Seema Dental College & Hospital

Rishīkesh, India

Seema Dental College & Hospital

Rishīkesh, India
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PubMed | Daswani Dental College, DAPMRV Dental College, Seema Dental College & Hospital and Vananchal Dental College & Hospital
Type: Journal Article | Journal: Journal of international oral health : JIOH | Year: 2015

The objective of this study was to compare the efficiency of four commonly used chemicals in their ability to remove smear layer after instrumentation using scanning electron microscope (SEM).Seventy-five extracted single canaled teeth of roots ranging 10-12 mm in length were used for the study. Teeth were divided into 4 study groups and 1 control group of 15 teeth each. Standard access to the pulp chambers were performed with diamond burs. The lengths of the teeth were determined by the introduction of a size 15 K-file into the root canal until the tip reached the apical foramen. The working length for preparation of the canal is set 0.5 mm shorter than the measurement. Irrigation was performed using 2 ml of irrigant for every instrument change and finally rinsed using 5 ml of the respective solutions. The roots were then split with a chisel and hammer. One-half of each tooth was selected and prepared for SEM examination. After assembly on coded stubs, the specimens were placed in a vacuum chamber and sputter-coated with a 300 gold layer. The specimens were then analyzed using a Philips SEM XL 30. The dentinal wall of the cervical, middle and apical thirds was observed at magnifications of up to 1000 for the presence/absence of smear layer and visualization of the entrance to dentinal tubules. Photomicrographs (1000) of these areas on each of the coronal, middle and apical thirds were made Data were analyzed using Kruskal-Wallis test and Mann-Whitney U test.SEM study done on these prepared teeth with the popularly used four chemicals, namely, 3% NaOCl (Group A), 3% NaOCl followed by 17% ethylene diamine-tetra-acetic acid (Group B), 0.2% chlorhexidine (Group C) and 3% NaOCl followed by MTAD (Group D), with distilled water (Group E) which is used as control, revealed that NaOCl showed statistically significant, better cleansing effect than distilled water. Chlorhexidine and NaOCl showed equal kind of efficacy but were statistically significant, with lower efficacy than MTAD. It may be concluded that MTAD appears to be the most effective solution compared to the rest.The study demonstrated that MTAD as a final rinse after the entire instrumentation with 3% NaOCl as irrigant provided the best cleansing in all parts of the root canal system. The smear layer has been shown to hinder the penetration of intracanal disinfectants and sealers into dentinal tubules and has the potential of compromising the seal of the root filling. Degradation of the smear layer after treatment may contribute to leakage and reinfection of the root canal space. Removal of the smear layer reduced the penetration of bacteria through the root canal system after root filling.


Sunny,Seema Dental College & Hospital | Agarwal V.,Seema Dental College & Hospital | Ranjan R.,Seema Dental College & Hospital
Indian Journal of Community Health | Year: 2017

Background: Oral health is an integral part of general health. Poor oral health can have adverse effect on general health hence a good oral health is very essential, which in turn is achieved by good oral hygiene. Dental caries and periodontal disease are the most commonly occurring diseases affecting mankind. Dental plaque is a very important factor in the causation of both the diseases. (2) Aim & Objective: To evaluate efficacy of four different types of toothbrushes, with difference in duration of brushing along with different bristle hardness in removal of microbial plaque. Material & Methods: In a randomized controlled trial, four groups with 40 subjects used manual toothbrushes with either hard, medium, soft and ultra-soft bristles. On baseline examination, clinical parameter plaque index (Sillness & Loe, 1964) was recorded. Selected subjects were refrained from all kinds of oral hygiene measures for 24 hrs before clinical appointment. On the day of clinical appointment scores of pre and post brushing were recorded in each patient when brushing time was set for 1 minute and same procedure was repeated after a wash off period of 3 days and similar recordings were made with brushing time of 112 minute. Primary outcome was measured with differences in the plaque index (Sillness & Loe, 1964) compared to baseline. Results: Significant reduction in mean value of plaque score was observed on comparing pre-brushing and post-brushing data in all the subjects irrespective of bristle hardness in both 1 minute and 112 minute groups. On increasing time duration from 1 minute to 112minute intergroup comparison revealed that significant correlation exist in mean plaque score reduction in subjects using medium bristle brush, soft bristle brush, ultra-soft bristle brush. However, no significant reduction in plaque score was observed on increasing duration from 1 minute to 11/2 minute in subjects using hard bristle brush. Conclusion: Manual toothbrushes with hard bristles better remove plaque, but may also cause more soft tissue trauma compared to brushes with softer bristles. © 2017, Indian Association of Preventive and Social Medicine. All rights reserved.


PubMed | Seema Dental College & Hospital
Type: Journal Article | Journal: Journal of clinical and diagnostic research : JCDR | Year: 2014

Restoration of aesthetics, function and comfort in badly compromised dentition and its supporting tissues often poses a great challenge. The long term success of such cases depends largely on simultaneous achieving of satisfying aesthetics and a harmonious occlusion. Proper examination, evaluation and diagnosis of the prevailing oral conditions serve as a prelude to a rationalized treatment plan and its ultimate success. Invariably, it also becomes significant to understand and recognize the consequences of long term negligence by the patient. An unattended such condition, apart from causing compromised oral functions may also lead to neuromuscular problems in and around temporo-mandibular joint (TMJ) causing frequent pain in the region and unyielding headaches. Restoring physiologically advised health conditions from habitual positions and functions may require time, patience and effort by both - the patient and the dentist. A complete rehabilitation may also require involvement of more than one disciplines of dentistry. The case report highlights the contributions from prosthodontists, periodontists, endodontists and the radiologist as a team in complete rehabilitation of the patient.


PubMed | Seema Dental College & Hospital
Type: Journal Article | Journal: Journal of clinical and diagnostic research : JCDR | Year: 2015

Dental impressions are potential source of infection in a prosthodontic practice. Risk of transmission of infection through saliva, blood etc is considered as hazard for both dentist as well as dental auxiliary staff. A number of methods are currently employed for disinfecting the impressions which are technique sensitive and time consuming. This study focuses on disinfecting impression using dental UV chamber which is commonly employed for storing sterilized instruments.The aim of this invitro study was to evaluate the use of clinical UV chamber to disinfect various impression materials at different time intervals and its comparison with 2% glutaraldehyde using standard immersion technique.Total sample size of 180 specimens was taken from three different impression materials. The impressions were made from 30 dentulous subjects. A total of ten impressions were made for each impression material i.e. alginate, addition silicone and polyether impression material. Six punch samples were taken from each impression. Out of 6 punch sample, one was kept as control, second was disinfected by immersing in freshly prepared 2% glutaraldehyde solution for 10 minutes and remaining four were exposed to UV rays for 3 minutes, 6 minutes, 10 minutes and 15 minutes using dental UV chamber. Amount of disinfection achieved was evaluated by counting the colonies over the culture plates with the help of digital colony.The results showed that the mean CFUs for alginate were found to be i.e. 11797.40 5989.73 (mean SD). The mean CFUs for addition silicone impression material was found 7095.40 with a standard deviation of 4268.83 and the mean CFUs for polyether impression material was found to be 2168.92 1676 (mean SD).For alginate and addition silicone impression material, disinfection was achieved on exposure to UV rays for a period of 10 minutes. However, for polyether impression material 3 minutes of exposure to UV rays was sufficient to cause complete disinfection.


PubMed | Seema Dental College & Hospital and Vanachal Dental College
Type: Journal Article | Journal: Journal of clinical and diagnostic research : JCDR | Year: 2014

Many patients undergo orthodontic treatment for aesthetic improvement. It is well established that the patients who undergo orthodontic treatment have a high susceptibility to present plaque accumulation on their teeth because of the presence of brackets, wires and/or other orthodontic elements on the teeth surfaces with which the oral hygiene procedures might be more difficult. The orthodontic treatment is a double-action procedure regarding the periodontal tissues which may be very meaningful in increasing the periodontal health status and may be a harmful procedure which can be followed by several types of periodontal complications. There is a strong correlation between the severity and extent of gingival recessions and the orthodontic treatment suggesting that orthodontic tooth movement may lead to gingival recession. The principal objective in the treatment of gingival recession is to cover the exposed root surfaces to improve aesthetics and to reduce hypersensitivity. Different soft tissue grafting procedures have been proposed in the treatment of gingival recessions. Subepithelial connective tissue graft is a reliable method for treatment of gingival recession. The purpose of this case report was to illustrate the relationship between orthodontic therapy and gingival recession and to describe the management of this case.


PubMed | Government Dental College Nagpur, Seema Dental College & Hospital and Kalka Dental College
Type: Journal Article | Journal: Journal of clinical and diagnostic research : JCDR | Year: 2014

Dentistry is most importantly and foremost a healing profession. In todays world, it is very necessary to understand the importance of being eco-friendly in every facet of our lives, including dental practice which has a huge impact on the environment due to the large amount of metallic waste generated by various dental procedures along with excessive use of water and electricity, which specifically emphasis the thrust to move towards Green dentistry. Green dentistry is an innovative way of dental practice which is environment friendly and at the same time conserves money and time by reducing waste, conserving energy and decreasing pollution with the use of latest techniques and procedures. Green dentistry therefore, protects the environment and mankind from the hazards of rapid urbanisation in developing countries. The authors wish to emphasize the practice of eco-friendly, green dentistry in a developing country like India which needs to conserve resources and curb environmental pollution.


PubMed | Institute of Dental science, Seema Dental College & Hospital and Kalka Dental College
Type: Journal Article | Journal: Journal of clinical and diagnostic research : JCDR | Year: 2015

Emperipolesis is an uncommon biological process, in which a cell penetrates another living cell. Unlike in phagocytosis where the engulfed cell is killed by lysosomal enzymes of the macrophage, the cell exists as viable cell within another in emperipolesis and can exit at any time without any structural or functional abnormalities for either of them. This process can either be physiological or pathological and may be a pathognomonic feature of certain diseases. Histiocytes and Megakaryocytes are involved in Emperipolesis normally but tumour giant cells in Hodgkins disease and Rosai-Dorfman disease are pathologic conditions in which this process is seen. We report a mini review as this process is rare and not much reported in the literature.

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