scholarly journals AN IN VITRO COMPARATIVE EVALUATION OF COMMERCIALLY AVAILABLE MOUTH RINSES (ALCOHOL CONTAINING AND ALCOHOL FREE) ON THE MICROHARDNESS OF A NANOFILLED COMPOSITE RESIN RESTORATIVE MATERIAL

2020 ◽  
Vol 8 (8) ◽  
pp. 420-428
Author(s):  
Santhosh P. Sagar ◽  
◽  
Sahadev Chickmagarvalli Krishnegowda ◽  
Praveen Kumar M.R ◽  
Bharath Makonahalli Jaganath ◽  
...  
Keyword(s):  
Comparative Evaluation ◽  
Composite Resin ◽  
Restorative Material ◽  
Mouth Rinses

scholarly journals A Comparative Evaluation of Fracture Resistance of Endodontically Treated Teeth restored with Composite Resin Core using Two Different Designs of Prefabricated Metal Posts: An in vitro Study

2017 ◽  
Vol 7 (2) ◽  
pp. 97-102
Author(s):  
Sabita M Ram ◽  
Naisargi Shah ◽  
Amit M Gaikwad
Keyword(s):  
Fracture Resistance ◽  
Comparative Evaluation ◽  
Composite Resin ◽  
Fracture Load ◽  
Endodontically Treated Teeth ◽  
Group I ◽  
Resin Core ◽  
Post And Core ◽  
The Mean

ABSTRACT Aim To comparatively evaluate the fracture resistance of endodontically treated teeth restored with light-cured composite resin core using two different designs of prefabricated metal posts. Materials and methods A total of 30 single-rooted anterior teeth were selected for the study and endodontically treated. Teeth were sectioned 2 mm above the cementoenamel junction and were randomly divided into two groups (n = 15). Teeth in group I were restored with Parallel post—EG post and group II with parallel post with coronal flare—i post. Light-cured composite core buildup was done in all samples using a customized core former. Compressive load was applied at a 135° angle to the long axis of the tooth at a cross-head speed of 1 mm/minute until visible signs of fracture were observed. Levene's test and t-test were used to determine the difference of the failure loads between the groups (α = 0.05). Results The mean values (standard deviation [SD]) for fracture resistance were 295.55 N and 469.59 N for parallel post—EG post and parallel post with coronal flare—i post respectively. Since the p-value for the t-test is less than 0.05, it indicates that we should reject null hypothesis and conclude that the mean fracture load of parallel post with coronal flare—i post is significantly more than that of mean fracture load of parallel post—EG post. Conclusion The study conducted evaluated that the fracture resistance of endodontically treated teeth with parallel post with coronal flare—i post and core buildup had better strength as compared with parallel post—EG post and core buildup. Clinical significance The present study will help the clinician to select the appropriate prefabricated metal post that will fit exactly into the coronal flare of the canal improving clinical performance, thus increasing the longevity of the restoration. How to cite this article Gaikwad AM, Shah N, Ram SM. A Comparative Evaluation of Fracture Resistance of Endodontically Treated Teeth restored with Composite Resin Core using Two Different Designs of Prefabricated Metal Posts: An in vitro Study. J Contemp Dent 2017;7(2):97-102.

In vitro Comparative Evaluation of Various Restorative Materials used for restoring Class III Cavities in Deciduous Anterior Teeth: A Clinical Study

2016 ◽  
Vol 17 (12) ◽  
pp. 1022-1026 ◽  
Author(s):  
Deepak Khandelwal ◽  
Shweta Nihalani ◽  
Harsh Priyank ◽  
Ankita Verma ◽  
Esha Chaudhary
Keyword(s):  
Comparative Evaluation ◽  
Primary Teeth ◽  
Composite Resin ◽  
Class Iii ◽  
Anterior Teeth ◽  
Carious Lesions ◽  
Restorative Materials ◽  
Materials Used

ABSTRACT Introduction Beauty standards in today's modernized world scenario are formed by well-aligned and well-designed bright white teeth. One of the major reasons behind patients reporting to dental clinics is pain. Caries in the anterior primary teeth forms one of the major concerns from a restorative point of view. Very few studies are quoted in literature which stresses on the follow-up of anterior restorations in primary teeth. Hence, we evaluated and compared the efficacy of composite resin and resin-modified glass ionomer cement (RGIC) for class III restorations in primary anterior teeth. Materials and methods The present study was conducted in the pediatric dental wing and included a total of 80 patients aged 3 to 5½ years who reported with the chief complaint of carious lesions in the primary anterior teeth. Patients having minimal of a pair of similar appearing small carious lesions on the same proximal surfaces of the deciduous maxillary incisors were included for the study. All the patients were randomly divided into two groups: One in which RGIC restoration was done and other in which composite restoration was done. Cavity preparation was done and filling of the cavity with the restorative materials was carried out. Assessment of the restorations was done at 4, 8, and 12 months time following criteria given by Ryge et al. All the results were analyzed by Statistical Package for the Social Sciences (SPSS) software. Mann–Whitney test and one-way analysis of variance (ANOVA) were used to evaluate the level of significance; p value less than 0.05 was considered as significant. Results For composite and RGIC restorations, the mean score for anatomic shape was 1.21 and 1.10 respectively. While comparing the clinical parameters, nonsignificant results were obtained between composite and RGIC restorative materials at 4-, 8-, and 12-month interval. On comparing the clinical parameters for individual restorative materials at different time intervals, statistically significant results were obtained only for anatomical shape and form. Conclusion Both RGIC and composite resin restorative materials showed acceptable clinical outcomes after 12 months of follow-up in deciduous anterior teeth. In restoring class III restorations in primary anterior teeth, both the restorative materials showed similar outcome. Clinical significance How to cite this article Priyank H, Verma A, Gupta K, Chaudhary E, Khandelwal D, Nihalani S. In vitro Comparative Evaluation of Various Restorative Materials used for restoring Class III Cavities in Deciduous Anterior Teeth: A Clinical Study. J Contemp Dent Pract 2016;17(12):1022-1026.

scholarly journals Effect of Bleaching with 15% Carbamide Peroxide on Flexural Strength of Three Resin-Based Restorative Materials

2020 ◽  
Author(s):  
Soodabeh Kimyai ◽  
Yasaman Ghavami Lahij ◽  
Mehdi Daneshpooy ◽  
Elmira Jafari Navimipour ◽  
Parnian Alizadeh Oskoee
Keyword(s):  
Flexural Strength ◽  
Hybrid Composite ◽  
Composite Resin ◽  
Restorative Material ◽  
Carbamide Peroxide ◽  
Bleaching Procedure ◽  
Different Types ◽  
Restorative Materials ◽  
The Mean

Objectives: Considering the increasing use of vital bleaching procedures and the increased application of newly introduced resin-based materials for tooth restoration, this study was designed to evaluate the effect of 15% carbamide peroxide gel on the flexural strength of three resin-based restorative materials. Materials and Methods: Three different types of restorative materials namely Beautifil II giomer, Cention N, and Z250 micro-hybrid composite resin were evaluated in this in vitro, experimental study. Twenty-four bar-shaped specimens were prepared from each restorative material, totaling 72 specimens, and were randomly assigned to two subgroups with and without bleaching procedure (n=12). In the bleaching subgroups, 15% carbamide peroxide gel was applied on the specimen surface 8 h a day for 14 days. The flexural strength of the specimens was then measured. Two-way ANOVA was used to compare the flexural strength of the specimens. Results: There was a significant reduction in the flexural strength of materials following exposure to the bleaching agent (P<0.05). The flexural strength was significantly higher in the groups that did not undergo bleaching. However, the mean flexural strength of the restorative materials was not significantly different (P=0.12). Conclusion: The flexural strength of Beautifil II giomer, Cention N, and Z250 micro-hybrid composite resin could be compromised subsequent to bleaching with 15% carbamide peroxide gel. The three resin-based restorative materials exhibited similar flexural strength values irrespective of the use or no use of 15% carbamide peroxide gel.

scholarly journals Comparative Evaluation of the Shear Bond Strength of a Total Etch Adhesive with a Self-Etching Primer on an Endodontically Treated Teeth

2012 ◽  
Vol 3 (3) ◽  
pp. 247-249
Author(s):  
Shamina Bawa
Keyword(s):  
Bond Strength ◽  
Comparative Evaluation ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Strength Analysis ◽  
Endodontically Treated Teeth ◽  
Dentin Bonding ◽  
Bonding System ◽  
Group I

ABSTRACT The present in vitro investigation evaluated the shear bond strength of endodontically treated teeth restored with composite resin in conjunction with a total etch adhesive excite and a selfetching primer, Prompt-L-Pop. The aim of this study was to evaluate and compare the bond strength of two generation bonding systems when used on endodontically treated teeth. Twenty-four freshly extracted noncarious intact human maxillary and mandibular teeth were selected for this study. They were divided into 2 groups of 12 teeth each. The occlusal surface of the teeth was ground to prepare flat dentin surface. In group I, 5th generation dentin bonding system excite was used and in group 2, Prompt-L-pop, a self-etching primer was used. Both the dentin bonding agents were placed on the flat dentinal surfaces according to the manufacturer's instructions. Cylinders of composite resin were built on the prepared surface using Teflon mold. The prepared specimen were then embedded on an acrylic jig of suitable dimension and transferred to Instron machine for shear bond strength analysis. Shear bond strengths were measured at a cross head speed of 0.03 mm/sec. How to cite this article Bawa S, Hegde MN. Comparative Evaluation of the Shear Bond Strength of a Total Etch Adhesive with a Self-Etching Primer on an Endodontically Treated Teeth. World J Dent 2012;3(3):247-249.

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