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PubMed | Swargiya Dadasaheb Kalmegh Smruti Dental College and Hospital, Triveni Institute of Dental science, Modern Dental College and Research Center and Dr Rajesh Ramdasji Kambe Dental College And Hospital
Type: Journal Article | Journal: The Nigerian postgraduate medical journal | Year: 2016

Endodontic instruments including the nickel-titanium (NiTi) instruments produce debris and smear layer during instrumentation. The study was carried out to evaluate and compare the cleaning effectiveness of root canal preparation using three different rotary NiTi instrumentation systems - ProTaper Universal, K3 and Mtwo by means of scanning electron microscopy (SEM).Thirty-six freshly extracted permanent mandibular molars were randomly divided into four groups: ProTaper Universal, K3, Mtwo system and control group. The mesiobuccal canal was cleaned and shaped with rotary instruments. The intracanal irrigant used after each instrument was 3 mL of 3% sodium hypochlorite (NaOCl). After the cleaning and shaping was completed, a 1-min 17% ethylenediaminetetraacetic acid rinse was followed by a final NaOCl rinse. All samples were decoronated. Mesial roots were sectioned buccolingually and examined under SEM at 500 magnification in three areas of root canal. Canal walls were quantitatively evaluated using a five-score evaluation scale. Statistical analysis was done using Kruskal-Wallis test, Fishers exact test and weighted kappa.Completely clean canals were not found in any of the groups. The mean value of debris score for ProTaper, K3 and Mtwo was 2.35, 2.41 and 2.22 respectively. There was no statistically significant difference between the three tested groups (P = 0.237). The apical thirds of the canal was found to be significantly less clean than coronal and middle thirds irrespective of the system used.There was no statistically significant difference between the three tested groups - ProTaper, K3 and Mtwo in cleaning different regions of the canal - coronal, middle and apical.


Rohit S.,Rajarajeswari Dental College and Hospital | Praveen Reddy B.,Government Dental College | Sreedevi B.,Hitkarini Dental College and Hospital | Prakash S.,Triveni Institute of Dental science
Journal of Clinical and Diagnostic Research | Year: 2015

Pycnodysostosis is a rare craniofacial syndrome characterized by dwarfism, cranial anomalies, diffuse osteosclerosis where multiple fracture of long bones and osteomyelitis of jaw are frequent complications. This clinical entity was first described in 1962 by Maroteaux and Lamy. This article presents two clinical cases of pycnodysostosis with their clinical and radiological characteristics. © 2015, Journal of Clinical and Diagnostic Research. All right reserved.


PubMed | Triveni Institute of Dental science, Hitkarini Dental College and Hospital, Government Dental College and Rajarajeswari Dental College and Hospital
Type: Journal Article | Journal: Journal of clinical and diagnostic research : JCDR | Year: 2015

Pycnodysostosis is a rare craniofacial syndrome characterized by dwarfism, cranial anomalies, diffuse osteosclerosis where multiple fracture of long bones and osteomyelitis of jaw are frequent complications. This clinical entity was first described in 1962 by Maroteaux and Lamy. This article presents two clinical cases of pycnodysostosis with their clinical and radiological characteristics.


Kharat S.S.,Triveni Institute of Dental science | Tatikonda A.,Triveni Institute of Dental science | Raina S.,Dr D Y Patil Dental College and Hospital | Gubrellay P.,Crown College | And 2 more authors.
Journal of Clinical and Diagnostic Research | Year: 2015

Background: The prime goal of a diligent prosthodontist is to obtain adequate marginal fit while restoring lost tooth structure. The marginal fit of the restoration, in turn depends upon the geometrical morphology of the tooth preparation. Objective: To determine the effect of varying degree of convergence angle on the marginal seating of the single crown, three-unit fixed partial denture and multiple-unit fixed partial denture with pier abutment. Materials and Methods: Three dies, of same convergence angle, were placed in an arch form on a base. In this way, four arch forms were prepared for four different convergence angles i.e. 00, 60, 120, and 200. Five castings each were made for single crown, 3-unit fixed partial denture and multiple-unit fixed partial denture (FPD) with pier abutment for each convergence angle. The castings were seated on their respective dies and vertical marginal discrepancy was measured at four points for each casting with the help of an optical microscope. Results: The results showed that 200 convergence angle showed better marginal seating of the single crown, 3-unit FPD as well as for the multiple unit FPD. Conclusion: There was a possibility that the retention and resistance may be compromised with 200 taper. Hence 120 taper is suggested for crowns and fixed partial denture retainers as the marginal discrepancy is reasonable and retention and resistance is optimum. There was a high statistical significant difference in the values obtained for the different convergence angles. © 2015, Journal of Clinical and Diagnostic Research. All rights reserved.


PubMed | Dr D Y Patil Dental College and Hospital, Triveni Institute of Dental science and Crown College
Type: Journal Article | Journal: Journal of clinical and diagnostic research : JCDR | Year: 2015

The prime goal of a diligent prosthodontist is to obtain adequate marginal fit while restoring lost tooth structure. The marginal fit of the restoration, in turn depends upon the geometrical morphology of the tooth preparation.To determine the effect of varying degree of convergence angle on the marginal seating of the single crown, three-unit fixed partial denture and multiple-unit fixed partial denture with pier abutment.Three dies, of same convergence angle, were placed in an arch form on a base. In this way, four arch forms were prepared for four different convergence angles i.e. 0, 6, 12, and 20. Five castings each were made for single crown, 3-unit fixed partial denture and multiple-unit fixed partial denture (FPD) with pier abutment for each convergence angle. The castings were seated on their respective dies and vertical marginal discrepancy was measured at four points for each casting with the help of an optical microscope.The results showed that 200 convergence angle showed better marginal seating of the single crown, 3-unit FPD as well as for the multiple unit FPD.There was a possibility that the retention and resistance may be compromised with 200 taper. Hence 120 taper is suggested for crowns and fixed partial denture retainers as the marginal discrepancy is reasonable and retention and resistance is optimum. There was a high statistical significant difference in the values obtained for the different convergence angles.


PubMed | New Horizon Dental College, Triveni Institute of Dental science and Crown College
Type: Journal Article | Journal: Journal of International Society of Preventive & Community Dentistry | Year: 2014

To determine the denture hygiene habits in complete denture wearers.In this study, a self-administered structured questionnaire was developed to know the attitude of the patients from the Department of Prosthodontics regarding denture hygiene. The study sample consisted of totally 500 subjects, which included 284 (56.8%) males and 216 (43.2%) females. Data were analyzed using SPSS version 15.0 with Chi-square ((2)) test at P < 0.05.Nearly half of the subjects cleaned their dentures daily once. Participants from the younger age group and who had been wearing dentures since 2 years maintained better frequency of cleaning. The majority of these subjects used water and brush for denture cleansing. After seeing the condition, more than half of the dentures were rated as poor (60%). There was significant difference between all the groups on comparison (P = 0.001).Poor condition of complete dentures seen in the population is mainly due to irregular cleansing habits and also less usage of cleansing solutions. Dentists should give proper instructions regarding maintenance of denture hygiene.

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