publications, 2024) Pooja Priyadarshini; Deepak Singh; Vipul Kumar Sharma; T.P. Chaturvedi; Akhilesh Kumar Singh
To review the literature on the effect of mandibular advancement therapy (MAT) on inflammatory biomarkers in obstructive sleep apnea (OSA). The present systematic review addresses the following focus question: What is the effect of MAT on inflammatory biomarkers in OSA? Electronic and manual literature searches were conducted on databases: PubMed/MEDLINE, Web of Science, and Cochrane Library for studies published until September 2021 to collect information about the effect of mandibular advancement therapy, a non-continuous positive airway pressure alternative measurement of OSA. A systematic literature review was performed following the PRISMA guidelines to identify studies evaluating the effect of MAT in patients suffering from OSA. Randomized clinical trials were included, and case reports, retrospective studies, literature reviews, in-vitro studies, observational studies, authors' opinions, letters to the editor, and engineering articles were excluded. Fifty-nine articles published before September 2021 were identified. Fifty-four articles met the inclusion criteria. After assessing inclusion criteria, three clinical trials were included with 148 patients suffering from OSA and treated with mandibular advancement therapy. The follow-up period ranged from two to three months, with the average follow-up being 1.66 months. The mean age of the patients was observed to be 53.11 ± 2.65 years. The mean Epworth Sleepiness Scale observed in patients in all three clinical trials was 9.75 ± 0.89. MAT in patients with moderate or severe OSA reduced apnea-hypopnea index but has less effect on inflammatory and metabolic biomarkers. © 2024 National Journal of Maxillofacial Surgery.
Effect of orthodontic retraction force on thick and thin gingival biotypes in different grades of gingival recession and alveolar bone quality: A finite element analysis
(Wolters Kluwer Medknow Publications, 2023) T.P. Chaturvedi; Deepak Singh; Vipul Kumar Sharma; Pooja Priyadarshani; Shweta Turkiya
INTRODUCTION: To evaluate the effect of orthodontic retraction force on thick and thin gingival biotypes of anterior teeth having grade I and II gingival recession with D1 and D2 alveolar bone densities by assessing the displacement of teeth and deformation in gingival tissue, along with evaluating the amount of equivalent stress on teeth and gingiva in finite element model. MATERIALS AND METHOD: Based on cone-beam computed tomography datasets, eight models (LC01-LC08) of maxilla with appliance assembly were created. A retraction load of 150 gm was applied on each model during the finite element analysis (FEA), and then values of teeth displacement, gingival deformation, and von Mises stress were evaluated. RESULT: All the models with D1 bone density (LC01-04) were showing gingival deformation, whereas models with D2 bone quality (LC05-08) give no significant outcome. The amount of von Mises stress for teeth and gingival tissue in each model was the same for both central and lateral incisors. CONCLUSION: All the models having D1 bone quality showed greater gingival deformation after applying retraction force, whereas in models with D2 bone density, deformation was not significant. Changes in gingival tissue are brought about by orthodontic treatment, which also helps to correct the periodontal defects; however, bone density plays a significant role in improving gingival recession. © 2023 Wolters Kluwer Medknow Publications. All rights reserved.
Emergency orthodontic care.
(2011) Avesh Sachan; T.P. Chaturvedi
Orthodontic appliances or parts of orthodontic appliances have caused problems from less severe like discomfort, ulcers and irritation of lips or cheeks to most severe problems like swallowing or aspiration of appliances or its parts. The type of appliances that have caused problems and their clinical management are discussed. Suggestions are made to try and avoid the problems that were encountered in the literature in patients undergoing orthodontic treatment.
Erratum to: Pyogenic Granuloma - Hyperplastic Lesion of the Gingiva: Case Reports (The Open Dentistry Journal, (2012), 6, (153-156))
(2012) Pushpendra Kumar Verma; Ruchi Srivastava; H.C. Baranwal; T.P. Chaturvedi; Anju Gautam; Amit Singh
Pyogenic granuloma is a reactive hyperplasia of connective tissue in response to local irritants. It is a tumourlike growth of the oral cavity, frequently located surrounding the anterior teeth or skin that is considered to be neoplastic in nature. It usually arises in response to various stimuli such as low-grade local irritation, traumatic injury, hormonal factors, or certain kinds of drugs. Histologically, the surface epithelium may be intact, or may show foci of ulcerations or even exhibiting hyperkeratosis. It overlies a mass of dense connective tissue composed of significant amounts of mature collagen. Gingiva is the most common site affected followed by buccal mucosa, tongue and lips. Pyogenic granuloma in general, does not occur when excised along with the base and its causative factors. This paper presents some cases of a pyogenic granuloma managed by surgical intervention.
Evaluation of surface-modified orthodontic wires by different concentration and dipping duration of titanium oxide (TiO 2) nanoparticles
(Wolters Kluwer Medknow Publications, 2023) T.P. Chaturvedi; P. Indumathi; Vipul Kumar Sharma; Ashish Agrawal; Deepak Singh; Chandan Upadhyay
OBJECTIVE: To evaluate in-vitro surface characteristics and frictional properties of orthodontic stainless steel and beta-titanium archwires after surface modification with different concentrations and coating time of titanium oxide (TiO 2) nanoparticles by Sol-gel dip coating method. MATERIALS AND METHODS: The experiment was carried out with 4 different concentrations (1:2, 1:4, 1:6, and 1:8) and three different dipping durations (24 hours, 48 hours, and 72 hours) over ten main test groups of SS and TMA archwires with uncoated wires acting as control in both dry and wet conditions. Phase analysis and surface characterization of TiO 2 was analyzed by X-ray Diffractometry, surface evaluation with the help of scanning electron microscopy (SEM), and frictional characteristics were evaluated. RESULTS: Among all the concentrations 1:6 ratio with 48 hours of dipping duration showed better surface characteristics. A statistically significant difference in frictional coefficient was observed in both SS and TMA wires than their respective controls (p = 0.001). Intragroup comparison among SS and TMA groups showed that groups with 1:6 ratio and 48 hours dipping duration had least frictional coefficient in both dry and wet conditions (p = 0.001). Intergroup comparison between SS and TMA showed that SS group had significantly reduced friction than TMA (p = 0.001) except in few groups. CONCLUSION: TiO 2 nanoparticle with a concentration ratio of 1:6 and 48 hours dipping duration is recommended for surface modification of orthodontic archwires. © 2023 Wolters Kluwer Medknow Publications. All rights reserved.
Immediate placement of implant in fresh extraction socket with early loading
(Wolters Kluwer Medknow Publications, 2012) Archana Singh; Aratee Gupta; Ashish Yadav; T.P. Chaturvedi; Atul Bhatnagar; B.P. Singh
Implant placement in maxillary anterior region has most aesthetic challenges in implant dentistry because tooth loss lead to bone resorption and collapse of gingival architecture, which lead to aesthetic compromise and inadequate bone for implant placement. Immediate implant placement into fresh extraction socket reduces the treatment time, cost, preserved the gingival aesthetic and increases the comfort of the patient. This article describes the procedure for immediate implant placement in fresh extraction socket and early loading of implant with zirconia crown. Clinical and radiographic examination revealed width and length of the tooth for selecting implant size and design. Cement retained zirconia crown was used for early loading. Implant was successfully loaded and was functional during 36 months follow up period. Immediate placement and early loading of dental implant provides advantages like fewer surgical procedures, shorter treatment time, and improved aesthetic and psychological confidence. © 2012 Wolters Kluwer Medknow Publications. All rights reserved.